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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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:	11 Oct 2019 15:02
URI:	http://nrl.northumbria.ac.uk/id/eprint/37254

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