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

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

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.

本文言語English
ホスト出版物のタイトル17th World Hydrogen Energy Conference 2008, WHEC 2008
ページ602-605
ページ数4
出版ステータスPublished - 2008
外部発表はい
イベント17th World Hydrogen Energy Conference 2008, WHEC 2008 - Brisbane, QLD, Australia
継続期間: 2008 6月 152008 6月 19

出版物シリーズ

名前17th World Hydrogen Energy Conference 2008, WHEC 2008
1

Other

Other17th World Hydrogen Energy Conference 2008, WHEC 2008
国/地域Australia
CityBrisbane, QLD
Period08/6/1508/6/19

ASJC Scopus subject areas

  • 林業
  • 植物科学

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