A 3 inch schedule 40 pipe is covered with two layers of insulations. The inner layer (k1 = 0.050) is 2 inches thick and the outer layer (k2 = 0.037) is 1(1/4) inches thick. Calculate the heat loss, in Btu/hr per unit length, if the outer surface temperature of the pipe is 670°F and the outer surface temperature of the outer layer of insulation is 100°F.

A 3 inch schedule 40 pipe is covered with two layers of insulations. The inner layer (k1 = 0.050) is 2 inches thick and the outer layer (k2 = 0.037) is 1(1/4) inches thick. Calculate the heat loss, in Btu/hr per unit length, if the outer surface temperature of the pipe is 670°F and the outer surface temperature of the outer layer of insulation is 100°F.

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 1.19P: 1.19 A cryogenic fluid is stored in a 0.3-m-diameter spherical container is still air. If the...

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