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2012 | 14 | 3 | 71-76
Tytuł artykułu

Modeling of heat and mass transfer in LaNi5 matrix during hydrogen absorption-desorption cycle

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Packed bed reactors using metal hydride are attracting a lot of attention as potential hydrogen storage systems. Some operational and design variables are major constraints to obtain a proper infl ow/outfl ow of hydrogen into a metal hydride reactor. These variables include packed bed thermal conductivity, porosity, pressure and temperature distributions in the reactor during the absorption/desorption cycle. They also cause a mechanical stress induced by temperature gradient. In this paper, two dimensional models are implemented in COMSOL multiphysics to simulate the hydrogen fl ow, pressure and temperature distributions in the packed bed reactor during absorption/desorption cycle. Also, stresses in porous metal hydride induced by temperature variation in the heating/cooling cycle were evaluated. A possible effect of stress induced, porosity changes on diffusion and heating of hydrogen in both radial and axial direction in packed bed is discussed. The model consists of a system of partial differential equations (PDE) describing structural mechanics of stress, heat and mass transfer of hydrogen in the porous matrix of the packed bed reactor.
Wydawca

Rocznik
Tom
14
Numer
3
Strony
71-76
Opis fizyczny
Daty
wydano
2012-10-01
otrzymano
zaakceptowano
online
2012-10-31
Twórcy
  • Tshwane University of Technology, Department of Chemical & Metallurgical Engineering, Pretoria 0001, South Africa, lukmanao@tut.ac.za
  • Tshwane University of Technology, Department of Chemical & Metallurgical Engineering, Pretoria 0001, South Africa
Bibliografia
  • 1. Momirian, M. & Vesiroglu,T.N, Renewable Sustainable Energy (2002), Rev6, 141-179. Doi:10.1016/j. ijhydene.2011.01.008.6.[Crossref]
  • 2. Jemni, A. & Nasrallah, B.S. Study of 2- Dimensional Heat transfer and Mass transfer during absorption in a metal - Hydrogen Reactor.Int.j.Hydrogen Energy(1995),20(1), 43-52 .Doi:10.1016/0360-3199(93) E0007-8.[Crossref]
  • 3. Aldas, K., Mat, M.D. & Kaplan, Y. Three Dimensional mathematical model for absorption in a metal hydride bed. Int. J.Hydrogen Energy (2002), 27(10), 1049-1056.Doi:10.1016/j.ijhydene.2008.12.096.[Crossref]
  • 4. Mayer, U., Grol, M. & Supper, W. Journal of less common metals (1987), vol44, 131-235.
  • 5. Nakagawa, T., Inomata, A., Aoki, H. & Miura, T. Numerical analysis of heat and mass transfer characteristics in the metal hydride bed. Int. journal. Hydrogen Energy (2002).25(4), 339-350.Doi:-org/10.1016/so360- 3199 (99) 0036-1.
  • 6. Suda, S., Kobayashi, N., Morishita, E. & Takanmoto, N. Journal of less- common metals (1983), vol32, 89-325. Doi/abs/10.1111/j.1440.
  • 7. Marty, P., Fourmigue, J.F, De Rango, P., Fruchart, D. & Charbouner, J., Numerical simulation of heat and mass transfer during the absorption of hydrogen in a magnesium hydride. Energy conversion and management (2006), Vol 47, 3632-3643.
  • 8. www.comsol.com.
  • 9. Jenni, A., Contribution a letude des transfer de chaleur et de masse dans inreacteur metal - hydrogen(1997).
  • 10. Askri, F., ben Salam, M., Jenni, A. & ben Nasrallah, S., Optimization of hydrogen storage in metal hydride tanks, International journal of hydrogen Energy 34(899), (2009).doi:10.1016/j.ijhydene. 2008.11.021[Crossref]
  • 11. Mahmut Mata, D. & Yuksel Kaplan, Numerical study of hydrogen absorption in an lm-Ni5 hydride reactor, international journal of hydrogen Energy, 26, (2001) 957-963. Doi/10.1016/j.ijhydene.2008.11.021.[Crossref]
  • 12. Chung, C.A., C,J, HO,Thermal fl uid behavior of the hydriding and dehydriding processes in a metal hydride hydrogen storage. Doi/10.1016/SO360-3199 (01) 0030-1.[Crossref]
  • 13. Aldas, K., Mat, M.D. & Kaplan, Y., A three dimensional mathematical model for absorption in a metal hydride bed. Int.J. Hydrogen Energy, 27, (2002) 1049-1056. Doi/10.1016/j.ijhydene.2011.12.140.[Crossref]
  • 14. Dhaoua, H., Mlloulia, S., Askaria, F., Jemni, A. & Ben Nasrallaha, S. Int.J.Hydrogen Energy, 32, (2007) 1922. Doi:/10.1016/j.ijhydene.2006.08.045.
  • 15. Forde, T., Modeling of Metal hydride storage Norstoreconference/ workshop (2005), int.J.HydrogenEnergy32,1041( 2007).Doi:/10.1016/j.ijhydene.2006.07.015.
  • 16. Hahne, E. & Kallweit, J., thermal conductivity of metal hydride materials for storage of hydrogen Int.J.Hydrogen Energy 23, 107(1998).Doi:10.1016/so360-3199 (97) 00020-7. [Crossref]
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_v10026-012-0087-0
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