Numerical analysis of heat transfer and stresses in a packed bed of hydrogen storage alloys with expansion

Toshiyuki Hirosawa, Yutaka Sangu, Kenta Ueoka, Satoshi Kikuchi, Yohsuke Matsushita, Hideyuki Aoki, Takatoshi Miura, Yoshiaki Kawakami

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In this study, heat transfer and stresses in tanks and packed beds of hydrogen storage alloys with expansion were numerically analyzed by the finite element method to investigate the effect of dimension (height and radius) on stresses with hydrogen absorbing fraction in the cylindrical packed beds and tanks. First, temperature and hydrogen absorbing fraction in the packed beds were calculated respectively. Then hydrogen absorbing fraction distributions were used to calculate the stress in the tank and the packed bed, assuming the alloy's volume expansion ratio is linear to hydrogen absorbing fraction and is isotropic for each axis. As a result, it is shown that hydrogen absorption begins at the wall side, where the heat can be removed efficiently by coolants. The maximum wall stress of all tanks increases with a raise in hydrogen absorbing fraction in the packed beds. The dimension of all the packed beds and all the hydrogen absorbing fractions significantly influences on the maximum wall stress.

Original languageEnglish
Title of host publication17th World Hydrogen Energy Conference 2008, WHEC 2008
Pages602-605
Number of pages4
Publication statusPublished - 2008
Externally publishedYes
Event17th World Hydrogen Energy Conference 2008, WHEC 2008 - Brisbane, QLD, Australia
Duration: 2008 Jun 152008 Jun 19

Publication series

Name17th World Hydrogen Energy Conference 2008, WHEC 2008
Volume1

Other

Other17th World Hydrogen Energy Conference 2008, WHEC 2008
Country/TerritoryAustralia
CityBrisbane, QLD
Period08/6/1508/6/19

Keywords

  • Expansion
  • Hydrogen storage alloys
  • Stress

ASJC Scopus subject areas

  • Forestry
  • Plant Science

Fingerprint

Dive into the research topics of 'Numerical analysis of heat transfer and stresses in a packed bed of hydrogen storage alloys with expansion'. Together they form a unique fingerprint.

Cite this