Investigation on the influences of heat transfer enhancement measures in a thermally driven metal hydride heat pump

Yang, F. S., Wang, G. X., Zhang, Z. X. and Rudolph, V. (2010) Investigation on the influences of heat transfer enhancement measures in a thermally driven metal hydride heat pump. International Journal of Hydrogen Energy, 35 18: 9725-9735. doi:10.1016/j.ijhydene.2010.06.110


Author Yang, F. S.
Wang, G. X.
Zhang, Z. X.
Rudolph, V.
Title Investigation on the influences of heat transfer enhancement measures in a thermally driven metal hydride heat pump
Journal name International Journal of Hydrogen Energy   Check publisher's open access policy
ISSN 0360-3199
1879-3487
Publication date 2010-09
Sub-type Article (original research)
DOI 10.1016/j.ijhydene.2010.06.110
Volume 35
Issue 18
Start page 9725
End page 9735
Total pages 11
Place of publication Oxford, United Kingdom
Publisher Pergamon Press
Collection year 2011
Language eng
Abstract Metal hydride heat pump (MHHP) can be utilized in a variety of applications and shows great potential in recovery of low-grade heat. Being its kernel component, the reactors should facilitate good heat and mass transfer to achieve satisfactory system performance. In this paper, the influences of certain heat transfer enhancement measures for the reactors were investigated by numerical simulation and thermodynamic analysis. Three types of reactors packed with metal hydride powder, metal hydride powder/Al foam and metal hydride compact were taken for discussion. As shown in the simulation results, for the MHHP adopting heat transfer enhancement, the coefficient of performance tends to reduce slightly while the specific heating power increases remarkably. Therefore, these measures work positively and are recommended for use in heat pump applications.
Keyword Metal hydrides
Heat pump
Enhanced heat transfer
Thermodynamic modeling
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2011 Collection
 
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Created: Sun, 17 Oct 2010, 00:09:17 EST