Heat and mass transfer in a concentric-annular-tube bed packed with ZrV1.9Fe0.1 particles

S. Fukada, S. Morimitsu, N. Shimoozaki

研究成果: Contribution to journalArticle査読

5 被引用数 (Scopus)


Pressure-composition isotherms of the ZrV1.9Fe 0.1-hydrogen system were determined by a constant volume method and were correlated to an empirical van't Hoff equation. The enthalpy change of hydrogen absorption was correlated to a function of the hydrogen-to-alloy atomic molar ratio. The entropy change was independent of it. Heat and mass transfer process in a concentric-annular-tube bed packed with the ZrV 1.9Fe0.1 particles was studied experimentally and numerically as a basic study of hydrogen storage at elevated temperature. A one-dimensional concentric-annular-tube bed was charged with hydrogen. The experimental profiles of hydrogen partial pressure and temperature were compared with numerical simulation calculated by the pressure-composition isotherm, a hydrogenating rate equation and two balance equations of hydrogen and heat. Another simplified analysis using three dimensionless lump parameters succeeded in estimating temperature profiles in the hydrogen-absorbing-alloy bed more easily. The simulation was able to make it better to understand contributions of experimental parameters such as the flow rate, surrounding temperature and other physical properties.

ジャーナルJournal of Alloys and Compounds
出版ステータス出版済み - 7 28 2004

All Science Journal Classification (ASJC) codes

  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学


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