Engineering, 19.02.2020 01:51 tenoi14

Consider a plan composite wall that is composed of two materials with thermal conductivities kA=0.09 W/mK and kB=0.03 W. mK, and thickness LA=8 mm and LB=16 mm. The contact resistance at the interface between the two materials is known to be 0.5 m2K/W. Material A is exposed to a fluid at 130oC with heat transfer coefficient of 10 W/m2K, and material B is exposed to a different fluid at 40oC with heat transfer coefficient of 20W/m2K. What is the magnitude of rate of heat transfer through the wall if its height is 2 m and depth is 2.5 m?

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Consider a plan composite wall that is composed of two materials with thermal conductivities kA=0.09...

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