Thermal contact conductance (TCC) is used to characterize heat transfer across interfaces in contact. It is important in thermal modeling of turbomachinery components and finds many other applications in the aerospace, microelectronic, automotive and metal working industries. In this paper, a new method for measuring TCC is described and demonstrated. A test rig is formed from an instrumented split tube with in-line washers and loading applied under controlled conditions. The experimental method and data analysis are described, and the effects on thermal contact conductance of important parameters such as the contact pressure, surface roughness, temperature, thermal conductivity, and material strength are investigated. Normalization of the TCC measured in the experimental program was carried out using appropriate surface and material parameters. The results of this normalization are used to compare the normalized experimental results with various models from the literature.
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e-mail: j.chew@surrey.ac.uk
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July 2011
Research Papers
A New Method for Measuring Thermal Contact Conductance—Experimental Technique and Results
Simon Woodland,
Simon Woodland
Thermo-Fluid Systems University Technology Centre, Faculty of Engineering and Physical Sciences,
University of Surrey
, Guildford, Surrey, GU2 7XH, UK
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Andrew D. Crocombe,
Andrew D. Crocombe
Division of Mechanical, Medical, and Aerospace Engineering, Faculty of Engineering and Physical Sciences,
University of Surrey
, Guildford, Surrey, GU2 7XH, UK
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John W. Chew,
John W. Chew
Thermo-Fluid Systems University Technology Centre, Faculty of Engineering and Physical Sciences,
e-mail: j.chew@surrey.ac.uk
University of Surrey
, Guildford, Surrey, GU2 7XH, UK
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Stephen J. Mills
Stephen J. Mills
Department of Combustion Engineering,
Rolls Royce
, Derby, Derbyshire, DE24 8BJ, UK
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Simon Woodland
Thermo-Fluid Systems University Technology Centre, Faculty of Engineering and Physical Sciences,
University of Surrey
, Guildford, Surrey, GU2 7XH, UK
Andrew D. Crocombe
Division of Mechanical, Medical, and Aerospace Engineering, Faculty of Engineering and Physical Sciences,
University of Surrey
, Guildford, Surrey, GU2 7XH, UK
John W. Chew
Thermo-Fluid Systems University Technology Centre, Faculty of Engineering and Physical Sciences,
University of Surrey
, Guildford, Surrey, GU2 7XH, UKe-mail: j.chew@surrey.ac.uk
Stephen J. Mills
Department of Combustion Engineering,
Rolls Royce
, Derby, Derbyshire, DE24 8BJ, UKJ. Eng. Gas Turbines Power. Jul 2011, 133(7): 071601 (8 pages)
Published Online: March 10, 2011
Article history
Received:
August 28, 2009
Revised:
January 27, 2010
Online:
March 10, 2011
Published:
March 10, 2011
Citation
Woodland, S., Crocombe, A. D., Chew, J. W., and Mills, S. J. (March 10, 2011). "A New Method for Measuring Thermal Contact Conductance—Experimental Technique and Results." ASME. J. Eng. Gas Turbines Power. July 2011; 133(7): 071601. https://doi.org/10.1115/1.4001770
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