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Thermal Flow Analysis of Operating Parameters in Autothermal Reformer

자열개질기의 운용조건에 따른 열유동 수치해석

  • 박승환 (한양대학교 기계공학과) ;
  • 김진욱 (한양대학교 기계공학과) ;
  • 박달영 (한국가스공사 연구개발원) ;
  • 김재동 (한국가스공사 연구개발원) ;
  • 이도형 (한양대학교 기계공학과)
  • Received : 2011.07.07
  • Accepted : 2011.10.31
  • Published : 2011.12.01

Abstract

The study is to analyze the chemical and heat-flow reactions in the hydrogen generation unit(autothermal reformer), using computational numerical tools. Autothermal reformer(ATR) is involved in complex chemical reaction, mass and heat transfer due to exothermic and endothermic reactions. Therefore it is necessary to reveal the effects of various operation parameters and geometries on the ATR performance by using numerical analysis. Numerical analysis needs to dominant chemical reactions that includes Full Combustion(FC) reaction, Steam Reforming(SR) reaction, Water-Gas Shift(WGS) reaction and Direct Steam Reforming(DSR) reaction. The objective of the study is to improve theoretically the reformer design capability for the goal of high hydrogen production in the autothermal reformer using methane. Hydrogen production reached maximum in a certain value of Oxygen to Carbon Ratio(OCR) or Steam to Carbon Ratio(SCR). When the longitudinal distance to dimeter ratio(L/D) is increased, hydrogen production increases.

Acknowledgement

Grant : 고온 PEMFC용 연료처리장치 개발

Supported by : 한국에너지기술평가원

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