Patent ID: 7197876

Claim:
A bottoming cycle system comprising: a heat recovery vapor generator subsystem HRVG including: a preheater section for preheating a fully condensed, high pressure working fluid stream with heat derived from a cool heat source stream to form a preheated, high pressure working fluid stream and a spent heat source stream; an intercooler section for vaporizing the preheated, high pressure working fluid stream with heat derived from a cooled heat source stream and a low pressure working fluid stream to form a vaporized high pressure working fluid stream, a cooled low pressure working fluid stream and the cool heat source stream; and a superheater section for superheating the vaporized, high pressure working fluid stream with heat derived from a hot heat source stream to form a superheated, high pressure working fluid stream and the cooled heat source stream; where the fully condensed, high pressure working fluid stream is preheated, vaporized and superheated to form the superheated, high pressure working fluid stream within the HRVG; a multi-stage energy conversion or turbine subsystem T including: a high pressure turbine or turbine stage HPT for converting a portion of thermal energy in the superheated working fluid stream into a first portion of mechanical and/or electrical power to form the low pressure, working fluid stream; and a low pressure turbine or turbine stage LPT for converting a portion of thermal energy in the cooled low pressure working fluid stream into a second portion of mechanical and/or electrical power to form a spent working fluid stream; and a condensation thermal compression subsystem CTCSS for condensing the spent working fluid stream to from the fully condensed, high pressure working fluid stream.