Journal of Hydrogen and New Energy (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Optimization of Operating Conditions for a 10 kW SOFC System

10kW급 건물용 고체산화물연료전지(SOFC) 시스템 모델을 이용한 운전조건 최적화 연구

  • 이율호 (홍익대학교 기계공학과 동력 및 에너지 기술 연구실) ;
  • 양찬욱 (홍익대학교 기계공학과 동력 및 에너지 기술 연구실) ;
  • 양충모 (포스코 에너지 연료전지연구소) ;
  • 박상현 (포스코 에너지 연료전지연구소) ;
  • 박성진 (홍익대학교 기계공학과 동력 및 에너지 기술 연구실)
  • Received : 2015.11.26
  • Accepted : 2016.02.28
  • Published : 2016.02.29
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Abstract

In this study, a solid oxide fuel cell (SOFC) system model including balance of plant (BOP) for building electric power generation is developed to study the effect of operating conditions on the system efficiency and power output. SOFC system modeled in this study consists of three heat-exchangers, an external reformer, burner, and two blowers. A detailed computational cell model including internal reforming reaction is developed for a planer SOFC stack which is operated at intermediate temperature (IT). The BOP models including an external reformer, heat-exchangers, a burner, blowers, pipes are developed to predict the gas temperature, pressure drops and flow rate at every component in the system. The SOFC stack model and BOP models are integrate to estimate the effect of operating parameters on the performance of the system. In this study, the design of experiment (DOE) is used to compare the effects of fuel flow rate, air flow rate, air temperature, current density, and recycle ratio of anode off gas on the system efficiency and power output.

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References

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