Effective thermal conductivity of metal hydride powders : measurement and theoretical modelling

Kallweit, Jörg; Hahne, Erich

Effective thermal conductivity of metal hydride powders : measurement and theoretical modelling

dc.contributor.author	Kallweit, Jörg	de
dc.contributor.author	Hahne, Erich	de
dc.date.accessioned	2015-10-21	de
dc.date.accessioned	2016-03-31T07:55:00Z
dc.date.available	2015-10-21	de
dc.date.available	2016-03-31T07:55:00Z
dc.date.issued	1994	de
dc.description.abstract	Desorption of hydrogen from metal hydrides requires a supply of reaction enthalpy, absorption requires the removal of this enthalpy. Therefore, the effective thermal conductivity λe of the powdered metal hydride strongly influences the velocity of absorbing and desorbing hydrogen. Based on the cellular-model by Zehner, Bauer and Schlünder (1970, 1972, 1978) for porous media with inert void gases, an extended model is developed to calculate λe of powdery materials with a reaction between gas and solid. This reaction causes an elastic expansion of the particles. The extended model also takes into account methods of increasing λe such as a built-in metallic matrix.	en
dc.identifier.other	45329877X	de
dc.identifier.uri	http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-102941	de
dc.identifier.uri	http://elib.uni-stuttgart.de/handle/11682/2393
dc.identifier.uri	http://dx.doi.org/10.18419/opus-2376
dc.language.iso	en	de
dc.rights	info:eu-repo/semantics/openAccess	de
dc.subject.classification	Metallhydride , Wärmeleitfähigkeit	de
dc.subject.ddc	333.7	de
dc.title	Effective thermal conductivity of metal hydride powders : measurement and theoretical modelling	en
dc.type	conferenceObject	de
ubs.fakultaet	Fakultät Energie-, Verfahrens- und Biotechnik	de
ubs.institut	Institut für Thermodynamik und Wärmetechnik	de
ubs.opusid	10294	de
ubs.publikation.source	Hewitt, Geoffrey F. (Hrsg.): Heat transfer 1994. Vol. 6. Heat transfer augmentation, two-phase flow with and without phase change, conduction and insulation. Rugby, Warwickshire : Inst. of Chem. Eng., 1994 (The Institution of Chemical Engineers symposium series 135). ISBN 0-85295-350-X, S. 373-378	de
ubs.publikation.typ	Konferenzbeitrag	de

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