Power plants – Combustion products used as motive fluid
Patent
1991-05-13
1992-03-17
Casaregola, Louis J.
Power plants
Combustion products used as motive fluid
60 3959, 60736, F02C 718
Patent
active
050956930
ABSTRACT:
A high efficiency/low nitric oxide emission gas turbine engine includes an interchanger for cooling a compressed air side stream which is used for cooling the turbine section. The heated fuel is then mixed with steam for injection into a combustor, thereby reducing nitric oxide emissions, while preventing condensation during mixing. Where water is used for injection instead of steam, both the fuel and water are preheated by interchange with the hot compressed gas stream. Preheating the fuel and/or water prevents steam condensate or water from entering the combustor, and does so using heat available within the gas turbine cycle thereby increasing overall turbine efficiency. In addition, utilizing a fuel/air interchanger reduces the size of the heat exchanger and the need for other auxiliary equipment, reducing costs while increasing turbine efficiency.
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Casaregola Louis J.
Sapone William J.
United Technologies Corporation
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