燃料電池改質器における板形改質管の伝熱挙動

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  • Heat Transfer in Plate-Type Reformer Tube for Fuel Cell Reformer.
  • ネンリョウ デンチ カイシツキ ニ オケル イタガタ カイシツカン ノ デンネ

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Heat transfer in a plate-type reformer tube has been clarified by both experimental data and one-dimensional analysis. Reaction heat was approximately 80% of gross heat absorption, and the overall heat transfer coefficient in the packed bed was 5 times as large as that of nonchemical reaction. The major reaction was performed at the upper portion of the tube along the plate fin heat exchanger. Heat flux distribution was focussed by the porous medium, but its contribution to the reaction was not so remarkable. The reaction heat went partially beyond absorbed heat, and gas temperature decreased slightly with sensible heat consumption. It was found that the process gas inlet temperature was the key parameter in reforming reaction enhancement.

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