The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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Effect of Gas Bypass at Turbine Inlet on Design of a Pressurized Solid Oxide Fuel Cell / Gas Turbine Hybrid System

가압형 고체산화물 연료전지 / 가스터빈 하이브리드 시스템 설계에서 터빈입구 바이패스의 효과

  • 박성구 (인하대학교 기계공학과 대학원) ;
  • 손정락 (서울대학교 기계항공공학과) ;
  • 김동섭 (인하대학교 기계공학부)
  • Published : 2008.02.01
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Abstract

Hybrid power generation systems combining a solid oxide fuel cell and a gas turbine is promising due to their high efficiency. In the pressurized hybrid system, the operating condition of the gas turbine may play a critical role in designing the hybrid system. In particular, prevention of surge of the compressor can be a critical issue. The existence of fuel cell between the compressor and the turbine may cause an additional pressure loss and thus compressor operating points tend to approach the surge if the original turbine inlet temperature is pursued. In this study, bypassing some of the turbine inlet gas directly to the turbine exit side is simulated. Its effects on suppressing the surge problem and change in performance characteristics are discussed.

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References

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