Bitte benutzen Sie diese Kennung, um auf die Ressource zu verweisen:
http://dx.doi.org/10.18419/opus-2376
Autor(en): | Kallweit, Jörg Hahne, Erich |
Titel: | Effective thermal conductivity of metal hydride powders : measurement and theoretical modelling |
Erscheinungsdatum: | 1994 |
Dokumentart: | Konferenzbeitrag |
Erschienen in: | 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 |
URI: | http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-102941 http://elib.uni-stuttgart.de/handle/11682/2393 http://dx.doi.org/10.18419/opus-2376 |
Zusammenfassung: | 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. |
Enthalten in den Sammlungen: | 04 Fakultät Energie-, Verfahrens- und Biotechnik |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
---|---|---|---|---|
kal9.pdf | 6,56 MB | Adobe PDF | Öffnen/Anzeigen |
Alle Ressourcen in diesem Repositorium sind urheberrechtlich geschützt.