Energy recovery and steam supply for power augmentation in a combined cycle power generation system
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United States of America Patent
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Sep 24, 2013
Grant Date -
Nov 3, 2011
app pub date -
Apr 30, 2010
filing date -
Apr 30, 2010
priority date (Note) -
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Abstract
A power generation system (11) and method of operating such a system (11) including a steam turbine (14). In one embodiment a HRSG (20) includes an evaporator (127) coupled to receive condensate from the steam turbine (14), and a superheater (132) coupled to receive output from the evaporator (127). The HRSG (20) generates steam with thermal energy received from a combustion turbine (28). A flash tank (9) receives water heated in the HRSG (20), outputs a first portion of the water as steam, and outputs a second portion of the water as liquid. A flow line (134) passes steam (51) from the flash tank (9) to a combustion chamber (26) in the combustion turbine (28) to provide power augmentation.
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