Calorimetric methods for measuring surface heat flux use Joulean heating to keep the surface isothermal. This limits them to measuring the heat flux of surfaces that are hotter than their surroundings. Presented in this paper is a method whereby reversible Peltier effect heat transfer is used to maintain this isothermality, making it suitable for surfaces that are either hotter or colder than the surroundings. The paper outlines the theory for the method and describes physical models that have been constructed, calibrated, and tested. The tested physical models were found capable of measuring heat fluxes with an absolute accuracy of 1 percent over a wide range of temperature (5–50°C) and heat flux (15–500 W/m2), while maintaining isothermality to within 0.03 K. A drawback of the method is that it appears to be suited only for measuring the heat flux from thick metallic plates.
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The Measurement of Surface Heat Flux Using the Peltier Effect
E. C. Shewen,
E. C. Shewen
Pavement Management Systems Ltd., Cambridge, Ontario, Canada
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K. G. T. Hollands,
K. G. T. Hollands
Department of Mechanical Engineering, University of Waterloo, Waterloo, Ontario, Canada
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G. D. Raithby
G. D. Raithby
Department of Mechanical Engineering, University of Waterloo, Waterloo, Ontario, Canada
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E. C. Shewen
Pavement Management Systems Ltd., Cambridge, Ontario, Canada
K. G. T. Hollands
Department of Mechanical Engineering, University of Waterloo, Waterloo, Ontario, Canada
G. D. Raithby
Department of Mechanical Engineering, University of Waterloo, Waterloo, Ontario, Canada
J. Heat Transfer. Aug 1989, 111(3): 798-803 (6 pages)
Published Online: August 1, 1989
Article history
Received:
October 26, 1987
Online:
October 20, 2009
Citation
Shewen, E. C., Hollands, K. G. T., and Raithby, G. D. (August 1, 1989). "The Measurement of Surface Heat Flux Using the Peltier Effect." ASME. J. Heat Transfer. August 1989; 111(3): 798–803. https://doi.org/10.1115/1.3250754
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