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

The Korean Society of Mechanical Engineers (대한기계학회)
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Performance Prediction and Economic Assessment of Atmospheric Pressure MCFC/Gas Turbine Hybrid System with Indirect Turbine Firing

터빈 간접가열식 상압형 MCFC/가스터빈 복합시스템의 성능예측과 경제성 평가

  • 최주환 (인하대학교 기계공학부) ;
  • 김동섭 (인하대학교 기계공학부) ;
  • 곽부호 (포스코에너지 기술전략실 연료전지연구소)
  • Received : 2013.05.23
  • Accepted : 2013.11.13
  • Published : 2014.01.01
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Abstract

The performance of fuel cell/gas turbine hybrid systems is highly affected by system configuration. In this study, the performance of a hybrid system combining a molten carbonate fuel cell (MCFC) and an indirectly fired gas turbine was predicted. Firstly, general performance trends of the hybrid system depending on major design parameters were examined. Then, the most feasible design options with the least impact on the MCFC stack design conditions were drawn. The economic advantage of the hybrid system over the basic MCFC only system was evaluated.

연료전지와 가스터빈의 하이브리드 시스템의 성능은 시스템 구성방법에 따라 영향을 많이 받는다. 본 연구에서는 용융탄산염연료전지(MCFC)와 가스터빈을 터빈간접가열방식으로 모사하여 성능을 예측하였다. 하이브리드 시스템의 설계파라미터의 변화에 따른 성능의 경향을 나타내었다. 그리고 MCFC 단독 운전시의 설계조건에 미치는 영향을 최소화하는 가장 합리적이고 실현가능한 하이브리드 시스템의 설계 조건을 구현하였다. 경제성 평가를 통해 MCFC단독 시스템 대비 하이브리드 시스템의 경제적 이점을 평가하였다.

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