12.6-1. Insulation Needed for Food Cold Storage Room. A food cold storage room is to beconstructed of an inner layer of 19.1 mm of pine, a middle layer of cork board, andan outer layer of 50.8 mm of concrete. The inside wall surface temperature is -178°Cand the outside surface temperature is 29.4°C at the outer concrete surface. Themean conductivities are for pine, 0.151; cork, 0.0433; and concrete, 0.762 W/m K.The total inside surface area of the room to use in the calculation is approximately39 m2 (neglecting corner and end effects). What thickness of cork board is needed tokeen the heat loss to 586 W?

Write the expression of heat loss.

Answered: 12.6-1. Insulation Needed for Food Cold…

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.3DP

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