Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Study on the Design Parameters of a Heat Exchange Steam Reformer (HESR) using CFD

전산유체해석을 이용한 열교환형 수증기 개질기의 디자인 파라미터 연구

  • 양찬욱 (홍익대학교 기계공학과 동력 및 에너지 기술 연구실) ;
  • 이율호 (홍익대학교 기계공학과 동력 및 에너지 기술 연구실) ;
  • 박상현 (포스코 에너지 연료전지 연구소) ;
  • 양충모 (포스코 에너지 연료전지 연구소) ;
  • 박성진 (홍익대학교 기계공학과 동력 및 에너지 기술 연구실)
  • Received : 2016.01.06
  • Accepted : 2016.02.28
  • Published : 2016.02.29
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Abstract

In this study, CFD model for a Heat Exchange Steam Reformer (HESR) used for a 10kW SOFC system is developed for the design optimization of the HESR. The model is used to explore the effect of design parameters on the performance of the HESR. In the HESR, heat is delivered from the hot gas channel to the fuel channel to supply the heat required for the fuel reforming. In the fuel channel where the fuel is reformed, thermo-fluid dynamics, heat transfer, and chemical reaction are considered to predict the performance of the reformer. The model is validated with experimental data within 2~3% error. The validated model is used for the parametric study of the HESR design. Channel length, channel diameter, and flow direction are selected as the design parameters. The effects of the HESR design parameters on the outlet temperature, outlet H2 mole fraction, and pressure drop across the reformer are presented using the model.

Keywords

References

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