Question

Consider a refrigeration truck traveling at 55 mph at a location where the airtemperature is 80F. The refrigerated compartment of the truck can be considered to the a 9-ft-wide,8-ft-high, and 20-ft-long rectangular box. The refrigeration system of the truck removes heat at arate of 600 Btu/min. The outer surface of the truck is coated with a low-emissivity material, andthus radiation heat transfer is very small. Determine the averagetemperature of the outer surface ofthe refrigeration compartment of the truck. Assume the air flow over the entire outer surface to beturbulent, and the heat transfer coefficient at the front and rear surfaces to be equal to that on sidesurfaces.

Answer 1

T= 77.7 F

Step-by-step explanation:

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