ADsorption chiller technology

Weatherite
Proven expertise from a leading manufacturer
As part of the Kyoto protocol, the UK Government
Weatherite is leading the way in delivering energy
is committed to substantially reduce the nation’s
saving, environmentally friendly solutions using the
CO emissions over the next ten years. Many of
latest ADsorption chiller technology. As well as design
the Uk’s leading businesses have also outlined their
expertise, Weatherite has the ability to manufacture
commitment to cutting their energy consumption and
large-scale trigeneration plantrooms within a clean
carbon footprint. The world is following suit, as
and efficient manufacturing facility before they are
globally, organisations seek environmentally friendly
delivered and installed on site. This approach offers
solutions to their energy usage.
excellent cost saving benefits and ensures on site
2
disruption is kept to an absolute minimum.
ADsorption chiller technology can significantly
contribute towards a greener, energy efficient
environment.
ADsorption chiller technology
for energy efficient low carbon, sustainable solutions
The Weatherite Group
Weatherite Manufacturing Ltd is part of
the Weatherite Group, one of the UK’s leading
HVAC and Building Services organisations.
l Weatherite
Manufacturing Ltd
l Weatherite
Building Services Ltd
l Weatherite
Service and Maintenance Ltd
l Weatherite
Electrical Ltd
l Weatherite
Shopfronts and Shutters Ltd
www.weatheritegroup.com
Weatherite Manufacturing Limited
Weatherite House,
Credenda Road,
West Bromwich, West Midlands
B70 7JE England
T 0121 665 2266
F 0121 665 2277
E wmlsales@weatheriteroup.com
The significant benefits of ADsorption chillers have
been realised throughout the world in recent years with
successful applications in the USA, Japan and Europe.
The ADsorption chiller offers huge energy and carbon
saving potential, not only within a trigeneration application
(i.e. combined cooling, heating and power) but also in any
application where an abundance of waste heat is produced
and a requirement for cooling or refrigeration exists.
ADsorption chillers are also ideal for solar thermal applications
and can also be used alongside district heating systems.
Designed to operate 24/7, ADsorption chillers are
programmed by controller sensors, ensuring they
operate at high efficiency – even with variable loads. The
ADsorption chiller produces chilled water in only seven
minutes from start-up, which can then be used for cooling,
ADsorption chiller technology
Serious concerns for the environment have focused
everyone’s attention on the future of our planet. Whether
refrigeration or heat rejection.
the energy efficient solution
Maximised output with minimised impact and lower costs
you’re a major retailer, manufacturer, hospital, local authority or
commercial organisation, the race is on to reduce energy costs,
cut carbon emissions and help protect the environment.
Almost all modern facilities use energy to generate the power
required for lighting, IT, cooling, refrigeration and other building
services. The resultant fuel costs and levels of CO2 produced can
be staggering - not to mention the impact on global warming.
Introducing ADsorption chiller technology
Efficient energy conservation can be achieved by using available
waste heat from an ADsorption chiller for various applications
as part of a trigeneration system. Most trigeneration systems
currently use absorption chillers but in these modern challenging
times there is a far better alternative: the ADsorption chiller.
ADsorption technology is the way forward in waste heat
utilisation. It offers a highly reliable, efficient solution that
takes waste heat from the cogeneration process to operate the
chiller. Not only does an ADsorption chiller provide continuous
operation with remarkable efficiency, it is also safer for the
environment and offers much lower life cycle costs.
The ADsorption chiller is an exciting addition to
Weatherite’s range of energy efficient air conditioning
equipment. As the only company in Europe with sole
manufacturing rights, Weatherite has the expertise,
skill and resource to provide high energy efficient,
environmentally friendly solutions to suit our clients’ needs.
The significant benefits of ADsorption chillers have
been realised throughout the world in recent years with
successful applications in the USA, Japan and Europe.
The ADsorption chiller offers huge energy and carbon
saving potential, not only within a trigeneration application
(i.e. combined cooling, heating and power) but also in any
application where an abundance of waste heat is produced
and a requirement for cooling or refrigeration exists.
ADsorption chillers are also ideal for solar thermal applications
and can also be used alongside district heating systems.
Designed to operate 24/7, ADsorption chillers are
programmed by controller sensors, ensuring they
operate at high efficiency – even with variable loads. The
ADsorption chiller produces chilled water in only seven
minutes from start-up, which can then be used for cooling,
ADsorption chiller technology
Serious concerns for the environment have focused
everyone’s attention on the future of our planet. Whether
refrigeration or heat rejection.
the energy efficient solution
Maximised output with minimised impact and lower costs
you’re a major retailer, manufacturer, hospital, local authority or
commercial organisation, the race is on to reduce energy costs,
cut carbon emissions and help protect the environment.
Almost all modern facilities use energy to generate the power
required for lighting, IT, cooling, refrigeration and other building
services. The resultant fuel costs and levels of CO2 produced can
be staggering - not to mention the impact on global warming.
Introducing ADsorption chiller technology
Efficient energy conservation can be achieved by using available
waste heat from an ADsorption chiller for various applications
as part of a trigeneration system. Most trigeneration systems
currently use absorption chillers but in these modern challenging
times there is a far better alternative: the ADsorption chiller.
ADsorption technology is the way forward in waste heat
utilisation. It offers a highly reliable, efficient solution that
takes waste heat from the cogeneration process to operate the
chiller. Not only does an ADsorption chiller provide continuous
operation with remarkable efficiency, it is also safer for the
environment and offers much lower life cycle costs.
The ADsorption chiller is an exciting addition to
Weatherite’s range of energy efficient air conditioning
equipment. As the only company in Europe with sole
manufacturing rights, Weatherite has the expertise,
skill and resource to provide high energy efficient,
environmentally friendly solutions to suit our clients’ needs.
The way forward in waste heat utilisation
Waste heat recovery
Non-hazardous
An ADsorption chiller is a highly reliable,
The chiller can be used in applications where there is a
With water as refrigerant, any pipework or valve work can
efficient solution that takes waste heat to
waste heat source, for example heat recovery off a process
be undertaken easily as there are no hazardous substances
produce chilled water, which in turn can be
or via a co-generation process. The highly efficient chiller
such as lithium bromide or ammonia.
used for cooling and linked into refrigeration
offers exceptional cooling capabilities and uses water as its
applications. ADsorption technology produces
cooling agent, so it’s highly environmentally friendly. The
The chiller has a life expectancy of 20-30 years and end of
chilled water down to as low as 3º C as required,
water evaporates in a vacuum and thereby extracts heat
life disposal is simple as the chiller is almost fully recyclable
making it ideal for any application with a
from its surroundings (evaporating-energy). Through this
and has no hazardous refrigerants to dispose of.
high cooling demand such as process cooling,
process, cooling takes place.
supermarkets and data centres. The ADsorption
What is an
chiller is also ideal for solar thermal cooling
There are no high voltage motors or large compressors and
applications.
no external temperature controls are required for capacity
control or to protect the chiller.
ADsorption chiller?
Case Study
Swindon
The Solution
The objective was to design, manufacture and deliver a fully
packaged integrated solution built off-site, to minimise on-site
disruption and costs, which would deliver substantial energy
savings and also reduce harmful, damaging carbon emissions.
This was achieved by maximising the use of the available waste
heat generated by the integral (CHP) power engines and using
this waste heat to drive the ADsorption chiller.
Through the adsorption process the ADsorption chiller provides
Minimal maintenance
Background
the store’s chilled water for the air conditioning system and, as
a lower heat source, thereby delivering cooling
Tesco has made the reduction of its carbon footprint
The trigeneration plantroom, incorporating the ADsorption
to an absolute minimum too. Simplicity of operation makes
solutions to a wider range of applications. It also
a major business driver and plans to halve the carbon
chiller, was designed to provide outputs of 600kw electricity,
the chiller extremely reliable and safe, with low operating costs.
has the ability to operate at low temperatures
footprint of its existing operations by 2020. As part of this
900kw thermal heating load at 90ºC flow / 85ºC return and
(down to 3ºC) and within a wide range of
commitment, Tesco identified a number of stores where a
529kw thermal cooling load of chilled water at 6ºC flow /
There are no hazardous substances such as lithium bromide
temperatures from 50ºC to 90ºC. Even with a ‘flat
trigeneration plantroom, incorporating ADsorption chiller
11ºC return.
or ammonia within the chiller. Instead, it uses a natural
performance curve’, the chiller still provides 90%
technology, could be trialed. The Swindon outlet was
The localised generation of electricity via the power engines
substance, silica gel plus water as a refrigerant, making the
capacity at 70ºC hot water input.
selected as one of the trial applications.
within the plantroom now provides the store with up to 100%
Because the ADsorption chiller operates on such a simple
The ADsorption chiller can operate efficiently with
process, the downtime is minimal and maintenance is kept
whole process highly environmentally friendly.
Tesco chose Weatherite as part of the delivery team
because of its expertise in delivering energy efficient
engineering solutions and its understanding of the
ADsorption chiller technology.
necessary, linking into the store’s refrigeration system.
of its electricity demand and, by incorporating the ADsorption
chiller within the design, the stores CO2 emission’s are reduced
in excess of 20%.
The way forward in waste heat utilisation
Waste heat recovery
Non-hazardous
An ADsorption chiller is a highly reliable,
The chiller can be used in applications where there is a
With water as refrigerant, any pipework or valve work can
efficient solution that takes waste heat to
waste heat source, for example heat recovery off a process
be undertaken easily as there are no hazardous substances
produce chilled water, which in turn can be
or via a co-generation process. The highly efficient chiller
such as lithium bromide or ammonia.
used for cooling and linked into refrigeration
offers exceptional cooling capabilities and uses water as its
applications. ADsorption technology produces
cooling agent, so it’s highly environmentally friendly. The
The chiller has a life expectancy of 20-30 years and end of
chilled water down to as low as 3º C as required,
water evaporates in a vacuum and thereby extracts heat
life disposal is simple as the chiller is almost fully recyclable
making it ideal for any application with a
from its surroundings (evaporating-energy). Through this
and has no hazardous refrigerants to dispose of.
high cooling demand such as process cooling,
process, cooling takes place.
supermarkets and data centres. The ADsorption
What is an
chiller is also ideal for solar thermal cooling
There are no high voltage motors or large compressors and
applications.
no external temperature controls are required for capacity
control or to protect the chiller.
ADsorption chiller?
Case Study
Swindon
The Solution
The objective was to design, manufacture and deliver a fully
packaged integrated solution built off-site, to minimise on-site
disruption and costs, which would deliver substantial energy
savings and also reduce harmful, damaging carbon emissions.
This was achieved by maximising the use of the available waste
heat generated by the integral (CHP) power engines and using
this waste heat to drive the ADsorption chiller.
Through the adsorption process the ADsorption chiller provides
Minimal maintenance
Background
the store’s chilled water for the air conditioning system and, as
a lower heat source, thereby delivering cooling
Tesco has made the reduction of its carbon footprint
The trigeneration plantroom, incorporating the ADsorption
to an absolute minimum too. Simplicity of operation makes
solutions to a wider range of applications. It also
a major business driver and plans to halve the carbon
chiller, was designed to provide outputs of 600kw electricity,
the chiller extremely reliable and safe, with low operating costs.
has the ability to operate at low temperatures
footprint of its existing operations by 2020. As part of this
900kw thermal heating load at 90ºC flow / 85ºC return and
(down to 3ºC) and within a wide range of
commitment, Tesco identified a number of stores where a
529kw thermal cooling load of chilled water at 6ºC flow /
There are no hazardous substances such as lithium bromide
temperatures from 50ºC to 90ºC. Even with a ‘flat
trigeneration plantroom, incorporating ADsorption chiller
11ºC return.
or ammonia within the chiller. Instead, it uses a natural
performance curve’, the chiller still provides 90%
technology, could be trialed. The Swindon outlet was
The localised generation of electricity via the power engines
substance, silica gel plus water as a refrigerant, making the
capacity at 70ºC hot water input.
selected as one of the trial applications.
within the plantroom now provides the store with up to 100%
Because the ADsorption chiller operates on such a simple
The ADsorption chiller can operate efficiently with
process, the downtime is minimal and maintenance is kept
whole process highly environmentally friendly.
Tesco chose Weatherite as part of the delivery team
because of its expertise in delivering energy efficient
engineering solutions and its understanding of the
ADsorption chiller technology.
necessary, linking into the store’s refrigeration system.
of its electricity demand and, by incorporating the ADsorption
chiller within the design, the stores CO2 emission’s are reduced
in excess of 20%.
The operating principle
The ADsorption chiller works on a proven and simple
design principle.
It consists of four chambers:
The evaporator located at the bottom of the machine
The condenser – at the top of the machine
Two central ADsorption chambers
The two central ADsorption chambers contain heat
exchangers packed with silica, with a valve between them
to allow vapour pressure equalization. Between each
central ADsorption chamber and the “evaporator” and
“condenser” chambers, valves allow the transfer of vapour
when there is sufficient pressure differential.
r out
te
Cooling wa
There are three water sources to the chiller:
1 Waste hot water from the cogeneration process
r
The water flow is directed to the specific
alternates between the two central ADsorption
areas of the chiller by control valves
heat exchangers and drives out the moisture
which are automatically sequenced by
previously adsorbed by the silica.
the chiller’s on board controller.
3 The cooling water supplies the condenser
Cooling
water
out
Hot
t
water ou
2 The evaporator is fed by a constant flow of
chilled water return and supply.
e
Condens
The charge of refrigerant (water) within
the chiller is circulated around the
section and alternates between the two
chambers by means of vapour pressure
ADsorption heat exchangers. The cooling water
differential and a gravity drain from the
is pumped to a remote heat rejection system.
condenser section where it has been
(Cooling tower, adiabatic cooler, low grade heat
condensed from a vapour to a liquid.
Cooling
water in
reclaim, etc).
The drained water is collected at the
bottom of the machine and pumped into
a distribution header which sprays the
fluid over the evaporator heat exchanger.
ion
ADsorpt ger
han
Heat Exc
Hot
water in
ion
ADsorpt ger
han
Heat Exc
This section is at lower pressure and the
water fluid evaporates when in contact
with the heat exchanger and in doing so
absorbs heat from the evaporator tube
bundle, providing a chilling effect to the
Chilled t
water ou
water within.
One complete cycle takes around seven
minutes and capacity control is achieved
by shortening the cycle time.
tor
Evapora
Chilled
water in
ADsorption Chiller Schematic
Simple, safe, low-cost operation and maintenance
In comparison to conventional air conditioning and refrigeration, ADsorption chiller
technology can deliver a substantial reduction in both primary energy consumption
and carbon emissions.
The ADsoption chiller can operate efficiently with a lower heat source thereby
delivering cooling solutions to a wider range of applications.
Because the ADsorption chiller uses such a simple process, the downtime is minimal
and maintenance is also kept to an absolute minimum.
The are no hazardous substances within the chiller (i.e. lithium bromide or ammonia);
it uses silica gel (a natural substance) and water as a refrigerant. Therefore, the whole
process is highly environmentally friendly - right through to end of life disposal.
The operating principle
The ADsorption chiller works on a proven and simple
design principle.
It consists of four chambers:
The evaporator located at the bottom of the machine
The condenser – at the top of the machine
Two central ADsorption chambers
The two central ADsorption chambers contain heat
exchangers packed with silica, with a valve between them
to allow vapour pressure equalization. Between each
central ADsorption chamber and the “evaporator” and
“condenser” chambers, valves allow the transfer of vapour
when there is sufficient pressure differential.
r out
te
Cooling wa
There are three water sources to the chiller:
1 Waste hot water from the cogeneration process
r
The water flow is directed to the specific
alternates between the two central ADsorption
areas of the chiller by control valves
heat exchangers and drives out the moisture
which are automatically sequenced by
previously adsorbed by the silica.
the chiller’s on board controller.
3 The cooling water supplies the condenser
Cooling
water
out
Hot
t
water ou
2 The evaporator is fed by a constant flow of
chilled water return and supply.
e
Condens
The charge of refrigerant (water) within
the chiller is circulated around the
section and alternates between the two
chambers by means of vapour pressure
ADsorption heat exchangers. The cooling water
differential and a gravity drain from the
is pumped to a remote heat rejection system.
condenser section where it has been
(Cooling tower, adiabatic cooler, low grade heat
condensed from a vapour to a liquid.
Cooling
water in
reclaim, etc).
The drained water is collected at the
bottom of the machine and pumped into
a distribution header which sprays the
fluid over the evaporator heat exchanger.
ion
ADsorpt ger
han
Heat Exc
Hot
water in
ion
ADsorpt ger
han
Heat Exc
This section is at lower pressure and the
water fluid evaporates when in contact
with the heat exchanger and in doing so
absorbs heat from the evaporator tube
bundle, providing a chilling effect to the
Chilled t
water ou
water within.
One complete cycle takes around seven
minutes and capacity control is achieved
by shortening the cycle time.
tor
Evapora
Chilled
water in
ADsorption Chiller Schematic
Simple, safe, low-cost operation and maintenance
In comparison to conventional air conditioning and refrigeration, ADsorption chiller
technology can deliver a substantial reduction in both primary energy consumption
and carbon emissions.
The ADsoption chiller can operate efficiently with a lower heat source thereby
delivering cooling solutions to a wider range of applications.
Because the ADsorption chiller uses such a simple process, the downtime is minimal
and maintenance is also kept to an absolute minimum.
The are no hazardous substances within the chiller (i.e. lithium bromide or ammonia);
it uses silica gel (a natural substance) and water as a refrigerant. Therefore, the whole
process is highly environmentally friendly - right through to end of life disposal.
Weatherite
Proven expertise from a leading manufacturer
As part of the Kyoto protocol, the UK Government
Weatherite is leading the way in delivering energy
is committed to substantially reduce the nation’s
saving, environmentally friendly solutions using the
CO emissions over the next ten years. Many of
latest ADsorption chiller technology. As well as design
the Uk’s leading businesses have also outlined their
expertise, Weatherite has the ability to manufacture
commitment to cutting their energy consumption and
large-scale trigeneration plantrooms within a clean
carbon footprint. The world is following suit, as
and efficient manufacturing facility before they are
globally, organisations seek environmentally friendly
delivered and installed on site. This approach offers
solutions to their energy usage.
excellent cost saving benefits and ensures on site
2
disruption is kept to an absolute minimum.
ADsorption chiller technology can significantly
contribute towards a greener, energy efficient
environment.
ADsorption chiller technology
for energy efficient low carbon, sustainable solutions
The Weatherite Group
Weatherite Manufacturing Ltd is part of
the Weatherite Group, one of the UK’s leading
HVAC and Building Services organisations.
l Weatherite
Manufacturing Ltd
l Weatherite
Building Services Ltd
l Weatherite
Service and Maintenance Ltd
l Weatherite
Electrical Ltd
l Weatherite
Shopfronts and Shutters Ltd
www.weatheritegroup.com
Weatherite Manufacturing Limited
Weatherite House,
Credenda Road,
West Bromwich, West Midlands
B70 7JE England
T 0121 665 2266
F 0121 665 2277
E wmlsales@weatheriteroup.com