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Experimental study the influence of surface shape and roughness of different materials on thermal contact conductance in single and multilayers wall
(Altınbaş Üniversitesi, 2020) Awad, Laith Yahya; Koç, İbrahim; Jawad, Salah Kareem
This paper presents an experimental study, the purpose of which is to know the effect of surface shape on the thermal contact conductance of two solid specimens bonded to each other. The experiment was carried out by placing copper and aluminum specimens in an electric furnace, isolating the surroundings of these specimens and measuring the temperatures at the contact surfaces of the samples. The aluminum specimens used in this study have different surfaces (some specimens have extended surfaces). The experimental results found variations in temperature distribution due to the difference in surface form, by which the aluminum thermal conductivity can be measured at various temperatures ranging from 100o C to 300o C. The results showed the efficiency and effectiveness of extended surfaces and their effect in enhancing heat transfer.