The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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Changes in Performance and Operating Condition of a Gas Turbine Combined Heat and Power System by Steam Injection - A Focus on Compressor Operation

증기분사에 의한 가스터빈 열병합발전 시스템의 성능과 운전조건 변화 - 압축기 작동 변화를 중심으로

  • Received : 2011.08.05
  • Accepted : 2011.10.04
  • Published : 2011.12.01
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Abstract

This study simulated the effect of steam injection on the performance and operation of a gas turbine combined heat and power (CHP) system. A commercial simple cycle gas turbine was analyzed. A full off-design analysis was carried out to investigate the variations in not only engine performance but also the operating characteristics of the compressor caused by steam injection. Variation in engine performance and operation characteristics according to various operation modes were examined. First, the impact of full steam injection was investigated. Then, operations aiming to guarantee a minimum compressor surge margin, such as under-firing and partial steam injection, were investigated. The former and latter were turned out to be relatively superior to each other in terms of power and efficiency, respectively.

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References

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