Closed loop air cooling system for combustion turbines

Patent · Thu Jan 01 00:00:00 EST 1998

OSTI ID:871714

Huber, David John ^[1]; Briesch, Michael Scot ^[2]

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1. North Canton, OH
2. Orlando, FL

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.

• Research Organization: Westinghouse Electric Corp., Pittsburgh, PA (United States)
• DOE Contract Number: AC21-93MC30247
• Assignee: Westinghouse Electric Corporation (Pittsburgh, PA)
• Patent Number(s): US 5782076
• OSTI ID: 871714
• Country of Publication: United States
• Language: English

Related Subjects

closed
loop
air
cooling
combustion
turbines
convective
turbine
hot
disclosed
preferably
applied
power
plants
provided
permits
increase
inlet
temperature
concomitant
benefits
increased
efficiency
output
preferred
embodiments
methods
apparatus
removed
compressor
delivered
passages
internal
combustor
cools
via
convection
heat
transferred
surfaces
inlet temperature
turbine hot
power plants
combustion turbine
closed loop
preferred embodiments
preferred embodiment
power plant
air cooling
turbine power
convective cooling
increased efficiency
/60/415/