Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
663480 | International Journal of Heat and Mass Transfer | 2006 | 15 Pages |
Abstract
The thermal state at a solid–solid contact with interfacial heat generation requires the knowledge of two macroscopic contact parameters: the thermal contact resistance (RTC) and the heat generation factor (α). RTC is already well defined by many theoretical models, on the other hand, α remains poorly known and was never studied in the case of electro-thermal contact. On the basis of a microscopic analysis of the coupled electrical and thermal phenomena in a current tube crossing two asperities in contact, we propose a model of the heat generation factor. This one is a combination of electrical resistivities and thermal conductivities of both materials in contact. Comparison of model to experimental data are presented and discussed.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Grégory Le Meur, Brahim Bourouga, Jean-Pierre Bardon,