Patent ID: 6499302
Filing Date: 2002-12-31
Classification: F01K,F02C,Y02E

Abstract:
A combined cycle power plant system, comprising:a compressor; a combustor receiving air provided by the compressor; a gas turbine for expanding gas provided by the compressor; a heat recovery steam generator for receiving exhaust gases from the gas turbine, said heat recovery steam generator comprising a low pressure section; a high pressure section for receiving exhaust gases from the gas turbine and located upstream of said low pressure section, each said low pressure section and high pressure section having an evaporator section; an intermediate pressure section located between said high pressure and said low pressure sections, said intermediate pressure section comprising an economizer, first and second evaporators, and a water heater disposed between said first and second evaporators; and a fuel gas heater for receiving heated water from said water heater.