An experimental device is designed and developed in order to estimate thermal conditions at the Glass / Metal contact interface. The device is made of two parts: the upper part contains the tool (piston) made of bronze and a heating device to raise the temperature of the piston to 700° C. The lower part is composed of a lead crucible and a glass sample. The assembly is provided with a heating system, an induction furnace of 6 kW for heating the glass up to 950° C. Both parts are put in contact through a mechanical system consisting of a pneumatic cylinder sliding on a column and a pump providing the required pressure in the enclosure. The developed experimental procedure has permitted the estimation of the Thermal Contact Resistance TCR using a developed measurement principle based on an inverse technique. The semi-transparent character of the glass has been taken into account by an additional radiative heat flux and an equivalent thermal conductivity. After the set-up tests, reproducibility experiments for a specific contact pressure have been carried out. Results shows a good repeatability of the registered and estimated parameters such as the piston surface temperature, heat flux density and TCR. The maximum dispersion of the estimated TCR doesn’t exceed 6%.
- Fluids Engineering Division
Experimental Approach for Thermal Contact Resistance Estimation at the Glass / Metal Interface
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Abdulhay, B, Bourouga, B, Alzetto, F, Al Shaer, A, & Elmarakbi, A. "Experimental Approach for Thermal Contact Resistance Estimation at the Glass / Metal Interface." Proceedings of the ASME 2013 Fluids Engineering Division Summer Meeting. Volume 1C, Symposia: Gas-Liquid Two-Phase Flows; Industrial and Environmental Applications of Fluid Mechanics; Issues and Perspectives in Automotive Flows; Liquid-Solids Flows; Multiscale Methods for Multiphase Flow; Noninvasive Measurements in Single and Multiphase Flows; Numerical Methods for Multiphase Flow; Transport Phenomena in Energy Conversion From Clean and Sustainable Resources; Transport Phenomena in Materials Processing and Manufacturing Processes; Transport Phenomena in Mixing; Turbulent Flows: Issues and Perspectives. Incline Village, Nevada, USA. July 7–11, 2013. V01CT27A005. ASME. https://doi.org/10.1115/FEDSM2013-16411
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