• Title/Summary/Keyword: Humid Gas Turbine System

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Study on Performance and Optimal Operating Conditions of Regenerative Steam-Injection Gas Turbine Systems (증기분사 재생 가스터빈 시스템의 성능 및 최적 운전조건에 관한 연구)

  • Kim, Kyoung-Hoon;Kim, Dong-Joo;Park, Sang-Hee;Oh, Man-Soo;Kim, Dong-Myoung
    • Journal of the Korean Society of Propulsion Engineers
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    • v.14 no.1
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    • pp.29-39
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    • 2010
  • The system performance of the regenerative gas-turbine cycle with the steam injection into the combustor has been studied through the thermodynamic cyclic analysis. The effects of the pressure ratio, the steam injection ratio, the ambient temperature, and the turbine inlet temperature are investigated on the thermal efficiency, the fuel consumption, and the specific power as well as the operating conditions for the maximum thermal efficiency of the system. The results of the present analysis find that the use of steam injection in the regenerative gas-turbine system can greatly enhance the thermal efficiency and the specific power of the system.

Exergy Analysis of Regenerative Steam-Injection Gas Turbine Systems (증기분사 재생 가스터빈 시스템의 엑서지 해석)

  • Kim, Kyoung-Hoon;Jung, Young-Guan;Han, Chul-Ho
    • Journal of the Korean Society of Propulsion Engineers
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    • v.13 no.4
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    • pp.45-54
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    • 2009
  • An exergy analysis is carried out for the regenerative steam-injection gas turbine systems which has a potential of enhanced thermal efficiency and specific power. Using the analysis model in the view of the second law of thermodynamics, the effects of pressure ratio, steam injection ratio, ambient temperature and turbine inlet temperature are investigated on the performance of the system such as exergetic efficiency, heat recovery ratio of heat exchangers, exergy destruction, loss ratios, and on the optimal conditions for maximum exergy efficiency. The results of computation show that the regenerative steam-injection gas turbine system can make a notable enhancement of exergy efficiency and reduce irreversibilities of the system.