Intake air heating system of combined cycle plant

Details Intake air heating system of combined cycle plant Intake air heating system of combined cycle plant

2011-08-23

2011-08-23

Cuff, Michael (Department: 3741)

Power plants

Combustion products used as motive fluid

Multiple fluid-operated motors

C060S728000

Reexamination Certificate

active

08001760

ABSTRACT:
A gas turbine is driven by a combustion gas produced when BFG compressed by a gas compressor and air compressed by a compressor are burned in a combustor. Steam is generated from a waste heat boiler by utilization of heat of an exhaust gas from the gas turbine, and a steam turbine is driven by this steam. An electric generator generates electricity upon driving of the turbines. A condensing heat exchanger is disposed in an air intake duct, and part of steam from the waste heat boiler flows through the heat exchanger to heat intake air. The amount of steam that flows through the heat exchanger is adjusted by adjusting the degree of opening of a steam control valve by a control device. By so doing, the ignition performance of the gas turbine in a BFG-fired gas turbine combined cycle plant is enhanced even in an extremely cold district.

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Japanese Office Action dated Apr. 26, 2011, issued in corresponding Japanese Patent Application No. 2006-143476.

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