D132 伝熱フィンによる水素吸蔵合金粒子層の伝熱促進(多孔質中の熱・物質輸送現象I)

概要

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One of the improvement techniques of effective thermal conductivity for metal hydride particles bed is a insertion of radial fins into the bed, by which the heat transfer characteristics and reaction kinetics can be enhanced. Rectangular fins are inserted from 3 to 6 into the metal hydride particles bed and hydrogen absorption amount of metal hydride has been measured by constant volume Sievert's method. Reaction kinetics is defined as a ratio of 80% of maximum hydrogen absorption over the absorption time when the amount of hydrogen absorption reaches its corresponding value. As the results, radial fins are useful for the enhancement of the heat transfer and reaction kinetics of metal hydride particles bed. Reaction kinetics of reactor with 6 fins can become two times faster than that without the fin.
2009-11-06