Journal of the Korean Society of Combustion (한국연소학회지)

The Korean Society of Combustion (한국연소학회)
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The Effect of Operating Conditions on the Heat-flow Characteristics and Reforming Efficiency of Steam Reformer with Combustor

연소기가 장착된 수증기 개질기에서 운전조건이 열유동 특성 및 개질효율에 미치는 영향

  • 김지석 (고려대학교 대학원 기계공학과) ;
  • 이재성 (고려대학교 대학원 기계공학과) ;
  • 김호영 (고려대학교 기계공학부)
  • Received : 2010.12.03
  • Accepted : 2010.02.15
  • Published : 2011.03.31
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Abstract

The heat-flow characteristics and reforming efficiency of steam reformer with combustor are numerically investigated at various operating conditions. SCR(Steam to Carbon Ratio) and GHSV(Gas Hourly Space Velocity) are adopted as important operating conditions. User-Defined-Function(UDF) was used to simultaneously calculate reforming and combustion reaction. Numerical results show that hot burned gas rise by a buoyant force and heat exchange between reforming reactors and cocurrent flow occurs in the combustion region. The results also indicate that an increase of SCR leads to decrease the mole fraction of hydrogen at the reactor outlet. As GHSV increases, conversion rate decreases.

Keywords

References

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