Steam-injected gas turbines
- Gas Research Inst., Chicago, IL (United States)
A steam-injected system represents a combined Brayton and Clausius-Rankine cycle in which exhaust-generated steam is introduced ahead of the turbine section of the gas turbine. Conceptually, it is equivalent to a combined cycle except that the steam is expanded together with the air in the same turbine instead of in a separate steam turbine. Combined cycles have demonstrated the highest power generation efficiencies and the lowest cost in sizes above 50 MW. With decreasing size, the steam turbine represents an increasing portion of the overall cost. Therefore, in smaller sizes steam-injected gas turbines, which do not need a steam turbine, become attractive. Steam injecting the LM1600 gas turbine increases power output, improves efficiency, and can also reduce NO[sub x] emissions. It also increases the operational flexibility of a cogeneration installation. It is particularly advantageous for an installation having a varying demand for process steam where the steam requirements often fall below the output of an unfired heat recovery steam generator. The current LM1600 STIG configuration is scheduled for early 1994 delivery.
- OSTI ID:
- 7073857
- Journal Information:
- Cogeneration and Competitive Power Journal; (United States), Journal Name: Cogeneration and Competitive Power Journal; (United States) Vol. 9:2; ISSN CCPJE8; ISSN 1066-8683
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
320304* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Waste Heat Recovery & Utilization
AIR POLLUTION ABATEMENT
BRAYTON CYCLE POWER SYSTEMS
CHALCOGENIDES
COMBINED-CYCLE POWER PLANTS
DESIGN
DUAL-PURPOSE POWER PLANTS
EFFICIENCY
ENERGY SYSTEMS
EQUIPMENT
FLUID INJECTION
GAS TURBINES
MACHINERY
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
POWER PLANTS
POWER SYSTEMS
STEAM INJECTION
THERMAL POWER PLANTS
TURBINES
TURBOMACHINERY