Selecting gas turbines for power cogeneration
- Larsen and Toubro Ltd., Bombay (India)
To optimize the match between gas turbine and cogeneration and combined cycle power processes, one must go beyond typical mechanical requirements. Although several articles discuss mechanical design requirements for gas turbine trains, they focus on critical review of compressor performance curves, Campbell diagrams of the first-stage compressor blades and turbine stages, turbine flow-path temperature profiles and response to combustor flameout. Based on experience and literature, the following features should be considered when selecting gas turbines for cogen applications. Some are requirements while the balance are secondary criteria that affect gas turbine selection. The features are: firing temperature; exhaust temperature; exhaust gas mass flow vis-a-vis stream production; specific output; exhaust gas composition; oxygen content; steam injection and steam purity; emission level; single vs. two-shaft machine; gas turbine vs. overall efficiency of the combined cycle power plant; and machine reliability. The features are all briefly discussed.
- OSTI ID:
- 6496550
- Journal Information:
- Hydrocarbon Processing; (United States), Journal Name: Hydrocarbon Processing; (United States) Vol. 72:3; ISSN HYPRAX; ISSN 0018-8190
- 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
CHEMICAL COMPOSITION
COGENERATION
COMBINED CYCLES
DESIGN
DEUS
DUAL-PURPOSE POWER PLANTS
EFFICIENCY
ELEMENTS
EMISSION
ENERGY EFFICIENCY
EQUIPMENT
EXHAUST GASES
FLUIDS
GAS TURBINES
GASEOUS WASTES
GASES
HEAT RECOVERY EQUIPMENT
MACHINERY
NONMETALS
OXYGEN
PLANNING
POWER GENERATION
POWER PLANTS
RECOMMENDATIONS
RELIABILITY
STEAM
STEAM GENERATION
TEMPERATURE DEPENDENCE
THERMODYNAMIC CYCLES
TURBINES
TURBOMACHINERY
WASTES