For steady one-dimensional heat conduction in a solid medium, the rate of heat transfer is inversely proportional to the cross-sectional area for heat transfer. The following figure shows the axial temperature distributions of two collinear rods of equal diameter. The rods are arranged so that the faces are contacting one another with a heat source at one end and a heat sink at the opposite end. The rod is smooth stainless steel grade 316, with a thermal conductivity equal to 17 W/mK. What is the thermal contact resistance $frac{degree C cdot m^2}{W}$?
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Thermal contact resistance is the resistance to heat flow between two surfaces in contact with each other. It is caused by imperfections in the surfaces and the presence of air or other insulating materials between them. In this case, we have two collinear rods Show more…
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