Thermal contact conductance of nominaly flat surfaces

Yuncu H.

HEAT AND MASS TRANSFER, vol.43, no.1, pp.1-5, 2006 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 43 Issue: 1
  • Publication Date: 2006
  • Doi Number: 10.1007/s00231-006-0087-9
  • Title of Journal : HEAT AND MASS TRANSFER
  • Page Numbers: pp.1-5


The variation of thermal conductance of contact has been investigated as a function of apparent contact pressure experimentally. Experimental data has been obtained for steel, brass, copper and aluminum test pieces having different surface roughness over a wide range of contact pressures. Experimental results are compared with the theoretical predictions of an existing theory. Comparison revealed good agreement of trend with the experimental data, however, numerical values vary widely. Theory can predict the experimental results within an over-all error of less than 35%.