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International Heat Transfer Conference 11

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

MEASUREMENTS OF THE THERMAL CONTACT CONDUCTANCE BETWEEN A SOLID SURFACE AND A ZEOLITE POWDER WITH THE MODIFIED LASER-FLASH METHOD

Andreas Griesinger
Institut fur Thermodynamik und Warmetechnik Universitat Stuttgart Pfaffenwaldring 6, D-70550 Stuttgart Germany

Klaus Spindler
Institut fur Thermodynamik und Warmetechnik Universitat Stuttgart Pfaffenwaldring 6, D-70550 Stuttgart Germany

Erich Hahne
Institut fur Thermodynamik und Warmetechnik, Universitat Stuttgart, 70550 Stuttgart, Germany

DOI: 10.1615/IHTC11.2990
pages 101-106

Abstract

This paper presents experimental results of the thermal contact conductance between a solid surface and a zeolite powder. For the measurements the laser-flash method was modified. The advantage of this method is that the sample is heated by a laser pulse without contact and the temperature is measured by a pyrometer also without contact. Measurements of the thermal contact conductance were carried out in the pressure range of 0.0015 bar < ρ < 30 bar with the filling gases hydrogen, nitrogen and argon. The thermal contact conductance between a copper plate lying on top of the zeolite powder and the zeolite powder varies between 3 W/m2K and 423 W/m2K.

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