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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

YANG, CHANUK;LEE, YULHO;PARK, SANGHYUN;YANG, CHOONGMO;PARK, SUNGJIN
양찬욱;이율호;박상현;양충모;박성진

  • Received : 2016.01.06
  • Accepted : 2016.02.28
  • Published : 2016.02.29

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

Steam Reformer;Solid Oxide Fuel Cell System;Heat Exchange Steam Reformer;Computational Fluid Dynamics;Design Optimization

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Acknowledgement

Grant : 10kW급 건물용 SOFC(고체산화물 연료전지) 시스템 실증

Supported by : 한국에너지기술평가원(KETEP)