Rows of the thermoelectric modules of Example 3.13 are

Chapter , Problem 3.172

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Rows of the thermoelectric modules of Example 3.13 are attached to the flat absorber plate of 3.108. The rows of modules are separated by Lsep 0.5 m and the backs of the modules are cooled by water at a temperature of Tw 40 C, with h 45 W/m2 K transfer rate to the flowing water. Assume rows of 20 immediately adjacent modules, with the lengths of both the module rows and water tubing to be Lrow 20W where W 54 mm is the module dimension taken from Example 3.13. Neglect thermal contact resistances and the temperature drop across the tube wall, and assume that the high thermal conductivity tube wall creates a uniform temperature around the tube perimeter. Because of the thermal resistance provided by the thermoelectric modules, it is no longer appropriate to assume that the temperature of the absorber plate directly above a tube is equal to that of the water.

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