Numerical analysis of hydrogen absorption in a P/M metal bed


Bilgili M. , Ataer O.

POWDER TECHNOLOGY, cilt.160, sa.2, ss.141-148, 2005 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 160 Konu: 2
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1016/j.powtec.2005.08.018
  • Dergi Adı: POWDER TECHNOLOGY
  • Sayfa Sayıları: ss.141-148

Özet

In a porous metal bed, two-dimensional heat and mass transfer are analyzed for hydrogen absorption in the cylindrical coordinates. For high cooling rates an annular geometry is selected for the porous metal bed, and the bed is cooled by a fluid on both the internal and the external surfaces. The absorption process is analyzed numerically for the porous LaNi5 P/M metal bed. Variations of the metal hydride temperature and hydrogen/metal atomic ratio are calculated in the radial and axial directions using a computational fluid dynamics (CFD) program. It is observed that the hydride formation takes places near the cold boundaries. The results are compared with the numerical results given in the literature for different geometries. (c) 2005 Elsevier B.V. All rights reserved.