Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Part-load Performance Characteristics of a Solid Oxide Fuel Cell/Gas Turbine Hybrid Power System Operating with Various Load-following Operation Modes

부하추종 운전방법에 따른 고체산화물 연료전지/가스터빈 하이브리드 동력 시스템의 부분부하 성능특성

  • 김재훈 (서울대학교 대학원 기계항공공학부) ;
  • 양진식 (서울대학교 대학원 기계항공공학부) ;
  • 노승탁 (서울대학교 기계항공공학부) ;
  • 손정락 (서울대학교 기계항공공학부)
  • Published : 2006.03.01
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Abstract

The purpose of this study is to compare the part-load performance of a SOFC/GT hybrid power system with three different kinds of load-following operation modes. The primary mode for the part load operation of a hybrid power system is the reduction of supplied fuel (e.g., fuel control mode) to the hybrid system. The other two options, i.e., variable speed and VIGV controls, are related to the reduction of supplied air simultaneously with the reduction of supplied fuel to the system. With the performance analysis of a SOFC/GT hybrid power system, it is concluded that the variable speed con佐ol mode Provides the best performance for the part-load operations. It is also found that the VIGV control mode, with its better performance behavior than the fuel control mode, can be used as an important option for the part-load operation especially in case that the variable speed control mode can not be adopted.

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References

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