An insulating wall of a room is composed of an inner layer of 100 mm thick fiber board and an outer layer of 50 mm thick concrete. The wall surface temperature is 20oC inside the room and 40oC at the outer surface of concrete. Calculate the heat loss per m2 for the wall. The thermal conductivities for the fiber board is 0.048 W/m.K, and for concrete is 0.762 W/m.K.
An insulating wall of a room is composed of an inner layer of 100 mm thick fiber board and an outer layer of 50 mm thick concrete. The wall surface temperature is 20oC inside the room and 40oC at the outer surface of concrete. Calculate the heat loss per m2 for the wall. The thermal conductivities for the fiber board is 0.048 W/m.K, and for concrete is 0.762 W/m.K.
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.
Chapter1: Basic Modes Of Heat Transfer
Section: Chapter Questions
Problem 1.20P: A high-speed computer is located in a temperature-controlled room at 26C. When the machine is...
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An insulating wall of a room is composed of an inner layer of 100 mm thick
fiber board and an outer layer of 50 mm thick concrete. The wall surface
temperature is 20oC inside the room and 40oC at the outer surface of
concrete. Calculate the heat loss per m2 for the wall. The thermal
conductivities for the fiber board is 0.048 W/m.K, and for concrete is 0.762
W/m.K.
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