To cool a summer home without using a vapor- compression refrigeration cycle, ai

Question

To cool a summer home without using a vapor- compression refrigeration cycle, air is routed through a plastic pipe (k = 0.15 W/m . K, Di = 0.15 m, Do = 0.17 m) that is submerged in an adjoining body of water. The water temperature is nominally at T infinity = 17 degree C. and a convection coefficient of h0 1500W/m2 . K is maintained at the outer surface of the pipe. If air from the home enters the pipe at a temperature of Tm,i = 29 degree C and a volumetric flow rate of Vi = 0. 025 m3/s, what pipe length L is needed to provide a discharge temperature of Tm,0 = 21 degree C? What is the fan power required to move the air through this length ot pipe if its inner surface is smooth?

Explanation / Answer

To cool a summer home without using a vapor- compression refrigeration cycle, ai

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