Combined-cycle power plant operate by integrating a combustion turbine generator (CTG) and heat recovery steam generator (HRSG) with a steam turbine generator (STG). On some combined-cycle plants, the isolation of the CTG/HRSG from the STG is provided by the application of an HRSG bypass damper and bypass stack. In this case steam generation in the HRSG can be controlled/eliminated by venting the CTG exhaust gas through the bypass stack. This scheme facilitates simple-cycle operation and avoids condensate loss, but it is capital intensive and presents the problem of noise pollution.
Proper steam bypass system design avoids steam turbine overheating
Power Engineering. The Engineering Magazine of Power Generation ; 107 , 6 ; 44-52
2003
5 Seiten
Aufsatz (Zeitschrift)
Englisch
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