(1) Steel tube with a thermal conductivity 50 W/(m-K), the outer diameter of 108 mm and the wall thickness of 5 mm, is covered with the three layer of insulation with a thickness of: 25 mm/ A = 0,038 W/(m-K) 35 mm/ A2 = 0,052 WI(m-K) 4 mm /Ag = 0,12 W/(m-K) The inner temperature of tube wall is twi=218°C and the outside surface of the second insulating layer twvs= 76°C. Calculate the all unknown temperature on the contact layers and on the outside surface of the insulation. %3D %3!
(1) Steel tube with a thermal conductivity 50 W/(m-K), the outer diameter of 108 mm and the wall thickness of 5 mm, is covered with the three layer of insulation with a thickness of: 25 mm/ A = 0,038 W/(m-K) 35 mm/ A2 = 0,052 WI(m-K) 4 mm /Ag = 0,12 W/(m-K) The inner temperature of tube wall is twi=218°C and the outside surface of the second insulating layer twvs= 76°C. Calculate the all unknown temperature on the contact layers and on the outside surface of the insulation. %3D %3!
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 1.10P: 1.10 A heat flux meter at the outer (cold) wall of a concrete building indicates that the heat loss...
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