Fire incidents durion construction work of tunnels
Transcription
Fire incidents durion construction work of tunnels
Fire incidents durion construction work of tunnels - Model scale experiments SP Technical Research Institute of Sweden Anders Lönnermark, Jonatan Hugosson, and Haukur Ingason Fire Technology SP Report 2010:86 Fires in a tunnel during construction Model scale experiments Anders Lönnermark, Jonatan Hugosson and Haukur Ingason 3 Abstract Fires in a tunnel during construction - Model scale experiments The report describes a series of model scale tests (1:40 scale) describing the situation before breakthrough in a tunnel during construction. In such a situation this means that there is only one access tunnel, the rest is a system of tunnels with no connection to the surface other than through the inlet tunnel. The tests were carried out in order to investigate the effects of smoke spread and ventilation in a tunnel during construction. The tunnel was tested during different ventilation conditions, lengths and slope. The tunnel consisted of an access part which simulated the access tunnel to the main tunnel. The access tunnel was sloped and the main tunnel was horizontal, directed in two equal distances from the access tunnel. The main tunnel had two dead ends, and a ventilation system that was provided through an air duct in the ceiling. The air duct outlet length and location was varied in the tests. A total of 36 tests were performed. The fire source was a propane burner, delivering a heat release rate equivalent to a full-scale fire of 10 MW. Fibreboard blocks, of different sizes, drenched with heptane were also used to represent the heat release rate of a construction machine. The main findings concerned the effect of the ventilation on the fire development. If the fire occurs before the breakthrough and the fire is too small it will be difficult to obtain fresh air from the access entrance and the fire will decreases in intensity and finally extinguish due to lack of oxygen caused by consumption of oxygen and recirculation of vitiated products back to the fire. Key words: tunnel, fire safety, model scale experiments, ventilation, construction SP Sveriges Tekniska Forskningsinstitut SP Technical Research Institute of Sweden SP Report 2010:86 ISBN 978-91-86622-36-7 ISSN 0284-5172 Borås, Sweden 4 Contents Abstract 3 Contents 4 Preface 5 1 Introduction 7 2 Theory 8 2.1 2.2 Scale modelling Scaling laws 8 8 3 Experimental setup 10 3.1 3.2 3.3 3.4 3.5 Geometry Measurements Fire source Fire positions Ventilation 10 13 15 16 17 4 Experimental procedure 18 5 Results 19 5.1 5.1.1 5.1.2 5.1.3 5.2 5.2.1 5.2.2 5.2.3 5.2.4 5.3 5.4 Tunnel A Ventilation Open or closed tunnel end With and without slope Tunnel A+B Ventilation Fire size Air inlet above the fire Fire position Tunnel A, A+B, A+B+C Self-extinguished fires 19 19 21 23 25 25 27 29 31 33 35 6 Discussion 37 7 Conclusions 38 8 References 39 Appendix 1 Time-resolved graphs 40 5 Preface This report describes a portion of work in a large research project that was carried out for the Swedish Civil Contingencies Agency (MSB) during the time period 2008 – 2010. The work was supported by a national advisory group consisting of numerous representatives from industry and authorities: Andreas Johansson, Gothenburg Fire Brigade Arne Brodin, Faveo Projektledning AB Bo Wahlström, Faveo Projektledning AB Kenneth Rosell, Swedish Transport Administration Kjell Hasselrot, Fireconsulting AB Lars-Erik Johansson, Swedish Work Environment Authority Marie Skogsberg, SKB Swedish Nuclear Fuel and Waste Management Co Rolf Åkerstedt, SL Stockholm Public Transport Staffan Bengtsson, Brandskyddslaget AB Stefan Jidling, Stockholm Fire Brigade Sören Lundström, MSB Swedish Civil Contingencies Agency The authors want to thank the advisory group for their efforts during this project and the Swedish Civil Contingencies Agency (MSB) for their supporting role. We would also like to thank the technicians that assisted in carrying out the model scale tests: SvenGunnar Gustafsson, Lars Gustavsson, and Tarmo Karjalainen. 6 7 1 Introduction Several large and complex tunnel systems in Sweden are at present either under construction, at the design stage, or at the planning stage. The consequences of a fire during the construction stage can be very serious, in the form of injuries, damage to property, delays to the project or environmental problems. All this imposes demanding requirements concerning knowledge of what is needed and what can be done to prevent problems from arising. However, the available knowledge is limited. Therefore a research project aimed is underway to identify and deal with problem areas. A tunnel construction site is a workplace for many persons over a long period of time. Several fires have already occurred at such sites, causing death or injuries to individuals and losses of and damage to equipment and the structure of the tunnel itself. The consequences of these fires depend not only on where they occurred in the tunnel, but also on their intensity, the nature of the fire and facilities, response of the rescue service, and resources in the form of personnel and equipment. Understanding the fire phenomena is of great importance when studying these subjects. Together with the Lund University and the Mälardalen University, SP has conducted a three-year research project, financed by the Swedish Civil Contingencies Agency (MSB), to investigate fire safety in a tunnel during construction. The results presented here are also presented in a summarised form in the main report for that project [1]. A model scale study has been conducted in the project (the results of which are presented here) in order to better understand the basic fire development phenomena that are at play in tunnels during construction. The most important aspect of such tunnels is that much of the time they are under construction no breakthrough, i.e. connection between one or more tunnels with inlet tunnels, has been obtained. Our traditional understanding of fire dynamics in tunnels is based on the assumption that tunnels have at least two openings (which is true only after breakthrough, i.e. for completed tunnels). Therefore we were interested in phenomena that are related to the geometry, the fuel, the ventilation and many other parameters. The project group came up with a list of questions to be answered in a model scale study: How significant is the chimney effect caused by access tunnels used as escape routes? - How do fires behave when there is only one opening? - What happens in terms of purely physical events and processes, and how accurately do present-day computer models reflect the observed behaviour? - How should the ventilation system be designed in order to facilitate escape? - Can a fire be 'shut in', and thus self-extinguish, and under what conditions is this possible or even appropriate? Using model scale experiments is a well know technique [2-13] to investigate the impact of a variety of different parameters on fire development. The model used in the present study was built in scale 1:40, which means that the size of the tunnel is scaled geometrically according to this ratio. This report describes basic scaling theory, the experimental set-up and test procedures and presents all the results obtained from the tests. 8 2 Theory 2.1 Scale modelling The method of scaling used in the tests presented here is arguably the most widely used method, i.e. Froude scaling. Clearly, it is neither necessary nor possible to preserve all the terms obtained by scaling theory simultaneously in model scale tests. The terms that are most important and most related to the study can be preserved. The thermal inertia of the material involved, the turbulence intensity and radiation are not explicitly scaled, but we scale the HRR, the time, flow rates, the energy content and mass. Our experience of model tunnel fire tests shows there is a good agreement between the model scale and large scale for many application fields. In scale modelling research it is, however, often the fundamental behaviour and not the absolutely correct scale modelling of all behaviour that is important. SP Fire Technology has a long experience of using scale models and these studies have clearly illustrated the many advantages of using scale models. SP has, for example, used scale models for fires in rack storage [2], fires on ferries [3], road tanker fire [4], reconstruction of the discotheque fire in Gothenburg [5] and in particular for tunnels [612]. These projects have demonstrated that the results obtained using scale models correlate well with results from full-scale trials where such a comparison has been possible. Due to the logistical difficulties associated with extremely large scale tests (and their cost), the use of scale models has been chosen as a suitable vehicle for the investigations conducted within this project. 2.2 Scaling laws When using scale modelling it is important that the similarity between the full-scale situation and the scale model is well-defined. A complete similarity involves for example both gas flow conditions and the effect of material properties. The gas flow conditions can be described by a number of non-dimensional numbers, e.g. the Froude number, the Reynolds number, and the Richardson number. For perfect scaling, all of these numbers should be the same in the scale model and in the full-scale case. This is, however, in most cases not possible and it is often enough to focus on the Froude number: Fr u2 gL (1) where u is the velocity, g is the acceleration of gravity, and L is the length. This method, often referred to as Froude scaling, has been used in the present study, i.e. the Froude number alone has been used to scale the conditions from the large scale to the model scale and vice versa. Information about scaling theories can be obtained for example from references [14-17]. The scaling of the most important parameters for this study using this method is presented in Table 2.1. 9 Table 2.1 A list of scaling correlations for the model tunnel. Type of unit Heat Release Rate, HRR (kW) Scaling modela) Q F L Q M F LM Time (s) tF tM Energy (kJ) QF QM LF LM q"M LF LM Heat Flux (kW/m2) q" F Temperature (K) LF LM TF TM 5/ 2 1/ 2 3 1/ 2 (2) (3) (4) (5) (6) a) Index M corresponds to the model scale and index F to the full scale (L M=1 and LF=20 in the present case). 10 3 Experimental setup To study the environment during a fire in a tunnel under construction, a scale model was constructed in one of the fire halls at SP. The model scale tunnel was constructed in scale 1:40. Froude scaling was used for the scaling of different parameters (see Chapter 2 for more information). 3.1 Geometry When constructing a tunnel or a tunnel system, very often a special access tunnel or entrance tunnel is constructed. This tunnel is in itself not part of the final tunnel system but is needed to rapidly reach a point in the system from which the real tunnels can be constructed. The debris from the blasting is also transported away through the access tunnel. To limit the length of the access tunnel it may be relatively steep. A model scale tunnel system (scale 1:40) was designed to include both an access tunnel, which ended in a T, with the two arms of the T having different lengths. This means that the system consisted of three parts: A, B and C (Figure 3.1) where the tunnel opening is located in tunnel A and both tunnel B and C have closed ends. Tunnels A and B were 3.0 m long while tunnel C was 1.5 m long. The height and width of all tunnels was 0.15 m. This corresponds to a cross-section of 6 m × 6 m in real scale. The A tunnel had a slope of 10° while tunnel B and C were horizontal. In some tests only tunnel A was used, in some tests all three tunnels and in most cases tunnel A and tunnel B. A ventilation pipe (0.04 m in diameter) entered tunnel A, reaching 2.25 m into the tunnel, i.e. 0.75 m from the end of the tunnel when only tunnel A was used. When tunnels A+B or A+B+C were used, the ventilation tube passed through tunnel A and ended 0.75 m from the end of tunnel B and 0.75 m from the end of tunnel C (the ventilation tube was divided into two: one entering tunnel B and one entering tunnel C). In one of the tests with only tunnel A, the tunnel was positioned horizontally for comparison. Three different locations of the fire were tested: positions 1, 2 and 3 (see Figure 3.1). Position 1 was located 0.375 m from the lower end of tunnel A. Positions 2 and 3 were located 0.375 m and 1.5 m, respectively, from the closed end of tunnel B. 11 x 2 3.00 y 3 B A 0.15 1 1.50 3.00 C 0.15 Figure 3.1 The geometry of model scale tunnel. Dimensions in m. 0.15 0.04 0.15 Figure 3.2 Cross-section of the model scale tunnel. The ring represents the ventilation tube. Dimensions in m. The coordinate system in Figure 3.1 is defined so that x=0 represents the end of tunnel A and y=0 represents the end of tunnel B. This coordinate system has been used when presenting the experimental results. The tunnel was constructed in Promatect H, 10 mm thick with an outer layer of 18 mm plywood (see Figure 3.4). On one side of tunnel A and tunnel B, several windows were installed to allow visual observations of the fire and the smoke. 12 3.00 10° Figure 3.3 Side view of tunnel A showing its inclination and the ventilation tube passing tunnel A into tunnel B. Figure 3.4 The model scale tunnel system before the walls and windows were fully installed. 13 Figure 3.5 3.2 The lower part of section A with the exit of the ventilation tube and some instrumentation near fire position 1. Measurements In addition to visual observations, a number of measurements were performed during the tests: gas temperatures and O2, CO, and CO2 concentrations. Below the measurements are further described. Gas analysis The probes for gas sampling were placed 0.188 m after and before the fire, i.e. 0.187 m and 0.563 m, respectively, from the end of the tunnel when the fire is in that position. In tunnel B a third position 1.688 m from the end of the tunnel was used. The height of the measurement was 0.075 m, i.e. half the tunnel height. Temperatures Temperatures were measured with thermocouples (type K, 0.25 mm) both near the ceiling along the tunnel and in thermocouple trees in selected positions. The thermocouple trees had five thermocouples at heights: 13 mm, 50 mm, 75 mm, 100 mm and 125 mm, measured from the ceiling. In a few positions thermocouples with a diameter of 0.8 mm were used. In Table 3.1 this is written as “TC 0.8mm”. In the same position, an additional thermocouple with a diameter of 0.25 mm, was also mounted. The height of the two thermocouples was 75 mm. The reason for having two thermocouples of different size was that from these measurements the “real” gas temperature could be calculated. The descriptions “Left” and “Right” are defined facing away from the fire towards the opening. These positions were located 50 mm from the centreline, i.e., 25 mm from the wall. 14 Temperatures were measured in many different position and in Table 3.1 all the measurement positions/channels are described. Distances are given both from the fire and from the end of the tunnel. Note that the for Tunnel A the distances are measured along the x-axis and for the Tunnel B+C along the y-axis (see Figure 3.1) Table 3.1 No Description of measurement positions. Distance Dist from L, C, R Temperature c) from fire end of tunnel Channel Tunnel A 1 9 0.188 0.563 Right TC tree TC 75mm; TC 0.8mm TC tree TC 13 mm TC 13 mm TC 13 mm TC tree TC 75mm; TC 0.8mm TC tree 10 11 12 13 14 15 16 17 b) 18 0.375 0.5 1 1.125 1.125 1.5 2 2.5 2.5 0.75 0.875 1.375 1.5 1.5 1.875 2.375 2.875 2.875 TC 20 mm TC 13 mm TC 13 mm TC 13 mm TC 13 mm TC 13 mm TC 13 mm TC 13 mm TC 75mm 2 b) 3 4 5 6 7 8 b) 19 Tunnel B+C 20 b) 21 -0.188 -0.188 0.187 Left 0.187 Centre -0.188 0 0 0 0.188 0.188 0.187 0.375 0.375 0.375 0.563 0.563 Centre Left Left Left Right Left Left Left Centre 2.875 Right TC 13 mm -0.188 -0.188 0.187 Left 0.187 Centre 22 23 24 25 26 b) 27 -0.188 0 0 0 0.188 0.188 0.187 0.375 0.375 0.375 0.563 0.563 28 0.188 0.563 Right TC tree TC tree; TC 0.8mm TC tree TC 13 mm TC 13 mm TC 13 mm TC tree TC tree; TC 0.8mm TC tree 29 30 31 0.375 0.5 0.938 0.938 0.75 0.875 1.312 1.312 0.938 1 1.125 1.312 Right 1.375 Left 1.5 Left 32 33 34 35 2.5 Right Left Centre Right Left Centre Right Left Centre Right Left Centre Centre Left Left Centre TC 20 mm TC 13 mm TC tree TC 75mm; TC 0.8mm TC tree TC 13 mm TC 13 mm a) a) Ch 1-5 Ch6, Ch 7 Gas: Ch 113, 114, 115 Ch 8-12 Ch 13 Ch 14 Ch 15 Ch 16-20 Ch 21, Ch 22 Gas: Ch 116, 117, 118 Ch 23-27 Centre of tube outlet Ch 28 Ch 29 Ch 30 Ch 31 Ch 32 Ch 33 Ch 34 Ch 35 d) Ch 36 Gas: Ch 108, 119, 120 Ch 37 Ch 38-42 Ch 43-47, Ch 48 Gas: Ch 113, 114, 115 Ch 49-53 Ch 54 Ch 55 Ch 56 Ch 57-61 Ch 62-66, Ch 67 Gas: Ch 116, 117, 118 Ch 68-72 Centre of tube outlet Ch 73 Ch 74 Ch 75-79 Ch 80, ch 81 Ch 82-86 Ch 87 Ch 88 15 No Distance c) from fire Dist from end of tunnel L, C, R 36 37 b) 38 1.125 1.313 1.313 1.5 Right 1.687 Left 1.687 Centre 39 40 41 42 43 44 45 1.313 1.5 2 2.5 2.5 2.625 2.775 1.687 1.875 2.375 2.875 2.875 3 3.15 Right Left Left Left Right Left Left Temperature Channel TC 13 mm TC tree TC 75mm; TC 0.8mm TC tree TC 13 mm TC 13 mm TC 13 mm TC 13 mm TC 13 mm TC 13 mm Ch 89 Ch 90-94 Ch 95 Ch 96 Gas: Ch 108, 119, 120 Ch 97-101 Ch 102 Ch 103 Ch 104 Ch 105 Ch 106 Ch 107 Centre of tube outlet Ch 109 Ch 110 Ch 111 Ch 112 a) a) b) c) d) 46 3.375 3.75 Centre TC 20 mm 47 3.75 4.125 Left TC 13 mm 48 3.75 4.125 Centre TC 13 mm 49 3.75 4.125 Right TC 13 mm At the centre of the air tube opening. Gas measurements of O2, CO and CO2. Only three positions at the same time. When only Tunnel A was used, the positions 2, 8, and 18 were used. When Tunnel A+B were used, the positions 21, 27, and 38 were used. For Tunnel B and C, the distance from fire is referring to the fire position located at the end of the tunnel. In Test 1 to Test 4 the TC in Ch 36 was positioned above the tube while from Test 5 it was moved to the height 75 mm, i.e., at the sampling point for gas. 3.3 Fire source Four different fire sources were used including: one propane burner and pieces of fibre board soaked with heptane and wrapped in a piece of polyethene. Their characteristics are summarised in Table 3.2. The different fire sources are shown in the pictures in Figure 3.6. Table 3.2 Fire source 1 2 3 4 Summary of properties of the fire sources. Size, L×W×H [mm3] Propane burner 10×10×12 30×30×24 50×100×48 Heptane [mL] Time to HRRmax [s] - Burning time [s] - Heat release rate [kW] 1 0.5 3 9 0.4 1.3 3.2 10 20 30 120 250 300 ∞ The maximum HRRs of 1 kW, 0.4 kW, 1.3 kW and 3.2 kW, represent 10 MW, 4.4 MW, 14 MW and 33 MW, respectively, in full scale. 16 a) b) c) d) e) Figure 3.6 3.4 Fire sources used in the test series. The gas burner, a) and b), was mounted so that only the upper 1 cm was above the floor level. The fire sources made out of fibre board, c) 0.4 kW, d) 1.3 kW and e) 3.2 kW, were wrapped in plastics. They were placed on a piece of aluminium foil to facilitate weighing of the debris after the test. Fire positions To study the effect of the tunnel system and the position of the fire, three different fire positions were used during the test series: 1. End of tunnel A (0.375 m from the end of tunnel A, i.e. x = 0.375 m) 2. End of tunnel B (0.375 m from the end of tunnel B, y = 0.375 m) 3. In middle of tunnel B, i.e. y = 1.5 m The fire positions are also shown in Figure 3.1. Fire position 1 was only used in the tests when only Tunnel A was used. Fire positions 1 and 2 represents a fire near the tunnel face, while position 3 was included to simulate a fire further from the tunnel face and to study the effect if this fire led to rupture of the ventilation tube. 17 3.5 Ventilation The ventilation in the tunnel was arranged in a similar way as in a real tunnel, i.e. by leading the inlet air through a circular tube to a position not far from tunnel face. In this case the tube was made of PVC (PVC-U 50x3.7 DEKADUR) with a outer diameter of 5 cm and inner diameter of 4.2 cm. The end of the tube was positioned 0.75 m from the end of the tunnel (tunnel face). In some tests this was in Tunnel A (if only Tunnel A was used), and in the other tests in Tunnel B (and Tunnel C, if used). In the case when the fire source was placed in position 3 (centre of tunnel B), the air inlet was either at the end of the tube or above the fire. The air flow was achieved using compressed air controlled by a rotameter. In addition to the case without ventilation, four different ventilation flows were used: 1. 2. 3. 4. 5. 0.0 m3/s 0.0001 m3/s (60 m3/min) 0.0002 m3/s (120 m3/min) 0.001 m3/s (600 m3/min) 0.00356 m3/s (2200 m3/min) The values within parentheses is the corresponding value in full scale. In Table 4.1 the ventilation used in each test is presented. 18 4 Experimental procedure In total 36 different experiments were performed. The main parameters varied were the fire position, tunnel geometry, ventilation rate and the position of the ventilation inlet. The conditions in each test are presented in Table 4.1. Table 4.1 Test 1 2 3 4 Summary of the test conditions during the test series Tunnel Fire size Fire position Ventilation Ventilation geometry (kW) (m3/s) (L/s) A 1 A 1 A 1 A 1 5a) A 1 6 A+B 1 a) 7 A+B 1 8 A+B 1 9 A+B 1 10 A+B 1 11 A+B 0.4 12a) A+B 0.4 13 A+B 0.4 14 A+B 1.3 15 A+B 1.3 16 A+B 3.2 17 A+B 3.2 18 A+B 1.3 19 A+B 1.3 20 A+B 3.2 21 A+B 1 22 A+B+C 1 23 A+B+C 1 24b) A+B 1 b) 25 A+B 1.3 26b) A+B 3.2 27d) A 1 28 A 1 b) 29 A+B 1 30b) A+B 1.3 31b) A+B 3.2 32 A+B 1.3 33 A+B 1.3 34 A+B 3.2 35 A+B 1 36c) A 1 a) Repetition test b) Air inlet above the fire c) No slope d) Open also at the lower end End of tunnel A End of tunnel A End of tunnel A End of tunnel A End of tunnel A End of tunnel B End of tunnel B End of tunnel B End of tunnel B End of tunnel B End of tunnel B End of tunnel B End of tunnel B End of tunnel B End of tunnel B End of tunnel B End of tunnel B Centre of tunnel B Centre of tunnel B Centre of tunnel B Centre of tunnel B End of tunnel B Centre of tunnel B Centre of tunnel B Centre of tunnel B Centre of tunnel B End of tunnel A End of tunnel A Centre of tunnel B Centre of tunnel B Centre of tunnel B Centre of tunnel B End of tunnel B End of tunnel B End of tunnel B End of tunnel A 0 0.0001 0.001 0.0002 0.001 0 0 0.0001 0.001 0.0002 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.001 0.001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0 0.00356 0.00356 0.00356 0.00356 0.00356 0.00356 0.00356 0.00356 0 0 0.1 1 0.2 1 0 0 0.1 1 0.2 0.1 0.1 1 0.1 1 0.1 1 0.1 1 1 0.1 0.1 0.1 0.1 0.1 0.1 0 3.56 3.56 3.56 3.56 3.56 3.56 3.56 3.56 0 The tests with fibre board ignition sources were run until the fire self-extinguished. The tests with gas were finished by turning off the gas, except for Test 36 when the fire selfextinguished before the gas was turned off. 19 5 Results Main results and observation are stated in this chapter for the different experiments. The result are divided into different sections dependent of the tunnel geometry and different parameters studied. The chapter contains summaries and comparisons of the results. More comprehensive results are presented in Appendix 1. 5.1 Tunnel A In this section results from “I-shaped” tunnel, tunnel A (see Figure 3.1) are presented. 5.1.1 Ventilation The different ventilation velocities tested in tunnel A were: 0, 0.1, 0.2, 1 and 3.6 L/s, all with a fire size of 1 kW (gas burner). For the oxygen concentration 0.188 m from the fire, on either side, there is no significant difference for four of the ventilation rates (see Figure 5.1). For the high ventilation of 3.56 L/s there is a difference towards the tunnel end, where the O2 concentration decreases down to approximately 20 % compared to 17 % for the other ventilation rates. Towards the tunnel opening the ventilation rate of 1 L/s shows the highest O2 concentration of about 20 %, and not the higher ventilation (3.56 L/s) as would have been expected. A possible explanation for these differences is that different flow patterns occur. The flames are also affected by the flow field, however the complete flow field was not visible during the actual test. O2 concentration at different ventilation rates 0.188m from fire, towards tunnel end 22 Concentration [%] 20 0 L/s 18 0.1L/s 16 0.2L/s 1 L/s 14 3.56 L/s 12 10 8 0 2 4 6 8 10 12 14 16 18 20 Time [min] O2 concentration at different ventilation rates 0.188m from fire, towards tunnel opening Concentration [%] 22 20 0 L/s 18 0.1L/s 0.2 L/s 16 1 L/s 14 3.56 L/s 12 10 8 0 2 4 6 8 10 12 14 16 18 20 Time [min] Figure 5.1 O2 concentration at different ventilation rates, 0.188 m on either side of the fire. Close to the ceiling (13mm) the temperature increases with a decreasing ventilation rate. Closer to the bottom of the tunnel the differences are smaller and a higher ventilation rate gives a higher temperature. A higher ventilation rate results in more mixing which gives a more even temperature distribution across the height of the tunnel. There is no difference between left and right side of the tunnel. Figure 5.2 shows the temperature at the left side of the tunnel 0.188 m from the fire towards the end of the tunnel while Figure 5.3 20 presents the temperature at the left side of the tunnel 0.188 m from the fire towards the tunnel opening. Temperature 13mm from ceiling at different ventilation rates, 0.188m from fire towards tunnel end, left side Temperature [°C] 300 250 0 L/s 200 0.1 L/s 0.2 L/s 150 1 L/s 100 3.56 L/s 50 0 0 2 4 6 8 10 12 14 16 18 20 Time [min] Temperature 50mm from ceiling at different ventilation rates, 0.188m from fire towards tunnel end, left side 300 Temperature [°C] 250 0 L/s 0.1 L/s 200 0.2 L/s 150 1 L/s 100 3.56 L/s 50 0 0 2 4 6 8 10 12 14 16 18 20 Time [min] Temperature 125mm from ceiling at different ventilation rates, 0.188m from fire towards tunnel end, left side Temperature [°C] 300 250 0 L/s 200 0.1 L/s 0.2 L/s 150 1 L/s 100 3.56 L/s 50 0 0 2 4 6 8 10 12 14 16 18 20 Time [min] Figure 5.2 Temperature at the left side of the tunnel at 13 mm, 50 mm and 125 mm from the ceiling, 0.188 m from the fire towards the end of the tunnel. 21 Temperature 13mm from ceiling at different ventilation rates, 0.188m from fire towards tunnel opening, left side 300 Temperature [°C] 250 0 L/s 0.1 L/s 200 0.2 L/s 150 1 L/s 100 3.56 L/s 50 0 0 2 4 6 8 10 12 14 16 18 20 Time [min] Temperature 50mm from ceiling at different ventilation rates, 0.188m from fire towards tunnel opening, left side 300 Temperature [°C] 250 0 L/s 0.1 L/s 200 0.2 L/s 150 1 L/s 100 3.56 L/s 50 0 0 2 4 6 8 10 12 14 16 18 20 Time [min] Temperature 125mm from ceiling at different ventilation rates, 0.188m from fire towards tunnel opening, left side 300 Temperature [°C] 250 0 L/s 0.1 L/s 200 0.2 L/s 150 1 L/s 100 3.56 L/s 50 0 0 2 4 6 8 10 12 14 16 18 20 Time [min] Figure 5.3 5.1.2 Temperature at the left side of the tunnel at 13 mm, 50 mm and 125 mm from the ceiling, 0.188 m from the fire towards the tunnel opening. Open or closed tunnel end One of the experiments in tunnel A was carried out with the lower tunnel end open also. This was made with no ventilation and a fire size of 1 kW. As expected, the O2 concentration 0.188 m from the fire (towards the lower end) was higher in the case when the tunnel end was open on both sides of the fire. At a position 2.5 m from the fire, towards the upper opening there was no difference in the O2 concentration between the two cases. 22 Figure 5.4 O2 concentration for open and closed tunnel at different distances from fire. The temperature 0.188 m from the fire, towards the lower end of the tunnel, is higher when the tunnel is closed than when it is open, in particular close to the ceiling. For the case of an open tunnel the temperature is more even distributed across the tunnel height. Towards the upper tunnel opening, the temperature is fluctuating much more when the lower tunnel end is open than when it is closed. Close to the ceiling and close to the floor there is no great temperature difference for the open and closed tunnel, but in the centre the temperature is higher for an open tunnel. 23 Figure 5.5 Temperature at different distances from ceiling for open and closed tunnel. 5.1.3 With and without slope Tunnel A was tested both horizontally, i.e. without slope, and with an inclination of 10°. In the two cases compared in this section, the forced ventilation was turned off and the lower end of the tunnel was closed. In Figure 5.6 the O2 concentrations at different positions are presented for the two cases. It can be seen that the oxygen concentration decreased rapidly in the case of no slope compared to the tunnel with a slope. When the concentration reached approximately 11 %, the fire was extinguished and the oxygen concentration started to increase. Closer to the tunnel opening, 2.5 m from the fire, no decrease is seen of the oxygen concentration for the tunnel without slope. 24 Figure 5.6 O2 concentration for tunnel with and without slope. When there is no slope, the temperature increases rapidly close to the ceiling and then decreases after the fire has self-extinguished (see Figure 5.7). Closer to the floor the temperature increase is much smaller, but similar to that close to the ceiling. In the case of the tunnel with a slope, the temperature increase is not as great closest to the ceiling. Closer to the floor the initial part of the temperature curves are similar for the two cases. The difference close to the ceiling is probably due to differences in position of the flame. 25 Figure 5.7 Temperature at different distances from ceiling for open and closed tunnel. 5.2 Tunnel A+B The main geometry during the test series was the access tunnel A connected to the perpendicular tunnel B. 5.2.1 Ventilation In this section the results for the five different ventilation cases (0, 0.1, 0.2, 1.0 and 3.56 L/s) are presented. In Figure 5.8 the O2 concentrations for different ventilation rates are compared. For the lower ventilation rates the oxygen concentration quickly decreases and the fire self-extinguished. After extinguishment, the oxygen concentration increased again. For a ventilation rate of 1 L/s, the fire burned well and for a long period of time. For the highest ventilation rate we also observe the highest level of oxygen. 26 For the rate 1 L/s the O2 concentration goes down to approximately 16 % 0.188 m from the fire towards the tunnel end and 2.5 m from fire, towards tunnel opening. At the location 0.188 m from fire towards the opening, however, the O2 concentration only decreases to just below 20 %. This could be due to a particular flow pattern, and one indicator of such a flow pattern in this experiment was that the smoke at the exit was quite cold and thus low. However, during the experiment particular flow patterns could not be observed due to lack of smoke (the flame gave no indication of clear differences between the tests). Figure 5.8 O2 concentration at different ventilation rates. Fire in position 2. The temperature at different heights from the ceiling for the different ventilation rates can be seen in Figure 5.9. Close to the ceiling the temperature is higher towards the tunnel opening than towards the tunnel end, in particular for the highest ventilation rate (3.56 L/s). Closer to the floor there is no significant difference between the two positions. 27 Figure 5.9 Temperature at different distances from ceiling for different ventilation rates, at two different positions near the fire. 5.2.2 Fire size The fire size was varied from 0.4 kW up to 3.2 kW. The fire size of 1 kW was produced by a gas burner. In this section results from tests with different fire sizes are compared. The oxygen concentration is shown in Figure 5.10. It can be seen that close to the fire, towards the tunnel opening, there is no significant change in the oxygen concentration. At the same distance, towards the tunnel end, the difference is much larger. This is due to the position of the air inlet and the flow pattern in the tunnel. 28 Figure 5.10 O2 concentration for different fire sizes. The temperature at different distances from the ceiling, 0.188 m on either side of the fire is shown in Figure 5.11. As expected the temperature is much higher for the larger fire sizes. The temperatures gradients at the two different sides of the fire are similar to each other, with the largest difference in the beginning of the tests. Figure 5.11 Temperature at different distances from the ceiling for different fire sizes. 29 5.2.3 Air inlet above the fire The air inlet tube, guiding the air to a position near the end of the tunnel, is often made of plastic in real tunnel construction. In case of a fire such a ventilation tube could burst. It was therefore interesting to study what consequences could be expected from such a situation. In this section results for cases with different position of air inlet are compared. Two different ventilation conditions are presented: one with 3.56 L/s (Figure 5.13) and one with 0.1 L/s (Figure 5.14). For each case, graphs for three different positions for the O2 sampling are included: 0.187 m from the tunnel end (Pos 21), 0.563 m from the tunnel end (Pos 27), and 0.188 m from the fire (towards the tunnel opening; Pos 27 and 38, respectively), see Figure 5.12 and Table 3.1. This means that in the first and second graph “Centre” and “End” correspond to the same position of the O2 sampling, while in the third case the positions are different since they are related to the position of the fire and not the tunnel end. “Centre” refers to fire position 3 and “End” refers to fire position 2. In each graph results for three fire sizes (1 kW, 1.3 kW and 3.2 kW) are included. For the tests presented in Figure 5.13 and Figure 5.14, there was a hole in the tube above fire position 3, when the fire was in position 3 (but not when the fire was in position 2). 38 27 3 Figure 5.12 21 2 Positions of O2 sampling (21, 27 and 38) in relation to position of fire (2 and 3). There are differences between the two ventilation rates. Starting with 3.56 L/s, for the two cases with sampling position measured from the tunnel end the fire near the end of the tunnel gave lower O2 concentration than the corresponding cases with the fire in the centre of the tunnel. The lowest values were measured near the tunnel end. For the case with sampling 0.188 m from the fire it is interesting to note that the results for each pair of fire size are almost identical to each other. The results indicate that the fire controls much of the flow pattern and the conditions near the fire. For the high ventilation rate much of the inlet air reaches the end of the tunnel despite the hole in the tube. 30 Figure 5.13 O2 concentration at different positions (a. 21, b. 27, c. 38 and 27) for different positions of the fire, different fire sizes and an airflow of 3.56 L/s. When the fire was in the “Centre” there was a hole in the tube above the fire. For the case with 0.1 L/s the results look different. In almost all cases the O2 concentrations for the centre fire position are lower than the corresponding case near the end of the tunnel. Overall the concentrations are significantly lower than the 3.56 L/s case above. Note that some of the fires were self-extinguished earlier than in the free-burning case (see Table 5.1). 31 Figure 5.14 5.2.4 O2 concentration at different positions (a. 21, b. 27, c. 38 and 27) for different positions of the fire, different fire sizes and an airflow of 0.1 L/s. When the fire was in the “Centre” there was a hole in the tube above the fire. Fire position In this section results for two different fire positions are compared, end of tunnel B (Pos 2) and centre of tunnel B (Pos 3). The air inlet was in all these cases through the end of the tube near the end of the tunnel, contrary to Section 5.2.3 where there was a hole above the fire when the fire was positioned at the centre (Pos 3). In Figure 5.15 results for 0.1 L/s are presented and in Figure 5.16 for 1 L/s. For 0.1 L/s the O2 concentrations 0.187 from the tunnel end are relatively similar for the two fire positions. The difference is much larger when the air flow rate is 1 L/s, where the concentration for the fire in Pos 2 is significantly lower than the corresponding one when the fire is in Pos 3. For sampling position 27 (0.563 m from the tunnel end) the situation 32 the opposite. Here the concentration are very similar for 1 L/s, while for 0.1 L/s the O2 concentration is lower when the fire (1.3 kW) is in position 3 than in Pos 2. When the gas sampling is made 0.188 m from the fire (Pos 27 or 38), the O2 concentration is lower when the fire is in the centre, both for 0.1 L/s and 1 L/s. Figure 5.15 O2 concentration at different positions (a. 21, b. 27, c. 38 and 27) for different positions of the fire, different fire sizes and an airflow of 0.1 L/s. 33 Figure 5.16 5.3 O2 concentration at different positions (a. 21, b. 27, c. 38 and 27) for different positions of the fire, different fire sizes and an airflow of 1 L/s. Tunnel A, A+B, A+B+C The results obtained using tunnel A+B+C show no significant difference compared to when Tunnel A+B was used. The fire does not really “see” the extra space. However compared to tunnel A there is a significant difference in both temperature and oxygen rate and, as can be seen in Figure 5.17 and Figure 5.18. When the fire is positioned in tunnel B the oxygen rate is much lower. For the sampling position 0.188 m from the fire towards the tunnel opening there is a difference between Tunnel A+B and Tunnel A+B+C. For the temperature there is a difference in the position towards the tunnel end, but not as large as the difference compared to Tunnel A. Note also the fire burned completely differently in Tunnel A. 34 Figure 5.17 Comparison of temperature measurements near the fire in three different tunnel geometries. Figure 5.18 Comparison of O2 concentration measurements near the fire in three different tunnel geometries. 35 5.4 Self-extinguished fires In many of the test cases, the oxygen concentration decreased to such a low level that the fire was self-extinguished. In Table 5.1 a summary of the conditions where this occurred is presented. In the table some cases when the fire was extinguished later than the time reach in the free-burn test (see Table 3.2) are also included; these are given in italics. The mass consumed during a test is also included, when available. In some cases the mass loss continued long after the fire (flame) was extinguished and no exact mass loss could be presented. Table 5.1 Test case Summary over all case where the fire was self-extinguished. Fire Ventilation Expected Tunnel Fire Time when Consumed size position (L/s) extinguish extinguished massa) (g) (kW) time (min:sec) (min:sec) 6 A+B 1 2 0 Never 7 A+B 1 2 0.1 Never 8 A+B 1 2 0.1 Never 10 A+B 1 2 0.2 Never 11 A+B 0.4 2 0.1 2:00 12 A+B 0.4 2 0.1 2:00 13 A+B 0.4 2 1 2:00 14 A+B 1.3 2 0.1 4:10 15 A+B 1.3 2 1 4:10 16 A+B 3.7 2 0.1 5:00 17 A+B 3.7 2 1 5:00 18 A+B 1.3 3 0.1 4:10 19 A+B 1.3 3 1 4:10 20 A+B 3.7 3 1 5:00 21 A+B 1 3 0.1 Never 22 A+B+C 1 2 0.1 Never 23 A+B+C 1 3 0.1 Never 24 A+B 1 3 0.1 Never 25 A+B 1.3 3 0.1 4:10 26 A+B 3.7 3 0.1 5:00 30 A+B 1.3 3 3.56 4:10 31 A+B 3.7 3 3.56 5:00 32 A+B 1.3 3 3.56 4:10 33 A+B 1.3 2 3.56 4:10 34 A+B 3.7 2 3.56 5:00 36b) A 1 1 0 Never a) Value within parentheses represents mass before test. b) No Slope c) Mass continued to decrease also after extinguishment. NA = Not available 2:37 2:41 2:39 2:53 2:41 2:20 2:30 2:24 5:12 2:03 7:39 2:53 3:56 6:16 2:27 2:46 2:55 3:02 4:01 2:23 4:11 5.56 6:54 4:13 6:31 2:32 NA 0.7 (0.7) 0.6 (0.7) 5c) (9.3) 7.8 (9.4) 7.2 (82.8) NAc) 6.7 (9.2) 7.3 (9.2) NAc) 6.8 (9.0) NAc) NA 41 (82.9) 6.7 (9.5) 6 (9.2) 30.4 (82.8) - Observe that in tests 29 and 35 the burner was turned off and the fire did not selfextinguish as might be concluded from looking at the graphs. It can be can observed that all times when the fire did self-extinguish, the ventilation rate was very low. Furthermore the fire is placed in Tunnel B in all cases except for test 36, which was different to all other tests as it did not have any inclination, i.e. Tunnel A was horizontal. It can also be 36 noted that when the fire size is 0.4 kW it is not extinguished even though the ventilation rate is low (0.1 L/s in test 11 and 12) 37 6 Discussion In the test series a scale model was used. It was constructed as an access tunnel (10°) reaching a horizontal T-shaped tunnel. In a real construction situation the tunnel system can be very complicated and will vary from site to site. The number of tunnels starting from the bottom of the access tunnel as well as the lengths of each tunnel will be site specific. However, generally the basic concept is similar, i.e. a sloping access tunnel is constructed to reach a starting point for horizontal tunnels (these tunnels can of course also have a slope), each with a closed end before the breakthrough. Therefore, the general trends and conclusions should be valid. Similarly, the installations for “comfort” ventilation might vary between different sites, but a very common way to solve the issue is to guide the inlet air through large tubes near the ceiling from large fans outside to a position near the work site at the closed tunnel end. The ventilation affects both the flow pattern and the development of the fire. A large fire might have the power to start a circulation of the air all the way from the opening, while a smaller fire will not. If the ventilation rate is low this could lead to selfextinguishment of the fire. Further, the ventilation creates a flow near the ceiling. Therefore, the ventilation affects the flow pattern and together with the forces from the fire, creates a circulation “behind” the fire. This in turn leads to a recirculation of vitiated fire products. The consumption of oxygen together with the recirculation of vitiated products can also cause the fires to selfextinguish. The flames try to find oxygen and it was observed in some cases during the test series how the flames extended into the ventilation tube in search of oxygen in the entering fresh air. For these reasons (availability of oxygen and flow pattern) the position and flow rate of the ventilation are important for the conditions during a fire in a tunnel under construction. During the test series, the effect of a simulated hole (caused by the fire) on the ventilation tube was also studied. An effect could be seen, which might have been larger if it had been combined with an obstruction of the ventilation tube after the hole. This was, however, not tested during the test series. 38 7 Conclusions The report describes a series of model scale tests in scale 1:40 describing the situation before breakthrough in a tunnel during construction. The tunnel was constructed as an access tunnel (10°) reaching a horizontal T-shaped tunnel. In a real construction situation the tunnel system can be very complicated and will vary from site to site. The number of tunnels starting from the bottom of the access tunnel will be site dependent and vary. However, generally the basic concept is similar, i.e. a sloping access tunnel is constructed to reach a starting point for more horizontal tunnels (these tunnels can of course also have a slope) with closed end before the breakthrough. Therefore, the general trends and conclusions should be valid. The “comfort” ventilation will also vary between different sites, but a very common way to solve the issue is to guide the inlet air through large tubes near the ceiling from large fans outside to a position near the work site at the closed tunnel end. The ventilation therefore affects both the flow pattern in the tunnel and the development of the fire. Ventilation before breakthrough consists of mechanical comfort ventilation and after breakthrough is dominated by natural ventilation. Comfort ventilation transports fresh air through the ventilation pipes of plastic to the workplace where drill or blasting is carried out (at the dead end). The fresh air is in turn, transported back from the workplace to the tunnel portal. The model scale experiments show that if the fire occurs before the breakthrough and the fire is small (a few MW) it will be difficult to obtain fresh air from the entrance. Therefore the fire is totally dependent on the oxygen delivered by the comfort ventilation system. If the comfort ventilation is shut off, the consequences will be that the fire decreases in intensity and finally extinguishes due to lack of oxygen caused by consumption of oxygen and recirculation of vitiated products back to the fire. A large fire might have the power to induce circulation of the air all the way from the opening, while a smaller fire will not. If the ventilation rate is low this could result in selfextinguishment of the fire. The ventilation creates a flow near the ceiling. This affects the flow pattern and together with the forces from the fire, creates a circulation “behind” the fire. It was observed that when the fire self-extinguished, the ventilation rate was very low. In many of the test cases, the oxygen concentration decreased to such a low level that the fire was self-extinguished. The results for tunnel A+B+C showed no significant difference compared to when Tunnel A+B was used, i.e. the fire does not really “see” the extra space. However, compared to tunnel A there was a significant difference in both temperature and oxygen rate. When the fire was positioned in tunnel B the oxygen rate was much lower. For the sampling position 0.188 m from the fire towards the tunnel opening there was a difference between Tunnel A+B and Tunnel A+B+C. For the temperature there was a difference in the position towards the tunnel end, but not as large as the difference compared to Tunnel A. 39 8 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. References Ingason, H., Lönnermark, A., Frantzcih, H., and Kumm, M., "Fire incidents during construction work of tunnels", SP Technical Research Institute of Sweden, SP Report 2010:83, Borås, Sweden, 2010. Lönnermark, A., and Ingason, H., "Fire Spread in Large Industrial Premises and Warehouses", SP Swedish National Testing and Research Institute, SP Report 2005:21, Borås, Sweden, 2005. Larsson, I., Ingason, H., and Arvidson, M., "Model Scale Fire Tests on a Vehicle Deck on Board a Ship", SP Swedish National Testing and Research Institute, SP Report 2002:05, Borås, Sweden, 2002. Ingason, H., "Small Scale Test of a Road Tanker Fire", International Conference on Fires in Tunnels, pp. 238-248, Borås, Sweden, October 10-11, 1994. Ingason, H., Wickström, U., and van Hees, P., "The Gothenburg Discoteque Fire Investigation", 9th International Fire Science & Engineering Conference (Interflam 2001), 965-976, Edinburg, Scotland, 17-19 September, 2001. Ingason, H., "Model Scale Tunnel Fire Tests - Longitudinal ventilation", SP Swedish National Testing and Research Institute, SP REPORT 2005:49, Borås, Sweden, 2005. Ingason, H., "Model Scale Tunnel Fire Tests - Sprinkler", SP Technical Research Institute of Sweden, 2006:56, 2006. Lönnermark, A., and Ingason, H., "The Effect of Cross-sectional Area and Air Velocity on the Conditions in a Tunnel during a Fire", SP Technical Research Institute of Sweden, SP Report 2007:05, Borås, Sweden, 2007. Ingason, H., "Model scale tunnel tests with water spray", Fire Safety Journal, 43, 7, pp 512-528, 2008. Lönnermark, A., and Ingason, H., "The Influence of Tunnel Cross Section on Temperatures and Fire Development", 3rd International Symposium on Safety and Security in Tunnels (ISTSS 2008), 149-161, Stockholm, Sweden, 12-14 March, 2008. Lönnermark, A., and Ingason, H., "The Effect of Air Velocity on Heat Release Rate and Fire Development during Fires in Tunnels", 9th International Symposium on Fire Safety Science, pp 701-712, Karlsruhe, Germany, 21-26 September 2008. Ingason, H., and Lönnermark, A., "Effects of longitudinal ventilation on fire growth and maximum heat release rate", Proceedings from the Fourth International Symposium on Tunnel Safety and Security, pp 395-406, Frankfurt am Main, Germany, 17-19 March, 2010. Lönnermark, A., and Ingason, H., "Fire spread between industry premises", SP Technical Research Institute of Sweden, SP Report 2010:18, Borås, Sweden, 2010. Heskestad, G., "Modeling of Enclosure Fires", Proceedings of the Fourteenth Symposium (International) on Combustion, 1021-1030, The Pennsylvania State University, USA, August, 1972. Quintiere, J. G., "Scaling Applications in Fire Research", Fire Safety Journal, 15, 3-29, 1989. Saito, N., Yamada, T., Sekizawa, A., Yanai, E., Watanabe, Y., and Miyazaki, S., "Experimental Study on Fire Behavior in a Wind Tunnel with a Reduced Scale Model", Second International Conference on Safety in Road and Rail Tunnels, 303-310, Granada, Spain, 3-6 April, 1995. Heskestad, G., "Physical Modeling of Fire", Journal of Fire & Flammability, 6, p. 253 - 273, 1975. 40 Appendix 1 Time-resolved graphs In this section graphs from each test are presented. The position in the tunnel is described by a x or y coordinate, where x = 0 is at the end of tunnel A and y = 0 is the end of tunnel B (see Figure 3.1). The descriptions “Left” and “Right” are defined by looking from the fire towards the opening. These positions are 50 mm from the centreline. In one graph the temperatures at different distances relative to the fire are compared. Gas analysis The gas concentrations are measured at three positions, all at a height of 0.75 m, which is half the tunnel height. Two gas analysers are placed at 0.187 m and 0.563 m from the end of the tunnel. When the fire is placed in the end of the tunnel (position 1 and 2) these positions represent a distance of 0.188 m before and after the fire. A third position of measurement at 2.875 m from the end of the tunnel in tunnel A and 1.687 from the end of the tunnel in tunnel B is also used. Comparison of thermocouples At two locations in each tunnel, two different kinds of thermocouples where used at the same position, with diameters 0.8 mm and 0.25 mm, these are marked with “TC 0.8” and “TC 0.25”. At all other positions, thermocouples with a diameter of 0.25 mm were used. Some of the positions with thermocouples of different size were relatively close to the fire and there the effect of the radiation from the fire can be seen. 41 Test 1 - Tunnel A CO concentration Tunnel A O2 concentration Tunnel A 0.1 0.09 20 18 Ch 113; x = 0.187m 16 Ch 116; x = 0.563m 14 Ch 108; x = 2.875m 12 Concentration [vol-%] Concentration [vol-%] 22 10 0.08 0.07 0.06 Ch 114; x = 0.187m 0.05 Ch 117; x = 0.563m 0.04 Ch 119; x = 2.875m 0.03 0.02 0.01 0 8 0 5 10 15 0 20 5 10 CO2 concentration Tunnel A 20 Tunnel A: Temperature at position of fire, 13mm from ceiling 3 800 700 2.5 2 Ch 115; x = 0.187m 1.5 Ch 118; x = 0.563m Ch 120; x = 2.875m 1 Temperature [°C] Concentration [vol-%] 15 Time [min] Time [min] 0.5 600 500 Left 400 Centre 300 Right 200 100 0 0 0 5 10 15 0 20 5 10 15 20 Time [min] Time [min] Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at 13mm from ceiling, left 250 80 70 0.5m from fire 1m from fire 150 1.125m from fire 1.5m from fire 100 2m from fire 2.5m from fire 50 Temperature [°C] Temperature [°C] 200 60 50 x = 0.187m 40 x = 0.563m 30 20 10 0 0 0 5 10 15 20 0 5 Time [min] 100 90 80 70 60 50 40 30 20 10 0 TC 0.25mm TC 0.8mm 5 10 Time [min] 15 20 Tunnel A: Comparison of temperature from two different thermocouples at x = 0.563m, 75mm from ceiling. 15 20 Temperature [°C] Temperature [°C] Tunnel A: Comparison of temperature from two different thermocouples at x = 0.187m, 75mm from ceiling. 0 10 Time [min] 100 90 80 70 60 50 40 30 20 10 0 TC 0.25mm TC 0.8mm 0 5 10 Time [min] 15 20 42 Test 1 – Tunnel A Tunnel A: Temperature at x = 0.187m, left Tunnel A: Temperature at x = 0.187m, right 300 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 5 10 15 0 20 5 Tunnel A: Temperature at x = 0.563m, left 15 20 Tunnel A: Temperature at x = 0.563m, right 300 300 250 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 Temperature [°C] Temperature [°C] 10 Time [min] Time [min] 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 0 0 0 5 10 Time [min] 15 20 0 5 10 Time [min] 15 20 43 Test 2 - Tunnel A O2 concentration Tunnel A CO concentration Tunnel A 0.25 20 18 Ch 113; x = 0.187m 16 Ch 116; x = 0.563m 14 Ch 108; x = 2.875m 12 Concentration [vol-%] Concentration [vol-%] 22 0.2 0.15 Ch 114; x = 0.187m Ch 117; x = 0.563m 0.1 Ch 119; x = 2.875m 0.05 10 0 8 0 5 10 15 0 20 5 10 15 20 Time [min] Time [min] CO2 concentration Tunnel A Tunnel A: Temperature at position of fire, 13mm from ceiling 2.5 800 Ch 115; x = 0.187m 1.5 Ch 118; x = 0.563m Ch 120; x = 2.875m 1 Temperature [°C] Concentration [vol-%] 700 2 0.5 600 500 Left 400 Centre 300 Right 200 100 0 0 0 5 10 15 0 20 5 10 15 20 Time [min] Time [min] Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at 13mm from ceiling, left 250 100 90 0.5m from fire 1m from fire 150 1.125m from fire 1.5m from fire 100 2m from fire 2.5m from fire 50 80 Temperature [°C] Temperature [°C] 200 70 60 x = 0.187m 50 x = 0.563m 40 30 20 10 0 0 0 5 10 15 20 0 5 Time [min] 100 90 80 70 60 TC 0.25mm 50 40 30 20 10 0 TC 0.8mm 5 10 Time [min] 15 20 Tunnel A: Comparison of temperature from two different thermocouples at x = 0.563m, 75mm from ceiling. 15 20 Temperature [°C] Temperature [°C] Tunnel A: Comparison of temperature from two different thermocouples at x = 0.187m, 75mm from ceiling. 0 10 Time [min] 100 90 80 70 60 50 40 30 20 10 0 TC 0.25mm TC 0.8mm 0 5 10 Time [min] 15 20 44 Test 2 – Tunnel A Tunnel A: Temperature at x = 0.187m, right Tunnel A: Temperature at x = 0.187m, left 300 300 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 5 10 15 0 20 5 15 20 Tunnel A: Temperature at x = 0.563m, right Tunnel A: Temperature at x = 0.563m, left 300 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 Temperature [°C] 250 Temperature [°C] 10 Time [min] Time [min] 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 0 0 0 5 10 Time [min] 15 20 0 5 10 Time [min] 15 20 45 Test 3 - Tunnel A CO concentration Tunnel A 0.3 20 0.25 18 Ch 113; x = 0.187m 16 Ch 116; x = 0.563m 14 Ch 108; x = 2.875m 12 Concentration [vol-%] Concentration [vol-%] O2 concentration Tunnel A 22 0.2 Ch 114; x = 0.187m Ch 117; x = 0.563m 0.15 Ch 119; x = 2.875m 0.1 0.05 10 0 8 0 0 5 10 15 5 10 20 15 20 Time [min] Time [min] Tunnel A: Temperature at position of fire, 13mm from ceiling CO2 concentration Tunnel A 1000 3 800 2 Ch 115; x = 0.187m 1.5 Ch 118; x = 0.563m Ch 120; x = 2.875m 1 Temperature [°C] Concentration [vol-%] 900 2.5 700 600 Left 500 Centre 400 Right 300 200 0.5 100 0 0 0 5 10 15 20 0 5 Time [min] 10 15 20 Time [min] Tunnel A: Temperature at 13mm from ceiling, left Tunnel A: Temperature at 75mm from ceiling, centre 250 100 90 0.5m from fire 1m from fire 150 1.125m from fire 1.5m from fire 100 2m from fire 2.5m from fire 50 80 Temperature [°C] Temperature [°C] 200 70 60 x = 0.187m 50 x = 0.563m 40 30 20 10 0 0 0 5 10 15 20 0 5 Time [min] Tunnel A: Comparison of temperature from two different thermocouples at x = 0.187m, 75mm from ceiling. 15 20 Tunnel A: Comparison of temperature from two different thermocouples at x = 0.563m, 75mm from ceiling. 120 120 100 100 80 TC 0.25mm 60 TC 0.8mm 40 Temperature [°C] Temperature [°C] 10 Time [min] 80 TC 0.25mm 60 TC 0.8mm 40 20 20 0 0 0 5 10 Time [min] 15 20 0 5 10 Time [min] 15 20 46 Test 3 – Tunnel A Tunnel A: Temperature at x = 0.187m, right Tunnel A: Temperature at x = 0.187m, left 350 350 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 300 50 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 0 0 0 5 10 15 20 0 5 Time [min] 15 20 Tunnel A: Temperature at x = 0.563m, right Tunnel A: Temperature at x = 0.563m, left 350 350 300 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 125mm from ceiling 100 Temperature [°C] Temperature [°C] 10 Time [min] 250 13mm from ceiling 50mm from ceiling 200 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 5 10 Time [min] 15 20 0 5 10 Time [min] 15 20 47 Test 4 - Tunnel A CO concentration Tunnel A 0.14 20 0.12 18 Ch 113; x = 0.187m 16 Ch 116; x = 0.563m 14 Ch 108; x = 2.875m 12 Concentration [vol-%] Concentration [vol-%] O2 concentration Tunnel A 22 0.1 Ch 114; x = 0.187m 0.08 Ch 117; x = 0.563m 0.06 Ch 119; x = 2.875m 0.04 0.02 10 0 8 0 5 10 15 0 20 5 10 20 Tunnel A: Temperature at position of fire, 13mm from ceiling CO2 concentration Tunnel A 2.5 800 700 2 Ch 115; x = 0.187m 1.5 Ch 118; x = 0.563m Ch 120; x = 2.875m 1 0.5 Temperature [°C] Concentration [vol-%] 15 Time [min] Time [min] 600 500 Left 400 Centre 300 Right 200 100 0 0 0 5 10 15 20 0 5 Time [min] 10 15 20 Time [min] Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at 13mm from ceiling, left 100 250 90 0.5m from fire 1m from fire 150 1.125m from fire 1.5m from fire 100 2m from fire 2.5m from fire 50 80 Temperature [°C] Temperature [°C] 200 70 60 x = 0.187m 50 x = 0.563m 40 30 20 10 0 0 0 5 10 15 20 0 5 Time [min] Tunnel A: Comparison of temperature from two different thermocouples at x = 0.187m, 75mm from ceiling. 15 20 Tunnel A: Comparison of temperature from two different thermocouples at x = 0.563m, 75mm from ceiling. 100 100 90 90 80 80 70 60 TC 0.25mm 50 TC 0.8mm 40 30 20 Temperature [°C] Temperature [°C] 10 Time [min] 70 60 TC 0.25mm 50 TC 0.8mm 40 30 20 10 10 0 0 0 5 10 Time [min] 15 20 0 5 10 Time [min] 15 20 48 Test 4 – Tunnel A Tunnel A: Temperature at x = 0.187m, right Tunnel A: Temperature at x = 0.187m, left 300 300 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 5 10 15 0 20 5 15 20 Tunnel A: Temperature at x = 0.563m, right Tunnel A: Temperature at x = 0.563m, left 300 300 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 Temperature [°C] 250 Temperature [°C] 10 Time [min] Time [min] 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 0 0 0 5 10 Time [min] 15 20 0 5 10 Time [min] 15 20 49 Test 5 - Tunnel A O2 concentration Tunnel A CO concentration Tunnel A 0.2 0.18 20 18 Ch 113; x = 0.187m 16 Ch 116; x = 0.563m 14 Ch 108; x = 2.875m 12 Concentration [vol-%] Concentration [vol-%] 22 10 0.16 0.14 0.12 Ch 114; x = 0.187m 0.1 Ch 117; x = 0.563m 0.08 Ch 119; x = 2.875m 0.06 0.04 0.02 0 8 0 5 10 15 0 20 5 10 15 20 Time [min] Time [min] Tunnel A: Temperature at position of fire, 13mm from ceiling CO2 concentration Tunnel A 1000 3 800 2 Ch 115; x = 0.187m Ch 118; x = 0.563m 1.5 Ch 120; x = 2.875m 1 Temperature [°C] Concentration [vol-%] 900 2.5 700 600 Left 500 Centre 400 Right 300 200 0.5 100 0 0 0 5 10 15 20 0 5 Time [min] 10 15 20 Time [min] Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at 13mm from ceiling, left 250 100 90 0.5m from fire 1m from fire 150 1.125m from fire 1.5m from fire 9. 100 2m from fire 2.5m from fire 50 80 Temperature [°C] Temperature [°C] 200 70 60 x = 0.187m 50 x = 0.563m 40 x = 2.875m 30 20 10 0 0 0 5 10 15 20 0 5 Time [min] Tunnel A: Comparison of temperature from two different thermocouples at x = 0.187m, 75mm from ceiling. 15 20 Tunnel A: Comparison of temperature from two different thermocouples at x = 0.563m, 75mm from ceiling. 120 120 100 100 80 TC 0.25mm 60 TC 0.8mm 40 20 Temperature [°C] Temperature [°C] 10 Time [min] 80 TC 0.25mm 60 TC 0.8mm 40 20 0 0 0 5 10 Time [min] 15 20 0 5 10 Time [min] 15 20 50 Test 5 – Tunnel A Tunnel A: Temperature at x = 0.187m, left Tunnel A: Temperature at x = 0.187m, right 300 300 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 5 10 15 0 20 5 15 20 Tunnel A: Temperature at x = 0.563m, right Tunnel A: Temperature at x = 0.563m, left 300 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling Temperature [°C] 250 Temperature [°C] 10 Time [min] Time [min] 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 5 10 Time [min] 15 20 0 5 10 Time [min] 15 20 51 Test 6 – Tunnel A+B CO concentration Tunnel B 0.3 20 0.25 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.688m 12 Concentration [vol-%] Concentration [vol-%] O2 concentration Tunnel B 22 10 0.2 Ch 114; y = 0.187m 0.15 Ch 117; y = 0.563m Ch 119; y = 1.688m 0.1 0.05 0 8 0 1 2 3 4 0 5 1 2 3 4 5 Time [min] Time [min] Tunnel B: Temperature at position of fire, 13mm from ceiling CO2 concentration Tunnel B 1000 6 800 4 Ch 115; y = 0.187m 3 Ch 118; y = 0.563m Ch 120; y = 1.688m 2 Temperature [°C] Concentration [vol-%] 900 5 700 600 Left 500 Centre 400 Right 300 200 1 100 0 0 0 1 2 3 4 5 0 1 2 Time [min] 3 4 5 Time [min] Tunnel B: Temperature at 75mm from ceiling, centre Tunnel B: Temperature at 13mm from ceiling, left 250 50 45 0.5m from fire 1m from fire 150 1.5m from fire 2m from fire 100 2.5m from fire 3.75m from fire 50 40 Temperature [°C] Temperature [°C] 200 35 y = 0.187m 30 y = 0.563m 25 y = 1.313m 20 y = 1.688m 15 10 5 0 0 0 1 2 3 4 0 5 1 3 4 5 Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. 30 30 25 25 20 TC 0.25mm 15 TC 0.8mm 10 Temperature [°C] Temperature [°C] 2 Time [min] Time [min] 20 TC 0.25mm 15 TC 0.8mm 10 5 5 0 0 0 1 2 3 Time [min] 4 5 0 1 2 Time [min] 3 4 5 52 Test 6 – Tunnel A+B Tunnel B: Temperature at y = 0.563m, centre Tunnel B: Temperature at y = 0.187m, centre. 350 350 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 300 250 13mm from ceiling 50mm from ceiling 200 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 1 2 3 4 0 5 1 Tunnel B: Temperature at y = 1.313m, left 5 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 125mm from ceiling 100 Temperature [°C] Temperature [°C] 4 350 300 50 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 0 0 0 1 2 3 4 5 0 1 Time [min] 2 3 4 5 Time [min] Tunnel B: Temperature at y = 1.688m, right Tunnel B: Temperature at y = 1.688m, left 350 350 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 125mm from ceiling 100 Temperature [°C] 300 Temperature [°C] 3 Tunnel B: Temperature at y = 1.313m, right 350 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 1 2 3 4 0 5 1 2 3 4 5 Time [min] Time [min] Tunnel A: Temperature at x = 0.187m, left Tunnel A: Temperature at 75mm from ceiling, centre 25 25 20 20 x = 0.187m 15 x = 0.563m x = 2.875m 10 Temperature [°C] Temperature [°C] 2 Time [min] Time [min] 13mm from ceiling 50mm from ceiling 15 75mm from ceiling 10 100mm from ceiling 125mm from ceiling 5 5 0 0 0 1 2 3 Time [min] 4 5 0 1 2 3 Time [min] 4 5 53 Test 7 – Tunnel A+B CO concentration Tunnel B O2 concentration Tunnel B 0.25 20 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.688m 12 Concentration [vol-%] Concentration [vol-%] 22 10 0.2 0.15 Ch 114; y = 0.187m Ch 117; y = 0.563m 0.1 Ch 119; y = 1.668m 0.05 0 8 0 1 2 3 4 0 5 1 2 3 4 5 Time [min] Time [min] CO2 concentration Tunnel B Tunnel B: Temperature at position of fire, 13mm from ceiling 1000 6 800 4 Ch 115; y = 0.187m 3 Ch 118; y = 0.563m Ch 120; y = 1.668m 2 Temperature [°C] Concentration [vol-%] 900 5 700 600 Left 500 Centre 400 Right 300 200 1 100 0 0 0 1 2 3 4 5 0 1 2 Time [min] Tunnel B: Temperature at 13mm from ceiling, left 5 70 0.5m from fire 1m from fire 150 1.5m from fire 2m from fire 100 2.5m from fire 3.75m from fire 50 Temperature [°C] 60 200 Temperature [°C] 4 Tunnel B: Temperature at 75mm from ceiling, centre 250 50 y = 0.187m 40 y = 0.563m y = 1.313m 30 y = 1.688m 20 10 0 0 0 1 2 3 4 0 5 1 2 Time [min] 3 4 5 Time [min] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. 30 30 25 25 20 TC 0.25mm 15 TC 0.8mm 10 5 Temperature [°C] Temperature [°C] 3 Time [min] 20 TC 0.25mm 15 TC 0.8mm 10 5 0 0 0 1 2 3 Time [min] 4 5 0 1 2 3 Time [min] 4 5 54 Test 7 – Tunnel A+B Tunnel B: Temperature at y = 0.563m, centre Tunnel B: Temperature at y = 0.187m, centre. 350 350 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 125mm from ceiling 100 Temperature [°C] Temperature [°C] 300 250 13mm from ceiling 50mm from ceiling 200 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 1 2 3 4 0 5 1 2 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling Temperature [°C] 300 Temperature [°C] 5 350 350 50 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 125mm from ceiling 100 50 0 0 0 1 2 3 4 5 0 1 2 Time [min] 3 4 5 Time [min] Tunnel B: Temperature at y = 1.688m, left Tunnel B: Temperature at y = 1.688m, right 350 350 300 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 125mm from ceiling 100 Temperature [°C] Temperature [°C] 4 Tunnel B: Temperature at y = 1.313m, right Tunnel B: Temperature at y = 1.313m, left 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 1 2 3 4 0 5 1 2 3 4 5 Time [min] Time [min] Tunnel A: Temperature at x = 0.187m, left Tunnel A: Temperature at 75mm from ceiling, centre 25 25 20 x = 0.187m 15 x = 0.563m x = 2.875m 10 Temperature [°C] 20 Temperature [°C] 3 Time [min] Time [min] 13mm from ceiling 50mm from ceiling 15 75mm from ceiling 10 100mm from ceiling 125mm from ceiling 5 5 0 0 0 1 2 Time [min] 3 4 5 0 1 2 3 Time [min] 4 5 55 Test 8 – Tunnel A+B O2 concentration Tunnel B CO concentration Tunnel B 0.25 20 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.668m 12 Concentration [vol-%] Concentration [vol-%] 22 10 0.2 0.15 Ch 114; y = 0.187m Ch 117; y = 0.563m 0.1 Ch 119; y = 1.668m 0.05 0 8 0 1 2 3 4 0 5 1 2 3 4 5 Time [min] Time [min] Tunnel B: Temperature at position of fire, 13mm from ceiling CO2 concentration Tunnel B 1000 6 800 4 Ch 115; y = 0.187m 3 Ch 118; y = 0.563m Ch 120; y = 1.668m 2 Temperature [°C] Concentration [vol-%] 900 5 700 600 Left 500 Centre 400 Right 300 200 1 100 0 0 0 1 2 3 4 0 5 1 2 3 4 5 Time [min] Time [min] Tunnel B: Temperature at 75mm from ceiling, centre Tunnel B: Temperature at 13mm from ceiling, left 80 250 Temperature [°C] 0.5m from fire 1m from fire 150 1.5m from fire 2m from fire 100 2.5m from fire 3.75m from fire 50 Temperature [°C] 70 200 60 y = 0.187m 50 y = 0.563m 40 y = 1.313m 30 y = 1.688m 20 10 0 0 0 1 2 3 4 5 0 1 Time [min] 3 4 5 Time [min] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. 30 30 25 25 20 TC 0.25mm 15 TC 0.8mm 10 Temperature [°C] Temperature [°C] 2 20 TC 0.25mm 15 TC 0.8mm 10 5 5 0 0 0 1 2 Time [min] 3 4 5 0 1 2 Time [min] 3 4 5 56 Test 8 – Tunnel A+B Tunnel B: Temperature at y = 0.563m, centre Tunnel B: Temperature at y = 0.187m, centre. 300 300 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 1 2 3 4 5 0 1 Time [min] Tunnel B: Temperature at y = 1.313m, left 5 300 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling Temperature [°C] 250 13mm from ceiling 200 50 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 0 0 0 1 2 3 4 5 0 1 2 Time [min] 3 4 5 Time [min] Tunnel B: Temperature at y = 1.688m, left Tunnel B: Temperature at y = 1.688m, right 300 300 250 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 4 Tunnel B: Temperature at y = 1.313m, right 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 1 2 3 4 0 5 1 2 3 4 5 Time [min] Time [min] Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at x = 0.187m, left 25 20 x = 0.187m 15 x = 0.563m x = 2.875m 10 Temperature [°C] 25 Temperature [°C] 3 Time [min] 300 Temperature [°C] 2 20 13mm from ceiling 15 50mm from ceiling 75mm from ceiling 10 100mm from ceiling 125mm from ceiling 5 5 0 0 0 1 2 3 Time [min] 4 5 0 1 2 3 Time [min] 4 5 57 Test 9 – Tunnel A+B O2 concentration Tunnel B CO concentration Tunnel B 0.25 20 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y =1.668m 12 Concentration [vol-%] Concentration [vol-%] 22 0.2 0.15 Ch 114; y = 0.187m Ch 117; y = 0.563m 0.1 Ch 119; y = 1.668m 0.05 10 0 8 0 5 10 15 0 20 5 10 4.5 1000 4 900 3.5 800 3 2.5 Ch 115; y = 0.187m 2 Ch 118; y = 0.563m Ch 120; y = 1.668m 1.5 1 Temperature [°C] Concentration [vol-%] 20 Tunnel B: Temperature at position of fire, 13mm from ceiling CO2 concentration Tunnel B 700 600 Left 500 Centre 400 Right 300 200 0.5 100 0 0 5 10 15 0 20 0 5 Time [min] 10 15 20 Time [min] Tunnel B: Temperature at 75mm from ceiling, centre Tunnel B: Temperature at 13mm from ceiling, left 140 250 0.5m from fire 1m from fire 150 1.5m from fire 2m from fire 100 2.5m from fire 3.75m from fire 50 Temperature [°C] 120 200 Temperature [°C] 15 Time [min] Time [min] 100 y = 0.187m y = 0.563m 80 y = 1.313m 60 y = 1.688m 40 20 0 0 0 5 10 15 20 0 5 Time [min] 15 20 Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. 70 70 60 60 50 40 TC 0.25mm 30 TC 0.8mm 20 Temperature [°C] Temperature [°C] 10 Time [min] 50 40 TC 0.25mm 30 TC 0.8mm 20 10 10 0 0 0 5 10 Time [min] 15 20 0 5 10 Time [min] 15 20 58 Test 9 – Tunnel A+B Tunnel B: Temperature at y = 0.187m, centre. Tunnel B: Temperature at y = 0.563m, centre 350 350 300 250 13mm from ceiling 50mm from ceiling 200 75mm from ceiling 150 100mm from ceiling 125mm from ceiling 100 Temperature [°C] Temperature [°C] 300 50 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 0 0 0 5 10 15 20 0 5 Time [min] 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 20 350 300 50 13mm from ceiling 250 50mm from ceiling 200 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 0 0 0 5 10 15 20 0 5 Time [min] 10 15 20 Time [min] Tunnel B: Temperature at y = 1.688m, left Tunnel B: Temperature at y = 1.688m, right 350 350 300 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 125mm from ceiling 100 Temperature [°C] Temperature [°C] 15 Tunnel B: Temperature at y = 1.313m, right Tunnel B: Temperature at y = 1.313m, left 350 50 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 125mm from ceiling 100 50 0 0 0 5 10 15 20 0 5 Time [min] 10 15 20 Time [min] Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at x = 0.187m, left 35 50 45 30 40 25 x = 0.187m 20 x = 0.563m x = 2.875m 15 10 Temperature [°C] Temperature [°C] 10 Time [min] 35 13mm from ceiling 30 50mm from ceiling 25 75mm from ceiling 20 100mm from ceiling 15 125mm from ceiling 10 5 5 0 0 0 5 10 Time [min] 15 20 0 5 10 Time [min] 15 20 59 Test 10 – Tunnel A+B O2 concentration Tunnel B CO concentration Tunnel B 0.25 20 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.688m 12 Concentration [vol-%] Concentration [vol-%] 22 0.2 0.15 Ch 114; y = 0.187m Ch 117; y = 0.563m 0.1 Ch 119; y = 1.688m 0.05 10 0 8 0 2 4 6 0 8 2 4 6 8 Time [min] Time [min] CO2 concentration Tunnel B Tunnel B: Temperature at position of fire, 13mm from ceiling 1000 6 800 4 Ch 115; y = 0.187m 3 Ch 118; y = 0.563m Ch 120; y = 1.688m 2 Temperature [°C] Concentration [vol-%] 900 5 700 600 Left 500 Centre 400 Right 300 200 1 100 0 0 0 2 4 6 8 0 1 2 Time [min] 4 5 6 7 8 Time [min] Tunnel B: Temperature at 75mm from ceiling, centre Tunnel B: Temperature at 13mm from ceiling, left 250 70 0.5m from fire 1m from fire 150 1.5m from fire 2m from fire 100 2.5m from fire 3.75m from fire 50 Temperature [°C] 60 200 Temperature [°C] 3 50 y = 0.187m 40 y = 0.563m y = 1.313m 30 y = 1.688m 20 10 0 0 0 2 4 6 8 0 2 Time [min] 6 8 Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. 30 30 25 25 20 TC 0.25mm 15 TC 0.8mm 10 Temperature [°C] Temperature [°C] 4 Time [min] 20 TC 0.25mm 15 TC 0.8mm 10 5 5 0 0 0 2 4 Time [min] 6 8 0 2 4 Time [min] 6 8 60 Test 10 – Tunnel A+B Tunnel B: Temperature at y = 0.563m, centre Tunnel B: Temperature at y = 0.187m, centre. 300 300 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 250 50 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 0 0 0 2 4 6 8 0 2 Time [min] Tunnel B: Temperature at y = 1.313m, left 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 8 300 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 2 4 6 0 8 2 4 6 8 Time [min] Time [min] Tunnel B: Temperature at y = 1.688m, right Tunnel B: Temperature at y = 1.688m, left 300 300 250 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 6 Tunnel B: Temperature at y = 1.313m, right 300 50 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 0 0 0 2 4 6 8 0 2 Time [min] 4 6 8 Time [min] Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at x = 0.187m, left 25 25 20 x = 0.187m 15 x = 0.563m x = 2.875m 10 Temperature [°C] 20 Temperature [°C] 4 Time [min] 13mm from ceiling 15 50mm from ceiling 75mm from ceiling 10 100mm from ceiling 125mm from ceiling 5 5 0 0 0 2 4 Time [min] 6 8 0 2 4 Time [min] 6 8 61 Test 11 – Tunnel A+B CO concentration Tunnel B 0.14 20 0.12 18 16 Ch 113; y = 0.187m 14 Ch 116; y = 0.563m Ch 108; y = 1.688m 12 10 Concentration [vol-%] Concentration [vol-%] O2 concentration Tunnel B 22 0.1 Ch 114; y = 0.187m 0.08 Ch 117; y = 0.563m 0.06 Ch 119; y = 1.688m 0.04 0.02 8 0 1 2 3 4 0 5 0 Time [min] 1 2 3 4 5 Time [min] Tunnel B: Temperature at position of fire, 13mm from ceiling 500 0.9 450 0.8 400 0.7 0.6 Ch 115; y = 0.187m 0.5 Ch 118; y = 0.563m 0.4 Ch 120; y = 1.688m 0.3 Temperature [°C] Concentration [vol-%] CO2 concentration Tunnel B 1 0.2 350 300 Left 250 Centre 200 Right 150 100 0.1 50 0 0 0 1 2 3 4 5 0 1 2 Time [min] 5 35 100 90 80 70 60 50 40 30 20 10 0 30 0.5m from fire 1m from fire 1.5m from fire 2m from fire 2.5m from fire 3.75m from fire Temperature [°C] Temperature [°C] 4 Tunnel B: Temperature at 75mm from ceiling, centre Tunnel B: Temperature at 13mm from ceiling, left 25 y = 0.187m 20 y = 0.563m y = 1.313m 15 y = 1.688m 10 5 0 0 1 2 3 4 5 0 1 Time [min] 2 3 4 5 Time [min] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. 30 30 25 25 20 TC 0.25mm 15 TC 0.8mm 10 5 Temperature [°C] Temperature [°C] 3 Time [min] 20 TC 0.25mm 15 TC 0.8mm 10 5 0 0 0 1 2 3 Time [min] 4 5 0 1 2 3 Time [min] 4 5 62 Test 11 – Tunnel A+B Tunnel B: Temperature at y = 0.563m, centre Tunnel B: Temperature at y = 0.187m, centre. 120 120 100 13mm from ceiling 80 50mm from ceiling 60 75mm from ceiling 100mm from ceiling 40 125mm from ceiling Temperature [°C] Temperature [°C] 100 20 13mm from ceiling 80 50mm from ceiling 60 75mm from ceiling 100mm from ceiling 40 125mm from ceiling 20 0 0 0 1 2 3 4 5 0 1 Time [min] Tunnel B: Temperature at y = 1.313m, left 5 Tunnel B: Temperature at y = 1.313m, right 50mm from ceiling 60 75mm from ceiling 100mm from ceiling 40 125mm from ceiling Temperature [°C] 100 13mm from ceiling 80 20 13mm from ceiling 80 50mm from ceiling 60 75mm from ceiling 100mm from ceiling 40 125mm from ceiling 20 0 0 0 1 2 3 4 5 0 1 2 Time [min] 3 4 5 Time [min] Tunnel B: Temperature at y = 1.688m, right Tunnel B: Temperature at y = 1.688m, left 120 120 100 13mm from ceiling 80 50mm from ceiling 75mm from ceiling 60 100mm from ceiling 40 125mm from ceiling Temperature [°C] 100 Temperature [°C] 4 120 100 20 13mm from ceiling 80 50mm from ceiling 60 75mm from ceiling 100mm from ceiling 40 125mm from ceiling 20 0 0 0 1 2 3 4 5 0 1 Time [min] 2 3 4 5 Time [min] Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at x = 0.187m, left 25 25 20 20 x = 0.187m 15 x = 0.563m x = 2.875m 10 Temperature [°C] Temperature [°C] 3 Time [min] 120 Temperature [°C] 2 13mm from ceiling 50mm from ceiling 15 75mm from ceiling 10 100mm from ceiling 125mm from ceiling 5 5 0 0 0 2 4 Time [min] 6 8 0 1 2 3 Time [min] 4 5 63 Test 12 – Tunnel A+B CO concentration Tunnel B 0.16 20 0.14 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.688m 12 10 Concentration [vol-%] Concentration [vol-%] O2 concentration Tunnel B 22 0.12 0.1 Ch 114; y = 0.187m 0.08 Ch 117; y = 0.563m 0.06 Ch 119; y = 1.688m 0.04 0.02 8 0 0 1 2 3 4 5 0 1 2 Time [min] CO2 concentration Tunnel B 500 0.9 0.8 450 Ch 115; y = 0.187m 0.5 0.4 Ch 118; y = 0.563m Ch 120; y = 1.688m 0.3 0.2 350 300 Left 250 Centre 200 Right 150 100 50 0 1 2 3 4 0 5 0 1 2 Time [min] 3 4 5 Time [min] Tunnel B: Temperature at 13mm from ceiling, left Tunnel B: Temperature at 75mm from ceiling, centre 90 35 80 30 70 0.5m from fire 60 1m from fire 50 1.5m from fire 40 2m from fire 30 2.5m from fire 20 3.75m from fire Temperature [°C] Temperature [°C] 5 400 0.7 0.6 0.1 0 25 y = 0.187m 20 y = 0.563m y = 1.313m 15 y = 1.688m 10 5 10 0 0 0 1 2 3 4 5 0 1 2 Time [min] 3 4 5 Time [min] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. 30 30 25 25 20 TC 0.25mm 15 TC 0.8mm 10 Temperature [°C] Temperature [°C] 4 Tunnel B: Temperature at position of fire, 13mm from ceiling 1 Temperature [°C] Concentration [vol-%] 3 Time [min] 20 TC 0.25mm 15 TC 0.8mm 10 5 5 0 0 0 1 2 3 Time [min] 4 5 0 1 2 Time [min] 3 4 5 64 Test 12 – Tunnel A+B Tunnel B: Temperature at y = 0.187m, centre. Tunnel B: Temperature at y = 0.563m, centre 120 120 100 13mm from ceiling 80 50mm from ceiling 60 75mm from ceiling 100mm from ceiling 40 125mm from ceiling Temperature [°C] Temperature [°C] 100 20 13mm from ceiling 80 50mm from ceiling 60 75mm from ceiling 100mm from ceiling 40 125mm from ceiling 20 0 0 0 1 2 3 4 5 0 1 Time [min] 5 Tunnel B: Temperature at y = 1.313m, right 100 13mm from ceiling 80 50mm from ceiling 75mm from ceiling 60 100mm from ceiling 40 125mm from ceiling Temperature [°C] 100 20 13mm from ceiling 80 50mm from ceiling 60 75mm from ceiling 100mm from ceiling 40 125mm from ceiling 20 0 0 0 1 2 3 4 5 0 1 2 Time [min] 3 4 5 Time [min] Tunnel B: Temperature at y = 1.688m, left Tunnel B: Temperature at y = 1.688m, right 120 120 100 100 13mm from ceiling 80 50mm from ceiling 60 75mm from ceiling 100mm from ceiling 40 125mm from ceiling Temperature [°C] Temperature [°C] 4 120 120 13mm from ceiling 80 50mm from ceiling 60 75mm from ceiling 100mm from ceiling 40 125mm from ceiling 20 20 0 0 0 1 2 3 4 0 5 1 2 3 4 5 Time [min] Time [min] Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at x = 0.187m, left 25 25 20 20 x = 0.187m 15 x = 0.563m x = 2.875m 10 Temperature [°C] Temperature [°C] 3 Time [min] Tunnel B: Temperature at y = 1.313m, left Temperature [°C] 2 13mm from ceiling 50mm from ceiling 15 75mm from ceiling 10 100mm from ceiling 125mm from ceiling 5 5 0 0 0 1 2 Time [min] 3 4 5 0 1 2 3 Time [min] 4 5 65 Test 13 – Tunnel A+B CO concentration Tunnel B O2 concentration Tunnel B 0.12 20 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.688m 12 10 Concentration [vol-%] Concentration [vol-%] 22 0.1 0.08 1 2 3 4 Ch 117; y = 0.563m Ch 119; y = 1.688m 0.04 0.02 8 0 Ch 114; y = 0.187m 0.06 0 5 0 1 2 Time [min] CO2 concentration Tunnel B 450 1.2 Ch 115; y = 0.187m 0.8 Ch 118; y = 0.563m 0.6 Ch 120; y = 1.688m 0.4 Temperature [°C] 400 1 350 300 Left 250 Centre 200 Right 150 100 50 0 0 0 1 2 3 4 0 5 1 2 3 4 5 Time [min] Time [min] Tunnel B: Temperature at 75mm from ceiling, centre Tunnel B: Temperature at 13mm from ceiling, left 50 70 45 60 0.5m from fire 50 1m from fire 40 1.5m from fire 2m from fire 30 2.5m from fire 20 3.75m from fire 40 Temperature [°C] Temperature [°C] 5 Tunnel B: Temperature at position of fire, 13mm from ceiling 0.2 35 y = 0.187m 30 y = 0.563m 25 y = 1.313m 20 y = 1.688m 15 10 10 5 0 0 0 1 2 3 4 0 5 1 2 3 4 5 Time [min] Time [min] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. 30 30 25 25 20 TC 0.25mm 15 TC 0.8mm 10 Temperature [°C] Temperature [°C] 4 500 1.4 Concentration [vol-%] 3 Time [min] 20 TC 0.25mm 15 TC 0.8mm 10 5 5 0 0 0 1 2 Time [min] 3 4 5 0 1 2 3 Time [min] 4 5 66 Test 13 – Tunnel A+B Tunnel B: Temperature at y = 0.187m, centre. Tunnel B: Temperature at y = 0.563m, centre 120 120 100 13mm from ceiling 80 50mm from ceiling 75mm from ceiling 60 100mm from ceiling 40 125mm from ceiling Temperature [°C] Temperature [°C] 100 20 13mm from ceiling 80 50mm from ceiling 60 75mm from ceiling 100mm from ceiling 40 125mm from ceiling 20 0 0 0 1 2 3 4 5 0 1 2 Time [min] 100 13mm from ceiling 80 50mm from ceiling 60 75mm from ceiling 100mm from ceiling 40 125mm from ceiling Temperature [°C] 100 Temperature [°C] 5 120 120 13mm from ceiling 80 50mm from ceiling 60 75mm from ceiling 100mm from ceiling 40 125mm from ceiling 20 20 0 0 0 1 2 3 4 0 5 1 2 3 4 5 Time [min] Time [min] Tunnel B: Temperature at y = 1.688m, right Tunnel B: Temperature at y = 1.688m, left 120 120 100 13mm from ceiling 80 50mm from ceiling 60 75mm from ceiling 100mm from ceiling 40 125mm from ceiling Temperature [°C] 100 Temperature [°C] 4 Tunnel B: Temperature at y = 1.313m, right Tunnel B: Temperature at y = 1.313m, left 20 13mm from ceiling 80 50mm from ceiling 60 75mm from ceiling 100mm from ceiling 40 125mm from ceiling 20 0 0 0 1 2 3 4 5 0 1 2 Time [min] 3 4 5 Time [min] Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at x = 0.187m, left 25 25 20 20 x = 0.187m 15 x = 0.563m x = 2.875m 10 Temperature [°C] Temperature [°C] 3 Time [min] 13mm from ceiling 15 50mm from ceiling 75mm from ceiling 10 100mm from ceiling 125mm from ceiling 5 5 0 0 0 1 2 3 Time [min] 4 5 0 1 2 3 Time [min] 4 5 67 Test 14 – Tunnel A+B CO concentration Tunnel B O2 concentration Tunnel B 0.35 20 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.688m 12 10 Concentration [vol-%] Concentration [vol-%] 22 0.3 0.25 Ch 114; y = 0.187m 0.2 Ch 117; y = 0.563m 0.15 Ch 119; y = 1.688m 0.1 0.05 8 0 0 2 4 6 8 0 2 4 Time [min] 1000 4 900 800 3.5 3 Ch 115; y = 0.187m 2.5 Ch 118; y = 0.563m 2 Ch 120; y = 1.688m 1.5 1 Temperature [°C] Concentration [vol-%] 4.5 700 600 Left 500 Centre 400 Right 300 200 0.5 100 0 0 0 2 4 6 8 0 1 2 Time [min] 3 4 5 6 7 8 Time [min] Tunnel B: Temperature at 13mm from ceiling, left Tunnel B: Temperature at 75mm from ceiling, centre 250 60 200 0.5m from fire 1m from fire 150 1.5m from fire 2m from fire 100 2.5m from fire 3.75m from fire 50 50 Temperature [°C] Temperature [°C] 8 Tunnel B: Temperature at position of fire, 13mm from ceiling CO2 concentration Tunnel B y = 0.187m 40 y = 0.563m 30 y = 1.313m y = 1.688m 20 10 0 0 0 2 4 6 8 0 2 Time [min] 4 6 8 Time [min] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. 30 30 25 25 20 TC 0.25mm 15 TC 0.8mm 10 5 Temperature [°C] Temperature [°C] 6 Time [min] 20 TC 0.25mm 15 TC 0.8mm 10 5 0 0 0 2 4 Time [min] 6 8 0 2 4 Time [min] 6 8 68 Test 14 – Tunnel A+B Tunnel B: Temperature at y = 0.187m, centre. Tunnel B: Temperature at y = 0.563m, centre 300 300 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 2 4 6 0 8 2 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling Temperature [°C] 250 Temperature [°C] 8 300 300 50 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 0 0 0 2 4 6 8 0 2 Time [min] 4 6 8 Time [min] Tunnel B: Temperature at y = 1.688m, left Tunnel B: Temperature at y = 1.688m, right 300 300 250 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 6 Tunnel B: Temperature at y = 1.313m, right Tunnel B: Temperature at y = 1.313m, left 50 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 0 0 0 2 4 6 8 0 2 Time [min] 4 6 8 Time [min] Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at x = 0.187m, left 25 25 20 x = 0.187m 15 x = 0.563m x = 2.875m 10 Temperature [°C] 20 Temperature [°C] 4 Time [min] Time [min] 13mm from ceiling 50mm from ceiling 15 75mm from ceiling 10 100mm from ceiling 125mm from ceiling 5 5 0 0 0 2 4 Time [min] 6 8 0 2 4 Time [min] 6 8 69 Test 15 – Tunnel A+B O2 concentration Tunnel B CO concentration Tunnel B 0.25 20 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.688m 12 10 Concentration [vol-%] Concentration [vol-%] 22 0.2 0.15 Ch 114; y = 0.187m Ch 117; y = 0.563m 0.1 Ch 119; y = 1.688m 0.05 0 8 0 2 4 6 0 8 2 4 CO2 concentration Tunnel B 8 Tunnel B: Temperature at position of fire, 13mm from ceiling 4.5 1000 4 900 3.5 800 3 Ch 115; y = 0.187m 2.5 Ch 118; y = 0.563m 2 Ch 120; y = 1.688m 1.5 1 Temperature [°C] Concentration [vol-%] 6 Time [min] Time [min] 700 600 Left 500 Centre 400 Right 300 200 0.5 100 0 0 0 2 4 6 8 0 1 2 Time [min] 3 4 5 6 7 8 Time [min] Tunnel B: Temperature at 13mm from ceiling, left Tunnel B: Temperature at 75mm from ceiling, centre 250 90 Temperature [°C] 0.5m from fire 1m from fire 150 1.5m from fire 2m from fire 100 2.5m from fire 3.75m from fire 50 Temperature [°C] 80 200 70 y = 0.187m 60 y = 0.563m 50 y = 1.313m 40 y = 1.688m 30 20 10 0 0 0 2 4 6 8 0 2 Time [min] 6 8 Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. 35 30 30 25 25 20 TC 0.25mm 15 TC 0.8mm 10 Temperature [°C] Temperature [°C] 4 Time [min] 20 TC 0.25mm 15 TC 0.8mm 10 5 5 0 0 0 2 4 Time [min] 6 8 0 2 4 Time [min] 6 8 70 Test 15 – Tunnel A+B Tunnel B: Temperature at y = 0.563m, centre Tunnel B: Temperature at y = 0.187m, centre. 300 300 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 250 50 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 0 0 0 2 4 6 8 0 2 Time [min] Tunnel B: Temperature at y = 1.313m, left 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 8 300 250 50 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 0 0 0 2 4 6 8 0 2 Time [min] 4 6 8 Time [min] Tunnel B: Temperature at y = 1.688m, left Tunnel B: Temperature at y = 1.688m, right 300 300 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling Temperature [°C] 250 Temperature [°C] 6 Tunnel B: Temperature at y = 1.313m, right 300 50 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 0 0 0 2 4 6 8 0 2 Time [min] 4 6 8 Time [min] Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at x = 0.187m, left 25 25 20 20 15 x = 0.187m x = 0.563m x = 2.875m 10 Temperature [°C] Temperature [°C] 4 Time [min] 13mm from ceiling 15 50mm from ceiling 75mm from ceiling 10 100mm from ceiling 125mm from ceiling 5 5 0 0 0 2 4 Time [min] 6 8 0 2 4 Time [min] 6 8 71 Test 16 – Tunnel A+B O2 concentration Tunnel B CO concentration Tunnel B 22 Concentration [vol-%] 20 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.688m 12 10 Concentration [vol-%] 0.6 0.5 0.4 Ch 114; y = 0.187m 0.3 Ch 117; y = 0.563m 0.2 Ch 119; y = 1.688m 0.1 0 8 0 2 4 6 0 8 2 4 1000 4.5 900 4 800 3.5 3 Ch 115; y = 0.187m 2.5 Ch 118; y = 0.563m 2 Ch 120; y = 1.688m 1.5 1 700 600 Left 500 Centre 400 Right 300 200 0.5 100 0 0 0 2 4 6 8 0 1 2 Time [min] 3 4 5 6 7 Tunnel B: Temperature at 13mm from ceiling, left Tunnel B: Temperature at 75mm from ceiling, centre 90 180 80 160 1m from fire 120 1.5m from fire 100 2m from fire 80 60 2.5m from fire 40 3.75m from fire 70 Temperature [°C] 0.5m from fire 140 y = 0.187m 60 y = 0.563m 50 y = 1.313m 40 y = 1.688m 30 20 20 10 0 0 0 2 4 6 8 0 2 Time [min] 4 6 8 Time [min] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. 30 30 25 25 20 TC 0.25mm 15 TC 0.8mm 10 Temperature [°C] 35 20 TC 0.25mm 15 TC 0.8mm 10 5 5 0 0 0 8 Time [min] 200 Temperature [°C] 8 Tunnel B: Temperature at position of fire, 13mm from ceiling 5 Temperature [°C] Concentration [vol-%] CO2 concentration Tunnel B Temperature [°C] 6 Time [min] Time [min] 2 4 Time [min] 6 8 0 2 4 Time [min] 6 8 72 Test 16 – Tunnel A+B Tunnel B: Temperature at y = 0.563m, centre Tunnel B: Temperature at y = 0.187m, centre. 250 250 Temperature [°C] 13mm from ceiling 150 50mm from ceiling 75mm from ceiling 100 100mm from ceiling 125mm from ceiling 50 Temperature [°C] 200 200 13mm from ceiling 150 50mm from ceiling 75mm from ceiling 100 100mm from ceiling 125mm from ceiling 50 0 0 0 2 4 6 0 8 2 200 13mm from ceiling 150 50mm from ceiling 75mm from ceiling 100 100mm from ceiling 125mm from ceiling 50 Temperature [°C] Temperature [°C] 8 250 200 13mm from ceiling 150 50mm from ceiling 75mm from ceiling 100 100mm from ceiling 125mm from ceiling 50 0 0 0 2 4 6 8 0 2 Time [min] 4 6 8 Time [min] Tunnel B: Temperature at y = 1.688m, right Tunnel B: Temperature at y = 1.688m, left 250 250 200 13mm from ceiling 150 50mm from ceiling 75mm from ceiling 100 100mm from ceiling 125mm from ceiling 50 Temperature [°C] 200 Temperature [°C] 6 Tunnel B: Temperature at y = 1.313m, right Tunnel B: Temperature at y = 1.313m, left 250 13mm from ceiling 150 50mm from ceiling 75mm from ceiling 100 100mm from ceiling 125mm from ceiling 50 0 0 0 2 4 6 8 0 2 Time [min] 4 6 8 Time [min] Tunnel A: Temperature at x = 0.187m, left Tunnel A: Temperature at 75mm from ceiling, centre 25 25 20 x = 0.187m 15 x = 0.563m x = 2.875m 10 Temperature [°C] 20 Temperature [°C] 4 Time [min] Time [min] 13mm from ceiling 50mm from ceiling 15 75mm from ceiling 10 100mm from ceiling 125mm from ceiling 5 5 0 0 0 2 4 Time [min] 6 8 0 2 4 Time [min] 6 8 73 Test 17 – Tunnel A+B O2 concentration Tunnel B CO concentration Tunnel B 22 0.5 Concentration [vol-%] 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.688m 12 10 Concentration [vol-%] 0.45 20 0.4 0.35 0.3 Ch 114; y = 0.187m 0.25 Ch 117; y = 0.563m 0.2 Ch 119; y = 1.688m 0.15 0.1 0.05 8 0 0 5 10 15 0 5 10 Time [min] Tunnel B: Temperature at position of fire, 13mm from ceiling CO2 concentration Tunnel B 1000 8 900 7 800 6 5 Ch 115; y = 0.187m 4 Ch 118; y = 0.563m 3 Ch 120; y = 1.688m 2 Temperature [°C] Concentration [vol-%] 15 Time [min] 700 600 Left 500 Centre 400 Right 300 200 1 100 0 0 0 5 10 15 0 2 4 6 Time [min] 8 10 12 14 Time [min] Tunnel B: Temperature at 13mm from ceiling, left Tunnel B: Temperature at 75mm from ceiling, centre 300 100 90 0.5m from fire 200 1m from fire 1.5m from fire 150 2m from fire 2.5m from fire 100 3.75m from fire 80 Temperature [°C] Temperature [°C] 250 70 y = 0.187m 60 y = 0.563m 50 y = 1.313m 40 y = 1.688m 30 20 50 10 0 0 0 5 10 15 0 5 Time [min] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. 15 Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. 40 40 35 35 30 30 25 TC 0.25mm 20 TC 0.8mm 15 10 5 Temperature [°C] Temperature [°C] 10 Time [min] 25 TC 0.25mm 20 TC 0.8mm 15 10 5 0 0 0 5 10 Time [min] 15 0 5 10 Time [min] 15 74 Test 17 – Tunnel A+B Tunnel B: Temperature at y = 0.563m, centre 450 400 400 350 13mm from ceiling 300 50mm from ceiling 250 75mm from ceiling 200 100mm from ceiling 150 125mm from ceiling 100 Temperature [°C] Temperature [°C] Tunnel B: Temperature at y = 0.187m, centre. 450 50 350 13mm from ceiling 300 50mm from ceiling 250 75mm from ceiling 200 100mm from ceiling 150 125mm from ceiling 100 50 0 0 0 5 10 15 0 5 Time [min] Tunnel B: Temperature at y = 1.313m, left 450 400 400 300 13mm from ceiling 250 50mm from ceiling 75mm from ceiling 200 100mm from ceiling 150 125mm from ceiling 100 Temperature [°C] Temperature [°C] 15 Tunnel B: Temperature at y = 1.313m, right 450 350 350 13mm from ceiling 300 50mm from ceiling 250 75mm from ceiling 200 100mm from ceiling 150 125mm from ceiling 100 50 50 0 0 0 5 10 0 15 5 10 15 Time [min] Time [min] Tunnel B: Temperature at y = 1.688m, left Tunnel B: Temperature at y = 1.688m, right 450 450 400 400 350 13mm from ceiling 300 50mm from ceiling 250 75mm from ceiling 200 100mm from ceiling 150 125mm from ceiling 100 Temperature [°C] Temperature [°C] 10 Time [min] 50 350 13mm from ceiling 300 50mm from ceiling 250 75mm from ceiling 200 100mm from ceiling 150 125mm from ceiling 100 50 0 0 0 5 10 15 0 5 Time [min] 10 15 Time [min] Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at x = 0.187m, left 25 25 24.5 24 x = 0.187m 15 x = 0.563m x = 2.875m 10 Temperature [°C] Temperature [°C] 20 13mm from ceiling 23.5 50mm from ceiling 23 75mm from ceiling 22.5 100mm from ceiling 22 125mm from ceiling 21.5 5 21 20.5 0 0 5 10 Time [min] 15 0 5 10 Time [min] 15 75 Test 18 – Tunnel A+B CO concentration Tunnel B 0.4 20 0.35 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.688m 12 10 Concentration [vol-%] Concentration [vol-%] O2 concentration Tunnel B 22 0.3 0.25 Ch 114; y = 0.187m 0.2 Ch 117; y = 0.563m 0.15 Ch 119; y = 1.688m 0.1 0.05 8 0 0 2 4 6 8 10 0 2 4 Time [min] CO2 concentration Tunnel B 8 10 Tunnel B: Temperature at position of fire, 13mm from ceiling 3.5 1000 900 3 800 2.5 Ch 115; y = 0.187m 2 Ch 118; y = 0.563m 1.5 Ch 120; y = 1.688m 1 Temperature [°C] Concentration [vol-%] 6 Time [min] 700 600 Left 500 Right 400 300 200 0.5 100 0 0 2 4 6 8 0 10 0 2 4 Time [min] Tunnel B: Temperature at 13mm from ceiling, left 8 10 Tunnel B: Temperature at 75mm from ceiling, centre 300 35 30 250 y = 0.875m; 0.625m from fire 200 Y = 1.375m; 0.125m from fire y = 1.875m; 0.375m from fire 150 y = 2.375m; 0.875m from fire y = 3m; 1.5m from fire 100 y = 4.125m; 2.625m from fire 50 Temperature [°C] Temperature [°C] 6 Time [min] 25 y = 0.187m 20 y = 0.563m y = 1.313m 15 y = 1.688m 10 5 0 0 2 4 6 8 0 10 0 Time [min] 2 4 6 8 10 Time [min] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. 40 40 35 35 30 25 TC 0.25mm 20 TC 0.8mm 15 10 Temperature [°C] Temperature [°C] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. 30 25 TC 0.25mm 20 TC 0.8mm 15 10 5 5 0 0 0 2 4 6 Time [min] 8 10 0 2 4 6 Time [min] 8 10 76 Test 18 – Tunnel A+B Tunnel B: Temperature at y = 0.563m, centre Tunnel B: Temperature at y = 0.187m, centre. 250 250 200 13mm from ceiling 50mm from ceiling 150 75mm from ceiling 100 100mm from ceiling 125mm from ceiling Temperature [°C] Temperature [°C] 200 13mm from ceiling 50mm from ceiling 150 75mm from ceiling 100 100mm from ceiling 125mm from ceiling 50 50 0 0 0 2 4 6 8 10 0 2 4 Time [min] 200 13mm from ceiling 50mm from ceiling 150 75mm from ceiling 100 100mm from ceiling 125mm from ceiling Temperature [°C] 200 Temperature [°C] 10 250 250 13mm from ceiling 50mm from ceiling 150 75mm from ceiling 100 100mm from ceiling 125mm from ceiling 50 50 0 0 0 2 4 6 8 0 10 2 4 6 8 10 Time [min] Time [min] Tunnel B: Temperature at y = 1.688m, left Tunnel B: Temperature at y = 1.688m, right 250 250 200 200 13mm from ceiling 50mm from ceiling 150 75mm from ceiling 100 100mm from ceiling 125mm from ceiling Temperature [°C] Temperature [°C] 8 Tunnel B: Temperature at y = 1.313m, right Tunnel B: Temperature at y = 1.313m, left 13mm from ceiling 150 50mm from ceiling 75mm from ceiling 100 100mm from ceiling 125mm from ceiling 50 50 0 0 0 2 4 6 8 0 10 2 4 6 8 10 Time [min] Time [min] Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at x = 0.187m, left 25 25 20 x = 0.187m 15 x = 0.563m x = 2.875m 10 Temperature [°C] 20 Temperature [°C] 6 Time [min] 13mm from ceiling 50mm from ceiling 15 75mm from ceiling 10 100mm from ceiling 125mm from ceiling 5 5 0 0 0 2 4 Time [min] 6 8 10 0 2 4 6 Time [min] 8 10 77 Test 19 – Tunnel A+B CO concentration Tunnel B 0.14 20 0.12 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.688m 12 Concentration [vol-%] Concentration [vol-%] O2 concentration Tunnel B 22 10 0.1 Ch 114; y = 0.187m 0.08 Ch 117; y = 0.563m 0.06 Ch 119; y = 1.688m 0.04 0.02 0 8 0 2 4 6 0 8 2 4 8 Tunnel B: Temperature at position of fire, 13mm from ceiling CO2 concentration Tunnel B 1.4 1000 900 1.2 800 1 Ch 115; y = 0.187m 0.8 Ch 118; y = 0.563m 0.6 Ch 120; y = 1.688m 0.4 Temperature [°C] Concentration [vol-%] 6 Time [min] Time [min] 700 600 Left 500 Right 400 300 200 0.2 100 0 0 2 4 6 0 8 0 1 2 Time [min] Tunnel B: Temperature at 13mm from ceiling, left 5 6 7 8 Tunnel B: Temperature at 75mm from ceiling, centre 40 350 35 y = 0.875m; 0.625m from fire 300 y = 1.375m; 0.125m from fire 250 y =1.875m; 0.375m from fire 200 y = 2.375m; 0.875m from fire 150 y = 3m; 1.5m from fire 100 Temperature [°C] Temperature [°C] 4 Time [min] 400 30 y = 0.187m 25 y = 0.563m 20 y = 1.313m 15 y = 1.688m 10 y = 4.125m; 2.625m from fire 50 5 0 0 2 4 6 0 8 0 2 Time [min] 4 6 8 Time [min] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. 40 40 35 35 30 25 TC 0.25mm 20 TC 0.8mm 15 10 Temperature [°C] Temperature [°C] 3 30 25 TC 0.25mm 20 TC 0.8mm 15 10 5 5 0 0 0 2 4 Time [min] 6 8 0 2 4 Time [min] 6 8 78 Test 19 – Tunnel A+B Tunnel B: Temperature at y = 0.187m, centre. Tunnel B: Temperature at y = 0.563m, centre 300 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 250 50 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 0 0 0 2 4 6 8 0 2 Time [min] 250 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 8 300 300 50 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 0 0 0 2 4 6 8 0 2 Time [min] 4 6 8 Time [min] Tunnel B: Temperature at y = 1.688m, left Tunnel B: Temperature at y = 1.688m, right 300 300 250 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 6 Tunnel B: Temperature at y = 1.313m, right Tunnel B: Temperature at y = 1.313m, left 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 2 4 6 0 8 2 4 6 8 Time [min] Time [min] Tunnel A: Temperature at x = 0.187m, left Tunnel A: Temperature at 75mm from ceiling, centre 25 25 20 20 15 x = 0.187m x = 0.563m 10 x = 2.875m Temperature [°C] Temperature [°C] 4 Time [min] 13mm from ceiling 50mm from ceiling 15 75mm from ceiling 100mm from ceiling 10 125mm from ceiling 5 5 0 0 0 2 4 Time [min] 6 8 0 2 4 Time [min] 6 8 79 Test 20 – Tunnel A+B O2 concentration Tunnel B CO concentration Tunnel B 0.25 20 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.688m 12 Concentration [vol-%] Concentration [vol-%] 22 0.2 0.15 Ch 114; y = 0.187m Ch 117; y = 0.563m 0.1 Ch 119; y = 1.688m 0.05 10 0 8 0 5 10 0 15 5 CO2 concentration Tunnel B 1000 900 2.5 800 2 Ch 115; y = 0.187m 1.5 Ch 118; y = 0.563m Ch 120; y = 1.688m 1 0.5 Temperature [°C] Concentration [vol-%] 15 Tunnel B: Temperature at position of fire, 13mm from ceiling 3 700 600 Left 500 Right 400 300 200 100 0 0 5 10 0 15 0 Time [min] 2 4 6 8 10 12 14 Time [min] Tunnel B: Temperature at 75mm from ceiling, centre Tunnel B: Temperature at 13mm from ceiling, left 60 800 700 y = 0.875m; 0.625m from fire 600 y = 1.375m; 0.125m from fire 500 y = 1.875m; 0.375m from fire 400 y = 2.375m; 0.875m from fire 300 200 y = 3m; 1.5m from fire 100 50 Temperature [°C] Temperature [°C] 10 Time [min] Time [min] 40 y = 0.187m y = 0.563m 30 y = 1.313m y = 1.688m 20 10 y = 4.125m; 2.625m from fire 0 0 5 10 0 15 0 Time [min] 5 10 15 Time [min] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. 50 45 40 35 30 25 20 15 10 5 0 TC 0.25mm TC 0.8mm 0 5 10 Time [min] 15 Temperature [°C] Temperature [°C] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. 50 45 40 35 30 25 20 15 10 5 0 TC 0.25mm TC 0.8mm 0 5 10 Time [min] 15 80 Test 20 – Tunnel A+B Tunnel B: Temperature at y = 0.563m, centre Tunnel B: Temperature at y = 0.187m, centre. 600 600 500 13mm from ceiling 400 50mm from ceiling 75mm from ceiling 300 100mm from ceiling 200 125mm from ceiling Temperature [°C] Temperature [°C] 500 100 13mm from ceiling 400 50mm from ceiling 300 75mm from ceiling 100mm from ceiling 200 125mm from ceiling 100 0 0 0 5 10 15 0 5 Time [min] Tunnel B: Temperature at y = 1.313m, left 600 500 13mm from ceiling 400 50mm from ceiling 300 75mm from ceiling 100mm from ceiling 200 125mm from ceiling Temperature [°C] Temperature [°C] 500 13mm from ceiling 400 50mm from ceiling 300 75mm from ceiling 100mm from ceiling 200 125mm from ceiling 100 100 0 0 0 5 10 0 15 5 10 15 Time [min] Time [min] Tunnel B: Temperature at y = 1.688m, left Tunnel B: Temperature at y = 1.688m, right 600 600 500 500 13mm from ceiling 400 50mm from ceiling 300 75mm from ceiling 100mm from ceiling 200 125mm from ceiling Temperature [°C] Temperature [°C] 15 Tunnel B: Temperature at y = 1.313m, right 600 100 13mm from ceiling 400 50mm from ceiling 75mm from ceiling 300 100mm from ceiling 200 125mm from ceiling 100 0 0 5 10 0 15 0 5 Time [min] 10 15 Time [min] Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at x = 0.187m, left 25 30 25 x = 0.187m 15 x = 0.563m x = 2.875m 10 5 Temperature [°C] 20 Temperature [°C] 10 Time [min] 13mm from ceiling 20 50mm from ceiling 15 75mm from ceiling 100mm from ceiling 10 125mm from ceiling 5 0 0 0 5 10 Time [min] 15 0 5 10 Time [min] 15 81 Test 21 – Tunnel A+B CO concentration Tunnel B 0.4 20 0.35 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.688m 12 Concentration [vol-%] Concentration [vol-%] O2 concentration Tunnel B 22 0.3 0.25 Ch 114; y = 0.187m 0.2 Ch 117; y = 0.563m 0.15 Ch 119; y = 1.688m 0.1 0.05 10 0 8 0 1 2 3 4 0 5 1 2 4 5 Tunnel B: Temperature at position of fire, 13mm from ceiling CO2 concentration Tunnel B 1200 5 4.5 4 3.5 3 2.5 2 1.5 1 0.5 0 1000 Ch 115; y = 0.187m Ch 118; y = 0.563m Ch 120; y = 1.688m Temperature [°C] Concentration [vol-%] 3 Time [min] Time [min] 800 Left 600 Right 400 200 0 1 2 3 4 0 5 0 Time [min] 1 2 3 4 5 Time [min] Tunnel B: Temperature at 13mm from ceiling, left Tunnel B: Temperature at 75mm from ceiling, centre 800 40 35 y = 0.875m; 0.625m from fire 600 y = 1.375m; 0.125m from fire 500 y = 1.875m; 0.375m from fire 400 300 y = 2.375m; 0.875m from fire 200 y = 3m; 1.5m from fire 100 Temperature [°C] Temperature [°C] 700 y = 4.125m; 2.625m from fire 1 2 3 4 y = 0.187m 25 y = 0.563m 20 y = 1.313m 15 y = 1.688m 10 5 0 0 30 0 5 0 Time [min] 2 3 4 5 Time [min] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. 40 40 35 35 30 25 TC 0.25mm 20 TC 0.8mm 15 10 Temperature [°C] Temperature [°C] 1 30 25 TC 0.25mm 20 TC 0.8mm 15 10 5 5 0 0 0 1 2 3 Time [min] 4 5 0 1 2 3 Time [min] 4 5 82 Test 21 – Tunnel A+B Tunnel B: Temperature at y = 0.187m, centre. Tunnel B: Temperature at y = 0.563m, centre 500 500 450 450 400 350 13mm from ceiling 300 50mm from ceiling 250 75mm from ceiling 200 100mm from ceiling 150 125mm from ceiling Temperature [°C] Temperature [°C] 400 350 13mm from ceiling 300 50mm from ceiling 250 75mm from ceiling 200 100mm from ceiling 150 125mm from ceiling 100 100 50 50 0 0 0 1 2 3 4 5 0 1 2 Time [min] 500 450 450 400 350 13mm from ceiling 300 5 50mm from ceiling 400 250 75mm from ceiling 200 100mm from ceiling 150 100 125mm from ceiling 350 13mm from ceiling 300 50mm from ceiling 250 75mm from ceiling 200 100mm from ceiling 150 125mm from ceiling 100 50 50 0 0 0 1 2 3 4 5 0 1 Time [min] 2 3 4 5 Time [min] Tunnel B: Temperature at y = 1.688m, right Tunnel B: Temperature at y = 1.688m, left 500 500 450 400 450 400 350 13mm from ceiling 300 250 50mm from ceiling 75mm from ceiling 200 100mm from ceiling 150 125mm from ceiling 100 50 Temperature [°C] Temperature [°C] 4 Tunnel B: Temperature at y = 1.313m, right 500 Temperature [°C] Temperature [°C] Tunnel B: Temperature at y = 1.313m, left 350 13mm from ceiling 300 250 50mm from ceiling 200 100mm from ceiling 150 125mm from ceiling 75mm from ceiling 100 50 0 0 0 1 2 3 4 5 0 1 Time [min] 2 3 4 5 Time [min] Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at x = 0.187m, left 25 25 20 20 x = 0.187m 15 x = 0.563m x = 2.875m 10 Temperature [°C] Temperature [°C] 3 Time [min] 13mm from ceiling 15 50mm from ceiling 75mm from ceiling 10 100mm from ceiling 125mm from ceiling 5 5 0 0 0 1 2 3 Time [min] 4 5 0 1 2 3 Time [min] 4 5 83 Test 22 – Tunnel A+B+C CO concentration Tunnel B O2 concentration Tunnel B 0.25 20 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.688m 12 Concentration [vol-%] Concentration [vol-%] 22 0.2 0.15 Ch 114; y = 0.187m Ch 117; y = 0.563m 0.1 Ch 119; y = 1.688m 0.05 10 0 8 0 2 4 6 0 8 2 4 CO2 concentration Tunnel B 8 Tunnel B: Temperature at position of fire, 13mm from ceiling 6 800 5 700 4 Ch 115; y = 0.187m 3 Ch 118; y = 0.563m Ch 120; y = 1.688m 2 1 Temperature [°C] Concentration [vol-%] 6 Time [min] Time [min] 600 500 Left 400 Centre Right 300 200 100 0 0 2 4 6 0 8 0 Time [min] 1 2 3 4 5 6 7 8 Time [min] Tunnel B: Temperature at 13mm from ceiling, left Tunnel B: Temperature at 75mm from ceiling, centre 250 60 50 1m from fire 150 1.5m from fire 100 2m from fire 2.5m from fire 50 Temperature [°C] Temperature [°C] 0.5m from fire 200 3.75m from fire 2 4 6 y = 0.563m 30 y = 1.313m y = 1.688m 20 10 0 0 y = 0.187m 40 8 0 Time [min] 0 2 4 6 8 Time [min] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. 40 40 35 35 30 25 TC 0.25mm 20 TC 0.8mm 15 10 Temperature [°C] Temperature [°C] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. 30 25 TC 0.25mm 20 TC 0.8mm 15 10 5 5 0 0 0 2 4 Time [min] 6 8 0 2 4 Time [min] 6 8 84 Test 22 – Tunnel A+B+C Tunnel B: Temperature at y = 0.563m, centre Tunnel B: Temperature at y = 0.187m, centre. 300 300 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 250 50 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 0 0 0 2 4 6 8 0 2 Time [min] Tunnel B: Temperature at y = 1.313m, left 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 8 300 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 2 4 6 0 8 2 4 6 8 Time [min] Time [min] Tunnel B: Temperature at y = 1.688m, left Tunnel B: Temperature at y = 1.688m, right 300 300 250 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 6 Tunnel B: Temperature at y = 1.313m, right 300 50 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 0 0 0 2 4 6 8 0 2 Time [min] 4 6 8 Time [min] Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at x = 0.187m, left 25 25 20 x = 0.187m 15 x = 0.563m x = 2.875m 10 Temperature [°C] 20 Temperature [°C] 4 Time [min] 13mm from ceiling 50mm from ceiling 15 75mm from ceiling 10 100mm from ceiling 125mm from ceiling 5 5 0 0 0 2 4 Time [min] 6 8 0 2 4 Time [min] 6 8 85 Test 23 – Tunnel A+B+C CO concentration Tunnel B 0.4 20 0.35 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.688m 12 10 Concentration [vol-%] Concentration [vol-%] O2 concentration Tunnel B 22 0.3 0.25 Ch 114; y = 0.187m 0.2 Ch 117; y = 0.563m 0.15 Ch 119; y = 1.688m 0.1 0.05 0 8 0 2 4 6 0 8 2 4 CO2 concentration Tunnel B 8 Tunnel B: Temperature at position of fire, 13mm from ceiling 5 4.5 4 800 700 3.5 3 2.5 2 1.5 Ch 115; y = 0.187m Ch 118; y = 0.563m Ch 120; y = 1.688m 1 0.5 0 Temperature [°C] Concentration [vol-%] 6 Time [min] Time [min] 600 500 Left 400 Right 300 200 100 0 2 4 6 0 8 0 Time [min] 1 2 3 4 5 6 7 8 Time [min] Tunnel B: Temperature at 13mm from ceiling, left Tunnel B: Temperature at 75mm from ceiling, centre 300 40 200 y = 0.875m; 0.625m from fire 35 y = 1.375m; 0.125m from fire 30 y = 1.875M; 0.375m from fire 150 y = 2.375m; 0.875m from fire 100 y = 3m, 1.5m from fire 50 Temperature [°C] Temperature [°C] 250 y = 4.125m; 2.625m from fire y = 0.187m 25 y = 0.563m 20 y = 1.313m 15 y = 1.688m 10 5 0 0 2 4 6 8 0 Time [min] 0 2 4 6 8 Time [min] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. 40 40 35 35 30 25 TC 0.25mm 20 TC 0.8mm 15 10 Temperature [°C] Temperature [°C] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. 30 25 TC 0.25mm 20 TC 0.8mm 15 10 5 5 0 0 0 2 4 Time [min] 6 8 0 2 4 Time [min] 6 8 86 Test 23 – Tunnel A+B+C Tunnel B: Temperature at y = 0.563m, centre Tunnel B: Temperature at y = 0.187m, centre. 350 350 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 300 50 250 13mm from ceiling 50mm from ceiling 200 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 0 0 0 2 4 6 8 0 2 Time [min] Tunnel B: Temperature at y = 1.313m, left 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 8 350 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 2 4 6 0 8 2 4 6 8 Time [min] Time [min] Tunnel B: Temperature at y = 1.688m, left Tunnel B: Temperature at y = 1.688m, right 350 350 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling Temperature [°C] 300 Temperature [°C] 6 Tunnel B: Temperature at y = 1.313m, right 350 50 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 0 0 0 2 4 6 8 0 2 Time [min] 4 6 8 Time [min] Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at x = 0.187m, left 25 25 20 x = 0.187m 15 x = 0.563m x = 2.875m 10 Temperature [°C] 20 Temperature [°C] 4 Time [min] 13mm from ceiling 50mm from ceiling 15 75mm from ceiling 10 100mm from ceiling 125mm from ceiling 5 5 0 0 0 2 4 Time [min] 6 8 0 2 4 Time [min] 6 8 87 Test 24 – Tunnel A+B CO concentration Tunnel B 0.3 20 0.25 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.688m 12 Concentration [vol-%] Concentration [vol-%] O2 concentration Tunnel B 22 0.2 Ch 114; y = 0.187m 0.15 Ch 117; y = 0.563m Ch 119; y = 1.688m 0.1 0.05 10 8 0 0 2 4 6 8 0 2 4 CO2 concentration Tunnel B 1200 6 1000 5 Ch 115; y = 0.187m 4 Ch 118; y = 0.563m 3 Ch 120; y = 1.688m 2 Temperature [°C] Concentration [vol-%] 8 Tunnel B: Temperature at position of fire, 13mm from ceiling 7 1 800 Left 600 Right 400 200 0 0 2 4 6 0 8 0 1 2 Time [min] 3 4 5 6 7 8 Time [min] Tunnel B: Temperature at 75mm from ceiling, centre Tunnel B: Temperature at 13mm from ceiling, left 450 45 400 40 y = 0.875m; 0.625m from fire 350 y = 1.375m; 0.125m from fire 300 250 y = 1.875m; 0.375m from fire 200 y = 2.375m; 0.875m from fire 150 y = 3m; 1.5m from fire 100 50 Temperature [°C] Temperature [°C] 6 Time [min] Time [min] y = 4.125m; 2.625m from fire 35 y = 0.187m 30 y = 0.563m 25 y = 1.313m 20 y = 1.688m 15 10 5 0 0 2 4 6 0 8 0 Time [min] 2 4 6 8 Time [min] 50 45 40 35 30 25 20 15 10 5 0 TC 0.25mm TC 0.8mm 0 2 4 Time [min] 6 8 Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. Temperature [°C] Temperature [°C] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. 50 45 40 35 30 25 20 15 10 5 0 TC 0.25mm TC 0.8mm 0 2 4 Time [min] 6 8 88 Test 24 – Tunnel A+B Tunnel B: Temperature at y = 0.563m, centre Tunnel B: Temperature at y = 0.187m, centre. 350 350 300 250 13mm from ceiling 50mm from ceiling 200 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 300 50 13mm from ceiling 250 50mm from ceiling 200 75mm from ceiling 150 100mm from ceiling 125mm from ceiling 100 50 0 0 0 2 4 6 8 0 2 Time [min] 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 8 350 300 50 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 0 0 0 2 4 6 8 0 2 Time [min] 4 6 8 Time [min] Tunnel B: Temperature at y = 1.688m, left Tunnel B: Temperature at y = 1.688m, right 350 350 300 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 125mm from ceiling 100 Temperature [°C] Temperature [°C] 6 Tunnel B: Temperature at y = 1.313m, right Tunnel B: Temperature at y = 1.313m, left 350 50 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 0 0 0 2 4 6 8 0 2 Time [min] 4 6 8 Time [min] Tunnel A: Temperature at x = 0.187m, left Tunnel A: Temperature at 75mm from ceiling, centre 25 25 20 x = 0.187m 15 x = 0.563m x = 2.875m 10 Temperature [°C] 20 Temperature [°C] 4 Time [min] 13mm from ceiling 50mm from ceiling 15 75mm from ceiling 10 100mm from ceiling 125mm from ceiling 5 5 0 0 0 2 4 Time [min] 6 8 0 2 4 Time [min] 6 8 89 Test 25 – Tunnel A+B O2 concentration Tunnel B CO concentration Tunnel B 20 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.688m 12 Concentration [vol-%] Concentration [vol-%] 22 10 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 8 Ch 114; y = 0.187m Ch 117; y = 0.563m Ch 119; y = 1.688m 0 0 2 4 6 8 10 2 4 12 6 8 10 12 Time [min] Time [min] Tunnel B: Temperature at position of fire, 13mm from ceiling 800 3.5 700 3 2.5 Ch 115; y = 0.187m 2 Ch 118; y = 0.563m 1.5 Ch 120; y = 1.688m 1 Temperature [°C] Concentration [vol-%] CO2 concentration Tunnel B 4 0.5 600 500 Left 400 Right 300 200 100 0 0 2 4 6 8 10 0 12 0 Time [min] 2 4 6 8 10 12 Time [min] Tunnel B: Temperature at 75mm from ceiling, centre Tunnel B: Temperature at 13mm from ceiling, left 40 350 35 y = 1.375m; 0.125m from fire 30 200 y = 1.875m; 0.375m from fire 150 y = 2.375m; 0.875m from fire 100 y = 3m; 1.5m from fire Temperature [°C] 50 Temperature [°C] y = 0.875m; 0.625m from fire 250 300 y = 4.125m; 2.625m from fire 2 4 6 8 10 y = 0.563m 20 y = 1.313m 15 y = 1.688m 10 5 0 0 y = 0.187m 25 0 12 0 Time [min] 2 4 6 8 10 12 Time [min] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. 50 45 40 35 30 25 20 15 10 5 0 TC 0.25mm TC 0.8mm 0 2 4 6 Time [min] 8 10 12 Temperature [°C] Temperature [°C] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. 50 45 40 35 30 25 20 15 10 5 0 TC 0.25mm TC 0.8mm 0 2 4 6 Time [min] 8 10 12 90 Test 25 – Tunnel A+B Tunnel B: Temperature at y = 0.187m, centre. Tunnel B: Temperature at y = 0.563m, centre 250 250 200 13mm from ceiling 150 50mm from ceiling 75mm from ceiling 100 100mm from ceiling 125mm from ceiling Temperature [°C] Temperature [°C] 200 50 13mm from ceiling 150 50mm from ceiling 75mm from ceiling 100 100mm from ceiling 125mm from ceiling 50 0 0 0 2 4 6 8 10 0 12 2 4 12 200 13mm from ceiling 150 50mm from ceiling 75mm from ceiling 100 100mm from ceiling 125mm from ceiling Temperature [°C] Temperature [°C] 10 250 200 50 13mm from ceiling 150 50mm from ceiling 75mm from ceiling 100 100mm from ceiling 125mm from ceiling 50 0 0 0 2 4 6 8 10 12 0 2 4 Time [min] 6 8 10 12 Time [min] Tunnel B: Temperature at y = 1.688m, left Tunnel B: Temperature at y = 1.688m, right 250 250 200 13mm from ceiling 150 50mm from ceiling 75mm from ceiling 100 100mm from ceiling 125mm from ceiling Temperature [°C] 200 Temperature [°C] 8 Tunnel B: Temperature at y = 1.313m, right Tunnel B: Temperature at y = 1.313m, left 250 50 13mm from ceiling 150 50mm from ceiling 75mm from ceiling 100 100mm from ceiling 125mm from ceiling 50 0 0 0 2 4 6 8 10 12 0 2 4 Time [min] 6 8 10 12 Time [min] Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at x = 0.187m, left 25 25 20 x = 0.187m 15 x = 0.563m x = 2.875m 10 Temperature [°C] 20 Temperature [°C] 6 Time [min] Time [min] 13mm from ceiling 15 50mm from ceiling 75mm from ceiling 10 100mm from ceiling 125mm from ceiling 5 5 0 0 0 2 4 6 Time [min] 8 10 12 0 2 4 6 Time [min] 8 10 12 91 Test 26 – Tunnel A+B CO concentration Tunnel B O2 concentration Tunnel B 0.35 20 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.688m 12 Concentration [vol-%] Concentration [vol-%] 22 10 0.3 0.25 Ch 114; y = 0.187m 0.2 Ch 117; y = 0.563m 0.15 Ch 119; y = 1.688m 0.1 0.05 8 0 0 2 4 6 8 10 12 0 2 4 6 Time [min] 900 6 800 5 Ch 115; y = 0.187m 4 Ch 118; y = 0.563m 3 Ch 120; y = 1.688m 2 Temperature [°C] Concentration [vol-%] 12 1000 700 600 Left 500 Right 400 300 200 1 100 0 0 2 4 6 8 10 0 12 0 2 4 Time [min] 6 8 10 12 Time [min] Tunnel B: Temperature at 75mm from ceiling, centre Tunnel B: Temperature at 13mm from ceiling, left 50 700 45 600 40 y = 0.875m; 0.625m from fire 500 y = 1.375m; 0.125m from fire 400 y = 1.875m; 0.375m from fire 300 y = 2.375m; 0.875m from fire 200 y = 3m; 1.5m from fire y = 4.125m; 2.625m from fire 100 Temperature [°C] Temperature [°C] 10 Tunnel B: Temperature at position of fire, 13mm from ceiling CO2 concentration Tunnel B 7 35 y = 0.187m 30 y = 0.563m 25 y = 1.313m 20 y = 1.688m 15 10 5 0 0 2 4 6 8 10 0 12 0 2 4 Time [min] TC 0.25mm TC 0.8mm 2 4 6 Time [min] 8 10 12 Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. 8 10 12 Temperature [°C] 50 45 40 35 30 25 20 15 10 5 0 0 6 Time [min] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. Temperature [°C] 8 Time [min] 50 45 40 35 30 25 20 15 10 5 0 TC 0.25mm TC 0.8mm 0 2 4 6 Time [min] 8 10 12 92 Test 26 – Tunnel A+B Tunnel B: Temperature at y = 0.187m, centre. Tunnel B: Temperature at y = 0.563m, centre 500 500 450 450 400 350 13mm from ceiling 300 50mm from ceiling 250 75mm from ceiling 200 100mm from ceiling 150 125mm from ceiling Temperature [°C] Temperature [°C] 400 100 350 13mm from ceiling 300 50mm from ceiling 250 75mm from ceiling 200 100mm from ceiling 150 125mm from ceiling 100 50 50 0 0 0 2 4 6 8 10 12 0 2 4 Time [min] 500 450 450 400 350 13mm from ceiling 300 10 12 50mm from ceiling 250 75mm from ceiling 200 100mm from ceiling 150 100 125mm from ceiling 400 Temperature [°C] Temperature [°C] 500 350 13mm from ceiling 300 50mm from ceiling 250 75mm from ceiling 200 100mm from ceiling 150 125mm from ceiling 100 50 50 0 0 0 2 4 6 8 10 12 0 2 4 Time [min] 6 8 10 12 Time [min] Tunnel B: Temperature at y = 1.688m, left Tunnel B: Temperature at y = 1.688m, right 500 500 450 450 400 400 350 13mm from ceiling 300 50mm from ceiling 250 75mm from ceiling 200 100mm from ceiling 150 125mm from ceiling Temperature [°C] Temperature [°C] 8 Tunnel B: Temperature at y = 1.313m, right Tunnel B: Temperature at y = 1.313m, left 350 13mm from ceiling 300 50mm from ceiling 250 75mm from ceiling 200 100mm from ceiling 150 125mm from ceiling 100 100 50 50 0 0 0 2 4 6 8 10 0 12 2 4 6 8 10 12 Time [min] Time [min] Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at x = 0.187m, left 25 30 25 x = 0.187m 15 x = 0.563m x = 2.875m 10 5 Temperature [°C] 20 Temperature [°C] 6 Time [min] 13mm from ceiling 20 50mm from ceiling 15 75mm from ceiling 100mm from ceiling 10 125mm from ceiling 5 0 0 0 2 4 6 Time [min] 8 10 12 0 2 4 6 Time [min] 8 10 12 93 Test 27 - Tunnel A CO concentration Tunnel A O2 concentration Tunnel A 0.04 20 18 Ch 113; x = 0.187m 16 Ch 116; x = 0.563m 14 Ch 108; x = 2.875m 12 Concentration [vol-%] Concentration [vol-%] 22 0.035 0.03 0.025 Ch 114; x = 0.187m 0.02 Ch 117; x = 0.563m 0.015 Ch 119; x = 2.875m 0.01 0.005 10 0 8 0 0 2 4 6 8 10 2 4 6 12 8 10 12 Time [min] Time [min] Tunnel A: Temperature at position of fire, 13mm from ceiling 800 0.9 0.8 700 0.7 0.6 Ch 115; x = 0.187m 0.5 Ch 118; x = 0.563m 0.4 0.3 Ch 120; x = 2.875m 0.2 0.1 Temperature [°C] Concentration [vol-%] CO2 concentration Tunnel A 1 600 500 Left 400 Centre 300 Right 200 100 0 0 2 4 6 8 10 0 12 0 2 4 Time [min] Tunnel A: Temperature at 13mm from ceiling, left 10 12 250 0.5m from fire 1m from fire 150 1.125m from fire 1.5m from fire 100 2m from fire 2.5m from fire 50 200 Temperature [°C] 200 Temperature [°C] 8 Tunnel A: Temperature at 75mm from ceiling, centre 250 0 2 4 6 8 10 x = 0.187m 150 x = 0.563m x = 2.875m 100 50 0 0 12 0 Time [min] 2 4 6 8 10 12 Time [min] Tunnel A: Comparison of temperature from two different thermocouples at x = 0.187m, 75mm from ceiling. Tunnel A: Comparison of temperature from two different thermocouples at x = 0.563m, 75mm from ceiling. 250 250 200 150 TC 0.25mm TC 0.8mm 100 50 0 Temperature [°C] Temperature [°C] 6 Time [min] 200 150 TC 0.25mm TC 0.8mm 100 50 0 0 2 4 6 Time [min] 8 10 12 0 2 4 6 Time [min] 8 10 12 94 Test 27 – Tunnel A Tunnel A: Temperature at x = 0.187m, right Tunnel A: Temperature at x = 0.187m, left 300 300 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 2 4 6 8 10 0 12 2 4 8 10 12 Tunnel A: Temperature at x = 0.563m, right Tunnel A: Temperature at x = 0.563m, left 350 350 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 125mm from ceiling 100 Temperature [°C] 300 Temperature [°C] 6 Time [min] Time [min] 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 2 4 6 Time [min] 8 10 12 0 2 4 6 Time [min] 8 10 12 95 Test 28 - Tunnel A CO concentration Tunnel A O2 concentration Tunnel A 0.1 0.09 20 18 Ch 113; x = 0.187m 16 Ch 116; x = 0.563m 14 Ch 108; x = 2.875m 12 10 Concentration [vol-%] Concentration [vol-%] 22 0.08 0.07 0.06 Ch 114; x = 0.187m 0.05 Ch 117; x = 0.563m 0.04 Ch 119; x = 2.875m 0.03 0.02 0.01 8 0 0 2 4 6 8 10 12 14 0 2 4 6 Time [min] 8 10 12 14 Time [min] Tunnel A: Temperature at position of fire, 13mm from ceiling CO2 concentration Tunnel A 200 2.5 160 Ch 115; x = 0.187m 1.5 Ch 118; x = 0.563m 1 Ch 120; x = 2.875m 0.5 Temperature [°C] Concentration [vol-%] 180 2 140 120 Left 100 Centre 80 Right 60 40 20 0 0 0 2 4 6 8 10 12 14 0 2 4 6 Time [min] 10 12 14 Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at 13mm from ceiling, left 350 250 300 200 0.5m from fire 1m from fire 150 1.125m from fire 1.5m from fire 100 2m from fire 50 2.5m from fire Temperature [°C] Temperature [°C] 8 Time [min] 250 x = 0.187m 200 x = 0.563m 150 x = 2.875m 100 50 0 0 2 4 6 8 10 12 0 14 0 Time [min] 2 4 6 8 10 12 14 Time [min] Tunnel A: Comparison of temperature from two different thermocouples at x = 0.187m, 75mm from ceiling. Tunnel A: Comparison of temperature from two different thermocouples at x = 0.563m, 75mm from ceiling. 350 300 200 150 TC 0.25mm 100 TC 0.8mm 50 Temperature [°C] Temperature [°C] 250 250 200 TC 0.25mm 150 TC 0.8mm 100 50 0 0 0 2 4 6 8 Time [min] 10 12 14 0 2 4 6 8 Time [min] 10 12 14 96 Test 28 – Tunnel A Tunnel A: Temperature at x = 0.187m, right Tunnel A: Temperature at x = 0.187m, left 300 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 2 4 6 8 10 12 0 14 2 4 Tunnel A: Temperature at x = 0.563m, left 8 10 12 14 Tunnel A: Temperature at x = 0.563m, right 350 300 300 250 250 13mm from ceiling 50mm from ceiling 200 75mm from ceiling 150 100mm from ceiling 125mm from ceiling 100 Temperature [°C] Temperature [°C] 6 Time [min] Time [min] 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 2 4 6 8 Time [min] 10 12 14 0 2 4 6 8 Time [min] 10 12 14 97 Test 291 – Tunnel A+B CO concentration Tunnel B 0.1 20 0.09 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y =1.688m 12 10 Concentration [vol-%] Concentration [vol-%] O2 concentration Tunnel B 22 0.08 0.07 0.06 Ch 114; y = 0.187m 0.05 Ch 117; y = 0.563m 0.04 Ch 119; y = 1.688m 0.03 0.02 0.01 8 0 0 2 4 6 8 10 12 0 2 4 Time [min] CO2 concentration Tunnel B 10 12 600 1 500 0.8 Ch 115; y = 0.187m 0.6 Ch 118; y = 0.563m Ch 120; y = 1.688m 0.4 0.2 Temperature [°C] Concentration [vol-%] 8 Tunnel B: Temperature at position of fire, 13mm from ceiling 1.2 400 Left 300 Right 200 100 0 0 0 2 4 6 Time [min] 1 6 Time [min] 8 10 12 0 2 4 6 8 10 12 Time [min] Burner was manually turned off after 6 minutes, so the fire did not self-extinguish as might be concluded from looking at the graphs 98 Test 292 – Tunnel A+B Tunnel B: Temperature at y = 0.187m, centre. Tunnel B: Temperature at y = 0.563m, centre 300 300 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100 100mm from ceiling 125mm from ceiling Temperature [°C] Temperature [°C] 250 50 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 0 0 0 2 4 6 8 10 12 0 2 4 Time [min] Tunnel B: Temperature at y = 1.313m, left 10 12 300 250 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 8 Tunnel B: Temperature at y = 1.313m, right 300 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 2 4 6 Time [min] 2 6 Time [min] 8 10 12 0 2 4 6 8 10 12 Time [min] Burner was manually turned off after 6 minutes, so the fire did not self-extinguish as might be concluded from the graphs. 99 Test 30 – Tunnel A+B CO concentration Tunnel B O2 concentration Tunnel B 0.09 22 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.688m 12 Concentration [vol-%] Concentration [vol-%] 0.08 20 10 0.07 0.06 Ch 114; y = 0.187m 0.05 Ch 117; y = 0.563m 0.04 Ch 119; y = 1.688m 0.03 0.02 0.01 8 0 2 4 6 8 0 10 0 2 4 Time [min] 8 10 Tunnel B: Temperature at position of fire, 13mm from ceiling CO2 concentration Tunnel B 1.4 400 1.2 350 1 Ch 115; y = 0.187m 0.8 Ch 118; y = 0.563m 0.6 Ch 120; y = 1.688m 0.4 Temperature [°C] Concentration [vol-%] 6 Tim e [m in] 300 250 Left 200 Right 150 100 0.2 50 0 0 2 4 6 8 0 10 0 2 4 Time [min] 8 10 Tunnel B: Temperature at 75mm from ceiling, centre Tunnel B: Temperature at 13mm from ceiling, left 180 180 140 120 y = 0.875m; 0.625m from fire 160 y = 1.375m; 0.125m from fire 140 y = 1.875m; 0.375m from fire 100 80 y = 2.375m; 0.875m from fire 60 y = 3m; 1.5m from fire 40 20 Temperature [°C] 160 Temperature [°C] 6 Time [min] y = 4.125m; 2.625m from fire 2 4 6 8 y = 0.187m 100 y = 0.563m y = 1.313m 80 y = 1.688m 60 40 20 0 0 120 10 0 0 Time [min] 2 4 6 8 10 Time [min] 200 180 160 140 120 100 80 60 40 20 0 TC 0.25mm TC 0.8mm 0 2 4 Time [min] 6 8 10 Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. Temperature [°C] Temperature [°C] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. 200 180 160 140 120 100 80 60 40 20 0 TC 0.25mm TC 0.8mm 0 2 4 6 Time [min] 8 10 100 Test 30 – Tunnel A+B Tunnel B: Temperature at y = 0.563m, centre Tunnel B: Temperature at y = 0.187m, centre. 250 250 200 13mm from ceiling 50mm from ceiling 150 75mm from ceiling 100 100mm from ceiling 125mm from ceiling Temperature [°C] Temperature [°C] 200 50 13mm from ceiling 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 0 0 0 2 4 6 8 10 0 2 Time [min] Tunnel B: Temperature at y = 1.313m, left 8 10 Tunnel B: Temperature at y = 1.313m, right 250 200 200 13mm from ceiling 150 50mm from ceiling 75mm from ceiling 100 100mm from ceiling 125mm from ceiling Temperature [°C] Temperature [°C] 6 Time [min] 250 50 13mm from ceiling 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 0 0 0 2 4 6 8 0 10 2 4 6 8 10 Time [min] Time [min] Tunnel B: Temperature at y = 1.688m, right Tunnel B: Temperature at y = 1.688m, left 250 250 13mm from ceiling 50mm from ceiling 150 75mm from ceiling 100 100mm from ceiling 125mm from ceiling Temperature [°C] 200 200 Temperature [°C] 4 13mm from ceiling 150 50mm from ceiling 75mm from ceiling 100 100mm from ceiling 125mm from ceiling 50 50 0 0 0 2 4 6 8 0 10 2 4 6 8 10 Time [min] Time [min] Tunnel A: Temperature at x = 0.187m, left Tunnel A: Temperature at 75mm from ceiling, centre 60 50 45 50 35 x = 0.187m 30 x = 0.563m 25 x = 2.875m 20 15 10 Temperature [°C] Temperature [°C] 40 13mm from ceiling 40 50mm from ceiling 75mm from ceiling 30 100mm from ceiling 20 125mm from ceiling 10 5 0 0 0 2 4 Time [min] 6 8 10 0 2 4 6 Time [min] 8 10 101 Test 31 – Tunnel A+B CO concentration Tunnel B O2 concentration Tunnel B 0.25 20 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.688m 12 10 Concentration [vol-%] Concentration [vol-%] 22 0.2 Ch 114; y = 0.187m 0.15 Ch 117; y = 0.563m 0.1 Ch 119; y = 1.688m 0.05 0 8 0 2 4 6 8 10 12 0 14 2 4 6 Time [min] 2 800 1.8 700 1.4 1.2 Ch 115; y = 0.187m 1 Ch 118; y = 0.563m 0.8 Ch 120; y = 1.688m 0.6 Temperature [°C] 1.6 0.4 0 14 600 500 Left 400 Right 300 200 0 0 2 4 6 8 10 12 14 0 2 4 6 Time [min] 8 10 12 14 Time [min] Tunnel B: Temperature at 75mm from ceiling, centre Tunnel B: Temperature at 13mm from ceiling, left 200 350 300 y = 0.875m; 0.625m from fire 250 y = 1.375m; 0.125m from fire 200 y = 1.875m; 0.375m from fire 150 y = 2.375m; 0.875m from fire 100 y = 3m; 1.5m from fire 180 160 Temperature [°C] Temperature [°C] 12 100 0.2 y = 4.125m; 2.625m from fire 50 140 y = 0.187m 120 y = 0.563m 100 y = 1.313m 80 y = 1.688m 60 40 20 0 0 2 4 6 8 10 12 0 14 0 2 4 Time [min] 120 100 80 TC 0.25mm TC 0.8mm 60 40 20 0 4 6 8 Time [min] 10 12 14 Temperature [°C] 160 140 2 8 10 12 14 Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. 200 180 0 6 Time [min] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. Temperature [°C] 10 Tunnel B: Temperature at position of fire, 13mm from ceiling CO2 concentration Tunnel B Concentration [vol-%] 8 Time [min] 200 180 160 140 120 100 80 60 40 20 0 TC 0.25mm TC 0.8mm 0 2 4 6 8 Time [min] 10 12 14 102 Test 31 – Tunnel A+B Tunnel B: Temperature at y = 0.187m, centre. Tunnel B: Temperature at y = 0.563m, centre 500 500 450 450 400 350 13mm from ceiling 300 50mm from ceiling 250 75mm from ceiling 200 100mm from ceiling 150 125mm from ceiling Temperature [°C] Temperature [°C] 400 350 13mm from ceiling 300 250 50mm from ceiling 200 100mm from ceiling 150 125mm from ceiling 100 100 50 50 75mm from ceiling 0 0 0 2 4 6 8 10 12 0 14 5 Tunnel B: Temperature at y = 1.313m, right Tunnel B: Temperature at y = 1.313m, left 500 450 400 13mm from ceiling 350 300 250 200 150 50mm from ceiling 75mm from ceiling 100mm from ceiling 125mm from ceiling 100 50 0 Temperature [°C] Temperature [°C] 500 450 400 350 13mm from ceiling 300 50mm from ceiling 250 75mm from ceiling 200 100mm from ceiling 150 125mm from ceiling 100 50 0 5 0 10 0 2 4 6 Time [min] 8 10 12 14 Time [min] Tunnel B: Temperature at y = 1.688m, left 500 450 400 350 300 250 200 150 100 50 0 Tunnel B: Temperature at y = 1.688m, right 500 450 13mm from ceiling 50mm from ceiling 75mm from ceiling 100mm from ceiling 125mm from ceiling Temperature [°C] Temperature [°C] 10 Time [min] Time [min] 400 350 13mm from ceiling 300 250 200 50mm from ceiling 150 100 125mm from ceiling 75mm from ceiling 100mm from ceiling 50 0 0 2 4 6 8 10 12 14 0 5 Time [min] 10 Time [min] Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at x = 0.187m, left 50 60 45 50 35 30 x = 0.187m 25 x = 0.563m 20 x = 2.875m 15 10 Temperature [°C] Temperature [°C] 40 13mm from ceiling 40 50mm from ceiling 30 75mm from ceiling 100mm from ceiling 20 125mm from ceiling 10 5 0 0 0 2 4 6 8 Time [min] 10 12 14 0 2 4 6 8 Time [min] 10 12 14 103 Test 32 – Tunnel A+B CO concentration Tunnel B O2 concentration Tunnel B 0.08 20 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.688m 12 Concentration [vol-%] Concentration [vol-%] 22 0.07 0.06 0.05 Ch 114; y = 0.187m 0.04 Ch 117; y = 0.563m 0.03 Ch 119; y = 1.688m 0.02 0.01 10 0 8 0 2 4 6 8 0 10 2 4 CO2 concentration Tunnel B 400 0.4 350 0.35 0.3 Ch 115; y = 0.187m 0.25 Ch 118; y = 0.563m 0.2 Ch 120; y = 1.688m 0.15 0.1 0.05 10 300 250 Left 200 Right 150 100 50 0 0 2 4 6 8 0 10 0 2 4 Time [min] 6 8 10 Time [min] Tunnel B: Temperature at 75mm from ceiling, centre Tunnel B: Temperature at 13mm from ceiling, left 60 200 180 y = 0.875m; 0.625m from fire 160 140 120 y = 1.375m; 0.125m from fire y = 1.875m; 0.375m from fire 100 80 60 40 y = 2.375m; 0.875m from fire y = 3m; 1.5m from fire 50 Temperature [°C] Temperature [°C] 8 Tunnel B: Temperature at position of fire, 13mm from ceiling 0.45 Temperature [°C] Concentration [vol-%] 6 Time [min] Time [min] y = 4.125m; 2.625m from fire 20 0 0 2 4 6 8 y = 0.187m 40 y = 0.563m 30 y = 1.313m y = 1.688m 20 10 0 10 0 Time [min] 2 4 6 8 10 Time [min] 200 180 160 140 120 100 80 60 40 20 0 TC 0.25mm TC 0.8mm 0 2 4 6 Time [min] 8 10 Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. Temperature [°C] Temperature [°C] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. 200 180 160 140 120 100 80 60 40 20 0 TC 0.25mm TC 0.8mm 0 2 4 Time [min] 6 8 10 104 Test 32 – Tunnel A+B Tunnel B: Temperature at y = 0.187m, centre. Tunnel B: Temperature at y = 0.563m, centre 300 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 2 4 6 8 0 10 2 Tunnel B: Temperature at y = 1.313m, left 8 10 300 250 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 6 Tunnel B: Temperature at y = 1.313m, right 300 50 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 0 0 2 4 6 8 0 10 0 2 Time [min] 4 6 8 10 Time [min] Tunnel B: Temperature at y = 1.688m, right Tunnel B: Temperature at y = 1.688m, left 300 300 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling Temperature [°C] 250 Temperature [°C] 4 Time [min] Time [min] 50 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 0 0 0 2 4 6 8 10 0 2 Time [min] 4 6 8 10 Time [min] Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at x = 0.187m, left 50 60 45 50 35 x = 0.187m 30 x = 0.563m 25 x = 2.875m 20 15 10 Temperature [°C] Temperature [°C] 40 13mm from ceiling 40 50mm from ceiling 30 75mm from ceiling 100mm from ceiling 20 125mm from ceiling 10 5 0 0 0 2 4 Time [min] 6 8 10 0 2 4 6 Time [min] 8 10 105 Test 33 – Tunnel A+B CO concentration Tunnel B 0.16 20 0.14 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.688m 12 Concentration [vol-%] Concentration [vol-%] O2 concentration Tunnel B 22 10 0.12 0.1 Ch 114; y = 0.187m 0.08 Ch 117; y = 0.563m 0.06 Ch 119; y = 1.688m 0.04 0.02 0 8 0 2 4 6 8 0 10 2 4 6 8 10 Time [min] Time [min] CO2 concentration Tunnel B Tunnel B: Temperature at position of fire, 13mm from ceiling 500 2.5 400 Ch 115; y = 0.187m 1.5 Ch 118; y = 0.563m 1 Ch 120; y = 1.688m Temperature [°C] Concentration [vol-%] 450 2 0.5 350 300 Left 250 Centre 200 Right 150 100 50 0 0 0 2 4 6 8 10 0 2 4 Time [min] 10 120 100 100 0.5m from fire 80 1m from fire 1.5m from fire 60 2m from fire 2.5m from fire 40 3.75m from fire Temperature [°C] Temperature [°C] 8 Tunnel B: Temperature at 75mm from ceiling, centre Tunnel B: Temperature at 13mm from ceiling, left 120 20 80 y = 0.187m y = 0.563m 60 y = 1.313m y = 1.688m 40 20 0 0 0 2 4 6 8 10 0 2 4 Time [min] 6 8 10 Time [min] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. 60 60 50 50 40 TC 0.25mm 30 TC 0.8mm 20 Temperature [°C] Temperature [°C] 6 Time [min] 40 TC 0.25mm 30 TC 0.8mm 20 10 10 0 0 0 2 4 Time [min] 6 8 10 0 2 4 Time [min] 6 8 10 106 Test 33 – Tunnel A+B Tunnel B: Temperature at y = 0.187m, centre. Tunnel B: Temperature at y = 0.563m, centre 200 200 180 180 160 140 13mm from ceiling 120 50mm from ceiling 100 75mm from ceiling 80 100mm from ceiling 60 125mm from ceiling 40 Temperature [°C] Temperature [°C] 160 140 13mm from ceiling 120 50mm from ceiling 100 75mm from ceiling 80 100mm from ceiling 60 125mm from ceiling 40 20 20 0 0 0 2 4 6 8 10 0 2 Time [min] 8 10 Tunnel B: Temperature at y = 1.313m, right 200 200 180 180 160 140 13mm from ceiling 120 50mm from ceiling 100 75mm from ceiling 80 100mm from ceiling 60 125mm from ceiling Temperature [°C] 160 Temperature [°C] 6 Time [min] Tunnel B: Temperature at y = 1.313m, left 140 13mm from ceiling 120 50mm from ceiling 100 75mm from ceiling 80 100mm from ceiling 60 125mm from ceiling 40 40 20 20 0 0 0 2 4 6 8 10 0 2 Time [min] 4 6 8 10 Time [min] Tunnel B: Temperature at y = 1.688m, left Tunnel B: Temperature at y = 1.688m, right 200 200 180 180 160 140 13mm from ceiling 120 50mm from ceiling 100 75mm from ceiling 80 100mm from ceiling 125mm from ceiling 40 60 40 20 20 140 13mm from ceiling 120 50mm from ceiling 100 75mm from ceiling 80 100mm from ceiling 60 125mm from ceiling Temperature [°C] 160 Temperature [°C] 4 0 0 0 2 4 6 8 0 10 2 4 6 8 10 Time [min] Time [min] Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at x = 0.187m, left 30 50 45 40 20 x = 0.187m x = 0.563m 15 x = 2.875m 10 Temperature [°C] Temperature [°C] 25 35 13mm from ceiling 30 50mm from ceiling 25 75mm from ceiling 20 100mm from ceiling 15 125mm from ceiling 10 5 5 0 0 0 2 4 Time [min] 6 8 10 0 2 4 6 Time [min] 8 10 107 Test 34 – Tunnel A+B CO concentration Tunnel B 0.3 20 0.25 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.688m 12 10 Concentration [vol-%] Concentration [vol-%] O2 concentration Tunnel B 22 0.2 Ch 114; y = 0.187m 0.15 Ch 117; y = 0.563m Ch 119; y = 1.688m 0.1 0.05 8 0 0 2 4 6 8 10 0 2 4 Time [min] CO2 concentration Tunnel B 900 3.5 2.5 Ch 115; y = 0.187m 2 Ch 118; y = 0.563m 1.5 Ch 120; y = 1.688m 1 Temperature [°C] 800 3 700 600 Left 500 Centre 400 Right 300 200 100 0 0 0 2 4 6 8 10 0 2 4 Time [min] 6 8 10 Time [min] Tunnel B: Temperature at 13mm from ceiling, left Tunnel B: Temperature at 75mm from ceiling, centre 160 160 140 140 120 0.5m from fire 100 1m from fire 1.5m from fire 80 2m from fire 60 2.5m from fire 40 3.75m from fire Temperature [°C] Temperature [°C] 10 Tunnel B: Temperature at position of fire, 13mm from ceiling 0.5 20 120 y = 0.187m 100 y = 0.563m 80 y = 1.313m 60 y = 1.688m 40 20 0 0 0 2 4 6 8 10 0 2 4 Time [min] 6 8 10 Time [min] Tunnel B: Comparison of temperature from two different thermocouples at y = 1.688m, 75mm from ceiling. Tunnel B: Comparison of temperature from two different thermocouples at y = 1.313m, 75mm from ceiling. 80 80 70 70 60 50 TC 0.25mm 40 TC 0.8mm 30 20 10 Temperature [°C] Temperature [°C] 8 1000 4 Concentration [vol-%] 6 Time [min] 60 50 TC 0.25mm 40 TC 0.8mm 30 20 10 0 0 0 2 4 6 Time [min] 8 10 0 2 4 6 Time [min] 8 10 108 Test 34 – Tunnel A+B Tunnel B: Temperature at y = 0.563m, centre Tunnel B: Temperature at y = 0.187m, centre. 350 350 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 2 4 6 8 0 10 2 8 10 350 350 300 250 13mm from ceiling 50mm from ceiling 200 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling Temperature [°C] 300 Temperature [°C] 6 Tunnel B: Temperature at y = 1.313m, right Tunnel B: Temperature at y = 1.313m, left 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 2 4 6 8 0 10 2 4 6 8 10 Time [min] Time [min] Tunnel B: Temperature at y = 1.688m, right Tunnel B: Temperature at y = 1.688m, left 350 350 300 300 250 13mm from ceiling 200 50mm from ceiling 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 4 Time [min] Time [min] 50 250 13mm from ceiling 50mm from ceiling 200 75mm from ceiling 150 100mm from ceiling 100 125mm from ceiling 50 0 0 0 2 4 6 8 10 0 2 Time [min] 4 6 8 10 Time [min] Tunnel A: Temperature at 75mm from ceiling, centre Tunnel A: Temperature at x = 0.187m, left 50 30 45 40 20 x = 0.187m x = 0.563m 15 x = 2.875m 10 Temperature [°C] Temperature [°C] 25 35 13mm from ceiling 30 50mm from ceiling 25 75mm from ceiling 20 100mm from ceiling 15 125mm from ceiling 10 5 5 0 0 0 2 4 6 Time [min] 8 10 0 2 4 6 Time [min] 8 10 109 Test 353 – Tunnel A+B CO concentration Tunnel B 0.14 20 0.12 18 Ch 113; y = 0.187m 16 Ch 116; y = 0.563m 14 Ch 108; y = 1.688m 12 Concentration [vol-%] Concentration [vol-%] O2 concentration Tunnel B 22 10 0.1 Ch 114; y = 0.187m 0.08 Ch 117; y = 0.563m 0.06 Ch 119; y = 1.688m 0.04 0.02 0 8 0 2 4 6 8 0 10 2 4 CO2 concentration Tunnel B 8 10 Tunnel B: Temperature at position of fire, 13mm from ceiling 2.5 600 2 500 1.5 Ch 115; y = 0.187m Ch 118; y = 0.563m 1 Ch 120; y =1.688m 0.5 Temperature [°C] Concentration [vol-%] 6 Time [min] Time [min] 400 Left 300 Centre Right 200 100 0 0 2 4 6 Time [min] 8 10 0 0 2 4 6 8 10 Time [min] 3 Burner was manually turned off after 5 min 45s, so the fire did not self-extinguish as might be concluded from the graphs. 110 Test 354 – Tunnel A+B Tunnel B: Temperature at y = 0.187m, centre. Tunnel B: Temperature at y = 0.563m, centre 250 250 200 13mm from ceiling 50mm from ceiling 150 75mm from ceiling 100 100mm from ceiling 125mm from ceiling Temperature [°C] Temperature [°C] 200 50 13mm from ceiling 150 50mm from ceiling 75mm from ceiling 100 100mm from ceiling 125mm from ceiling 50 0 0 0 2 4 6 8 10 0 2 Time [min] Tunnel B: Temperature at y = 1.313m, left 8 10 Tunnel B: Temperature at y = 1.313m, right 250 200 200 13mm from ceiling 150 50mm from ceiling 75mm from ceiling 100 100mm from ceiling 125mm from ceiling Temperature [°C] Temperature [°C] 6 Time [min] 250 13mm from ceiling 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 2 4 6 Time [min] 4 4 8 10 0 2 4 6 8 10 Time [min] Burner was manually turned off after 5 min 45 s, so the fire did not self-extinguish as might be concluded from looking at the graphs. 111 Test 36 - Tunnel A O2 concentration Tunnel A CO concentration Tunnel A 22 Concentration [vol-%] 20 18 Ch 113; x = 0.187m 16 Ch 116; x = 0.563m 14 Ch 108; x = 2.875m 12 Concentration [vol-%] 0.25 0.2 0.15 Ch 114; x = 0.187m Ch 117; x = 0.563m 0.1 Ch 119; x = 2.875m 0.05 10 0 8 0 2 4 6 8 0 10 2 4 6 8 10 Time [min] Time [min] Tunnel A: Temperature at position of fire, 13mm from ceiling CO2 concentration Tunnel A 1000 6 800 4 Ch 115; x = 0.187m 3 Ch 118; x = 0.563m Ch 120; x = 2.875m 2 Temperature [°C] Concentration [vol-%] 900 5 700 600 Left 500 Centre 400 Right 300 200 1 100 0 0 2 4 6 8 0 10 0 2 4 Time [min] Tunnel A: Temperature at 13mm from ceiling, left 8 10 Tunnel A: Temperature at 75mm from ceiling, centre 180 50 160 45 140 0.5m from fire 120 1m from fire 100 1.125m from fire 80 1.5m from fire 60 2m from fire 40 2.5m from fire 40 Temperature [°C] Temperature [°C] 6 Time [min] 35 x = 0.187m 30 x = 0.563m 25 x = 2.875m 20 15 10 20 5 0 0 2 4 6 8 0 10 0 Time [min] 2 4 6 8 10 Time [min] 50 45 40 35 30 25 20 15 10 5 0 Tunnel A: Comparison of temperature from two different thermocouples at x = 0.563m, 75mm from ceiling. TC 0.25mm TC 0.8mm 0 2 4 6 Time [min] 8 10 Temperature [°C] Temperature [°C] Tunnel A: Comparison of temperature from two different thermocouples at x = 0.187m, 75mm from ceiling. 50 45 40 35 30 25 20 15 10 5 0 TC 0.25mm TC 0.8mm 0 2 4 Time [min] 6 8 10 112 Test 36 – Tunnel A Tunnel A: Temperature at x = 0.187m, left Tunnel A: Temperature at x = 0.187m, right 300 300 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling Temperature [°C] Temperature [°C] 250 50 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 0 0 0 2 4 6 8 0 10 2 6 8 10 Tunnel A: Temperature at x = 0.563m, right Tunnel A: Temperature at x = 0.563m, left 300 300 250 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling Temperature [°C] 250 Temperature [°C] 4 Time [min] Time [min] 13mm from ceiling 200 50mm from ceiling 150 75mm from ceiling 100mm from ceiling 100 125mm from ceiling 50 50 0 0 0 2 4 6 Time [min] 8 10 0 2 4 6 Time [min] 8 10 SP Sveriges utvecklar och förmedlar teknik för näringslivets TechnicalTekniska ResearchForskningsinstitut Institute of Sweden develops and transfers technology for utveckling competitiveness och konkurrenskraft för säkerhet, hållbar tillväxt och god miljö i samhället. Vi improving and och quality in industry, and for safety, conservation of resources har bredaste och mest kvalificerade resurser för teknisk utvärdering, mätteknik, and Sveriges good environment in society as a whole. With Sweden’s widest and most sophisticated forskning och utveckling. Vår forskning sker i nära samverkanmeasurement, med högskola,testing universitet range of equipment and expertise for technical investigation, and och internationella är ca 870 medarbetare som bygger våra with tjänster på kompetens, certification, wekolleger. performVi research and development in close liaison universities, institutes effektivitet, opartiskhet och internationell of technology and international partners. acceptans. SP is a EU-notified body and accredited test laboratory. Our headquarters are in Borås, in the west part of Sweden. SP Technical Research Institute of Sweden Fire Technology Box 857, SE-501 15 BORÅS, SWEDEN, SWEDEN SP Report 2010:86 Telephone: +46 10 516 50 00, Telefax: +46 33 13 55 02 ISBN 978-91-86622-36-7 E-mail: info@sp.se, Internet: www.sp.se ISSN 0284-5172 www.sp.se