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Numerical Study on Geometries and Operating Parameters of a Steam Reformer for Hydrogen Production  

Byun, Kang-Soo (고려대학교 대학원 기계공학과)
Lee, Jae-Seong (고려대학교 대학원 기계공학과)
Kim, Ho-Young (고려대학교 기계공학부)
Publication Information
Journal of the Korean Society of Combustion / v.16, no.3, 2011 , pp. 1-11 More about this Journal
Abstract
The main objective of this paper is to investigate characteristic of steam reformer at various geometries and operating conditions. In this paper, the steam reforming is studied by a numerical method and three dimensional simulations were used for effective analytical study. User - Defined Function (UDF) was used to simultaneously calculate reforming and combustion reaction. And the numerical model is validated with experimental results at the same operating conditions. In order to understand the relationship between operating conditions such as gas hourly space velocity(GHSV), mass flow rate of combustor inlet, various numerical investigations are carries out for various geometries. Numerical results show that cylindrical geometry is more effective than rectangular geometry for heat transfer to reactors and reforming efficiency. As mass flow rate of combustor inlet increase, reaction occurs more faster and temperature increase with each geometry. On the other hand, reaction and hydrogen conversion decrease as mass flow rate of reactor decreases.
Keywords
Steam reformer; Combustor; Reforming efficiency;
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Times Cited By KSCI : 1  (Citation Analysis)
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