Reduction of energy dissipations at thermally distorted pressed contacts

F.R. Al-Astrabadi, S.D. Probert, P.W. O'Callaghan and A.M. Jones

Applied Energy, 1979, vol. 5, issue 1, 23-51

Abstract: The macroscopic constriction that a heat flux experiences in passing between [`]isothermally flat' stainless steel and copper surfaces, which are pressed together, can be alleviated by the insertion of a copper gauze. The overall joint conductance is usually increased (except with small heat fluxes for which the enhanced micro-constriction, due to the presence of the gauze, exceeds the macro-constriction it alleviates). A design is proposed for an insert that aids energy transfer across distorted contacts which may be exposed to prolonged heat flux and thermal cycling.

Date: 1979
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