LMS100 … The world`s most efficient gas turbine

Flexible Seawater Desalination With
LMS100 Gas Turbine Using MED and
RO Combinations
Bulent Mehmetli / Richard Watkins
POWER-GEN Middle East, 13 October 2014
Imagination at work
LMS100 presentation contents
• GE’s Aeroderivative Gas Turbines and LMS100 genealogy
• Intercooler and secondary heat rejection options
• How Multi Effect Distillation is applied
• Customer benefits
2
GE Proprietary Information – Class I
Gas turbine product line
LM2500/TM2500
LM6000
18-34 MW @ 41% eff.
40-60 MW+ @ 42% eff.
• Legacy engine: 40+years
• 99% reliability; 1M OPHs
LMS100
100-116 MW @ 44.5%
• Intro ’91 … 1,000th unit ’10
• Fast response flexible CC …
140 MW @ 55+% efficiency
• New DLE 2.0 technology
• Global acceptance
Applications
• Emergency/temp power
• Verticals: Mining, oil and gas
• Marine: defense, fast ferry
• Cleaner heat and power
• LNG/Mechanical drive
• Dual fuel DLE
• Grid stability
• Power generation
• Mechanical drive
Wins
• Japan: Emergency response
• Ecuador/Oman: Temp power
• Brazil: FPSO/Oil & Gas
• China: Huadian CHP
• US: Black Hills, Colorado
• Brazil: Sugarcane ethanol
• Russia: ’14 Olympics in
Venue, Sochi
• US: 23 (+5) California units
3
GE Proprietary Information – Class I
LMS100* Genealogy
Building on proven technology
CF6-80C2
LM6000
•
•
•
•
•
• Introduced in ’85
• 3,800 units
• 173 million hours
Introduced in ’91
991 units
21 million hours
99% reliability
98% availability
LMS100
6FA
Design experience
and commonality
• Introduced in ’96
• 100 units
• 2.5 million hours
* LMS100 is a registered trademark of the General Electric Company (USA)
GE Proprietary Information – Class I
4
Proven technologies integrated in a 3-shaft
100+ MW gas turbine package
CF6-80C2
High Pressure
Compressor (HPC)
Aeroderivative
Single annular or
DLE combustor
Frame derivative
Power turbine shaft
Frame derivative
CF6-80E
MS6001FA
Low Pressure
Compressor (LPC)
High Pressure
Turbine (HPT)
Intercooler
System
Exhaust diffuser
Aeroderivative
Power Turbine (LPT)
Aeroderivative
Intermediate Pressure
Turbine (IPT)
5
GE Proprietary Information – Class I
Current package dimensions
73 feet
22.2 meters
113 feet
34.4 meters
6
GE Proprietary Information – Class I
Intercooler is the key to LMS100 performance
Enables high mass flow, pressure ratio, hot-day power
Power reduction over ambient T
Aero
Frame
Frame
VBV system
VBV
silencer
LMS100
392 deg F
(200 deg C)
Intercooler water flow:
56 psi
(3.9 bar)
22,711 lpm (6,000 gpm) for 2-pass
52C (125 F) to 28C (82 F)
95 deg F
(35 deg C)
8,706 lpm (2,300 gpm) for 6-pass
90C (195 F) to 28C (82 F)
Cooling water skid
GE Proprietary Information – Class I
55 psi
(3.8 bar)
Ideal T-S Diagram for an intercooled gas turbine cycle
(using LMS100 thermodynamic cycle station numbers)
41
Temperature
Qcomb
Low Pressure Compressor
3
25
High Pressure Compressor
23
Qic
Qexh
2
50
Note: Not
drawn to scale
Entropy
A fundamentally more efficient cycle is enabled by modern
control technology
GE Proprietary Information – Class I
LMS100 Energy Balance
at Baseload, hot & humid day
Exhaust ~ 90 MWth, ~ 39%
Generator losses
Generator power ~ 103 MWe, ~ 44%
Other losses
Fuel~ 234MWth, LHV
Interc ooler ~ 34 MWth, ~ 15%
Rough figures, details depend on ambient and model conditions !
9
CHP (CC + Intercooler Heat)
Gas Turbine:
~ 103 MWe
44 % eff.pts.
Steam Turbine:
~ 20.5 MWe
8.5% eff.pts.
Water 121 0C
300 t/hr
Heat Exchanger
Fin Fan Cooler
11.5% eff.pts.
35 0C
50 0C
Process:
~ 27 MWt
TOTAL CHP
124 MWe+27 MWt
64 %
GE Proprietary Information – Class I
Load Following / Deep Turndown Capability
11
GE Proprietary Information – Class I
Cengiz Energy
Samsun, Turkey
(2) LMS100s in CC (250 MW)
Cooling system uses seawater (Black Sea)
12
GE Proprietary Information – Class I
Multiple Effect Distillation
Bulb enclosure
Vessel
Distillate vapor
Heating fluid from intercooler
MED Advantages
• Low energy
consumption
Tubes or plates
• Low temp operation
Heating fluid back to intercooler
Distillate
Sea water
(Distillate)
• Simple
• Reliable
• Low opex
GE Proprietary Information – Class I
MED – RO Combination
• LMS100 can operate at either CC or SC mode
• If SC is chosen, all exhaust heat is available for MED (or MSF if feasible)
• If CC is chosen:
• CC efficiency>52% for full condensing configuration
• Use extraction to increase MED capacity
• Use MED for Intercooler heat
• Use all extra heat (from condenser, stack and IC) for RO heating
• Adjust MED/RO according to power and water needs
GE Proprietary Information – Class I
LMS100 in Desalination Configuration
… set the benchmark for defining operational flexibility while
sustaining medium size power and water needs
1. Fast starts … zero to 100% in 10 minutes
2. High efficiency ... +44% in SC
3. Fast response … 50 MW per minute ramp-up
4. Power for frequency support … reserved power, under frequency support
5. High part load efficiency ... for flexible operation
6. Multiple daily starts … no maintenance penalties
7. Cycle type … ability to run SC or CC
8. Zero water capable with DLE
9. High availability and reliability … longer maintenance intervals
15
GE Proprietary Information – Class I