A layer of pulverized cork 152-mm thick is used as a layer of thermal insulation in a flat wall. The temperature of the cold side of the cork is 4.4℃, and that of the warm side is 82.2℃. The thermal conductivity of the cork at 0 ℃ is 0.036 W/(m · ℃ ), and that at 93.3 ℃ is 0.055 W/(m · ℃ ). The area of the wall is 4.64 m2. What is the rate of heat flow through the wall in watts?

A layer of pulverized cork 152-mm thick is used as a layer of thermal insulation in a flat wall. The temperature of the cold side of the cork is 4.4℃, and that of the warm side is 82.2℃. The thermal conductivity of the cork at 0 ℃ is 0.036 W/(m · ℃ ), and that at 93.3 ℃ is 0.055 W/(m · ℃ ). The area of the wall is 4.64 m2. What is the rate of heat flow through the wall in watts?

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 1.40P: As a designer working for a major electric appliance manufacturer, you are required to estimate the...

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