Water augmented regeneration (WAR) turbine system and cycle

Details Water augmented regeneration (WAR) turbine system and cycle Water augmented regeneration (WAR) turbine system and cycle

2007-04-10

2007-04-10

Rodriguez, William H. (Department: 3746)

Power plants

Combustion products used as motive fluid

Process

C060S039550, C060S039590

Reexamination Certificate

active

10928523

ABSTRACT:
A gas turbine system (100) includes a compressor (110) for receiving air and producing compressor discharge air, a combustor (120) for combusting an oxygen comprising gas flow including the discharge air and a fuel into a hot gas flow, and a turbine expander (130) generating output power from the hot gas flow and providing a hot exhaust gas flow. An extractor (135) is provided for splitting the discharge air into a direct flow portion (121) which directly reaches the combustor (120) and an indirect flow portion (122). A mixing device (140) receives the indirect flow portion (122) and mixes it with a water flow (145), either in the form of water or steam, to produce a water enhanced indirect flow portion (150). A recuperative heat exchanger (155) heats the water enhanced indirect flow portion (150) using heat from at least a portion of the hot exhaust gas flow. The heated water enhanced indirect flow portion (158) is then reintroduced into the oxygen comprising gas flow.

REFERENCES:
patent: 6141955 (2000-11-01), Akiyama et al.
patent: 6247302 (2001-06-01), Tsukamoto et al.
patent: 6397578 (2002-06-01), Tsukamoto et al.
patent: 6578354 (2003-06-01), Hatamiya et al.
patent: 6644013 (2003-11-01), Hatamiya et al.
patent: 6877320 (2005-04-01), Linder

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