Heat Transfer Analysis for a Tubular Methane-Steam Reformer with a Porous Radiative Converter.

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  • ふく射変換体を装備した管式メタン・水蒸気改質器の伝熱解析
  • フクシャ ヘンカンタイ オ ソウビシタ カンシキ メタン スイジョウキ カイシ

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Abstract

A numerical analysis has been performed extensively on a two-dimensional tubular methane-steam reformer with a porous radiative converter by means of a proposed quasi-multidimensional analytical model, in which a two-dimensional energy equation is integrated and averaged along the direction perpendicular to the flow, and the divergence of radiation for a participating gas is also averaged after the rigorous three-dimensional treatment relating to the radiative transfer. The results disclose that the proposed method is beneficial for heat transfer problems including gas radiation compared with a uniform gas temperature method or a two-dimensional analytical method; the numerical results show a reasonable agreement with experimental results and exhibit much the same precision as those of a two-dimensional analytical model, and further, the CPU time for the proposed method is about half that for the two-dimensional method.

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