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Study to determine the cost-effectiveness of using steam-injected gas turbines with coal gasification equipment. Final report. [Intercooling]

Technical Report ·
OSTI ID:5964551
; ;
Performance data, cost estimates and bus-bar power costs were developed for integrated gasification-gas turbine power plants. The British Gas/Lurgi slagging, fixed-bed gasifier was employed to produce clean fuel gas from coal. The clean fuel gas was fired in steam injected gas turbines. The gas turbines were based upon expected performance of GE LM-5000 gas turbines modified to accommodate mass injection of steam produced through turbine exhaust heat recovery. Gas turbine configurations with (ISTIG) and without (STIG) intercooled air compressors were examined and compared to a conventional combined cycle approach. Performance for the intercooled case was slightly poorer than the combined cycle case, while the non-intercooled case was considerably worse. Capital costs of both the STIG and ISTIG plants were estimated higher than the combined cycle. Costs of electricity from the STIG and ISTIG plants were also estimated to be higher than from the combined cycle plant, although the ISTIG and combined cycle costs were very close. 4 figs., 13 tabs.
Research Organization:
Parsons (Ralph M.) Co., Pasadena, CA (USA)
OSTI ID:
5964551
Report Number(s):
EPRI-AP-4507; ON: TI86920252
Country of Publication:
United States
Language:
English

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Related Subjects

20 FOSSIL-FUELED POWER PLANTS
200100* -- Fossil-Fueled Power Plants-- Power Plants & Power Generation
BGC-LURGI SLAGGING PROCESS
COAL GASIFICATION
COMBINED-CYCLE POWER PLANTS
COMPARATIVE EVALUATIONS
COMPRESSORS
COOLING
DATA
DIAGRAMS
ENERGY RECOVERY
EXHAUST GASES
EXPERIMENTAL DATA
FLOWSHEETS
FLUIDS
GAS COMPRESSORS
GAS TURBINES
GASEOUS WASTES
GASES
GASIFICATION
HEAT RECOVERY
INFORMATION
INJECTION
INTAKE
MACHINERY
NUMERICAL DATA
PERFORMANCE
POWER PLANTS
RECOVERY
STEAM
THERMAL POWER PLANTS
THERMOCHEMICAL PROCESSES
TURBINES
TURBOMACHINERY
WASTES