Closed loop air cooling system for combustion turbines

Details Closed loop air cooling system for combustion turbines Closed loop air cooling system for combustion turbines

1996-05-17

1998-07-21

Freay, Charles G.

Power plants

Combustion products used as motive fluid

60 3975, 60736, 60760, 415115, F02G 300, F02C 500

Patent

active

057820767

ABSTRACT:
Convective cooling of turbine hot parts using a closed loop system is disclosed. Preferably, the present invention is applied to cooling the hot parts of combustion turbine power plants, and the cooling provided permits an increase in the inlet temperature and the concomitant benefits of increased efficiency and output. In preferred embodiments, methods and apparatus are disclosed wherein air is removed from the combustion turbine compressor and delivered to passages internal to one or more of a combustor and turbine hot parts. The air cools the combustor and turbine hot parts via convection and heat is transferred through the surfaces of the combustor and turbine hot parts.

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patent: 5581996 (1996-12-01), Koch et al.
patent: 5611197 (1997-03-01), Bunker

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