Experimental approach for thermal contact resistance estimation at the glass / metal interface

Abdulhay, Bakri, Bourouga, Brahim, Alzetto, Florent, Al Shaer, Ali and Elmarakbi, Ahmed (2013) Experimental approach for thermal contact resistance estimation at the glass / metal interface. In: FEDSM 2013 - ASME 2013 Fluids Engineering Division Summer Meeting, 7th - 11th July 2013, Incline Village, NV.

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Official URL: http://proceedings.asmedigitalcollection.asme.org/...

Abstract

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%.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: metals, glass, contact resistance
Subjects: H300 Mechanical Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Paul Burns
Date Deposited: 13 Dec 2018 18:15
Last Modified: 13 Dec 2018 18:15
URI: http://nrl.northumbria.ac.uk/id/eprint/37254

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