Calculation of the Effective Thermal Conductivity of a Metal Hydride Packed Bed

• MATSUSHITA Masahiro

  Institute of Ocean Energy, Saga University

• MONDE Masanori

  佐賀大学 海洋エネルギー研究センター

• MITSUTAKE Yuichi

  佐賀大学大学院 工学系研究科 機械システム専攻

Bibliographic Information

Other Title

• 水素吸蔵合金の有効熱伝導率の計算

Abstract

The effective thermal conductivity of a metal hydride packed bed was calculated in consideration of the influence of expansion and contraction. The area-contact model was modified so that the porosity and the deformed factor change by expansion and contraction. The porosity was calculated using the experimental formula developed by direct observation. The deformed factor was calculated using assumption of a simple geometrical deformation caused by difference between a particle expansion and a packed bed expansion. The calculation results are consistent with the reported experimental value. The calculation results indicate that the effective thermal conductivity is greatly influenced by the porosity and expansion ratio rather than other parameters. Therefore, this calculation method incorporating the influence of change of packed bed states, which are the porosity and the expansion ratio etc., will be helpful to investigate of heat transfer enhancement on a metal hydride reactor.

Journal

• TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B

  TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B 79 (804), 1664-1674, 2013

  The Japan Society of Mechanical Engineers

Keywords

• Effective Thermal Conductivity
• Energy Storage
• Heat Conductivity
• Hydrogen Energy
• Metal Hydride
• Packed Bed

Details

• CRID: 1390282681238565120
• NII Article ID: 130003374890
• DOI: 10.1299/kikaib.79.1664
• ISSN: 18848346
• ISSN: 03875016
• Web Site: https://www.jstage.jst.go.jp/article/kikaib/79/804/79_1664/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed