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Two (2) identical plane walls, both at an initial uniform temperature of 44 C are suddenly completely surrounded by a fluid (246 C). Each

Two (2) identical plane walls, both at an initial uniform temperature of 44 C are suddenly completely 

Two (2) identical plane walls, both at an initial uniform temperature of 44 C are suddenly completely surrounded by a fluid (246 C). Each plane wall has a total thickness of 0.30 m, while the height and depth (into the page) of each plane wall is 5 m by 6 m. Plane Wall A is surrounded by a fluid as described in part A below, while Plane Wall B is surrounded by a fluid as described in part B below. Determine the quantities specified in parts A and B below at an x-location halfway between the midplane and the outer surface of Plane Wall A and Plane Wall B. Solid Material Properties: p=8765 kg/m, Cp=432 J/kg.K, k=387 W/m.K A) Plane Wall A is surrounded by a fluid with a convection coefficient of 111 W/m2*K. Determine the temperature (C) at the specified location for Plane Wall A after 33 seconds have elapsed. B) Plane Wall B is surrounded by a fluid with a convection coefficient of 1291 W/m*K. Determine the temperature (C) at the specified location for Plane Wall B after 5 minutes have elapsed. A certain amount of heat transfer (kJ) will be required for Plane Wall B to reach thermal equilibrium with the fluid. Determine the fraction of that heat transfer that has occurred in the 5-minute period.

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SOLUTION A Plane Wall A surrounded by fluid with h111 Wm2K Thickness of wall L 03 m Location of interest x L2 015 m Initial temperature Ti 44C Fluid t... blur-text-image

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