An insulated steam pipe located where the ambient temperature is 32 °C, has an inside diameter of 50mm with 10mm thick wall. The outside diameter of the asbestos insulation is 125 mm and the heat transfer coefficient of still air, h0 = 12 W/m2·K. Inside the pipe is steam having a temperature of 150 °C with heat transfer coefficient of hi =6000 W/m2·K. Thermal conductivity of pipe and the asbestos insulation are 45 and 0.12 W/mK respectively. (a) Draw a schematic for this problem, (b) draw the thermal resistance network, and (c) determine the heat loss per unit length of pipe
An insulated steam pipe located where the ambient temperature is 32 °C, has an inside diameter of 50mm with 10mm thick wall. The outside diameter of the asbestos insulation is 125 mm and the heat transfer coefficient of still air, h0 = 12 W/m2·K. Inside the pipe is steam having a temperature of 150 °C with heat transfer coefficient of hi =6000 W/m2·K. Thermal conductivity of pipe and the asbestos insulation are 45 and 0.12 W/mK respectively. (a) Draw a schematic for this problem, (b) draw the thermal resistance network, and (c) determine the heat loss per unit length of pipe
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.
Chapter2: Steady Heat Conduction
Section: Chapter Questions
Problem 2.38P:
2.38 The addition of aluminum fins has been suggested to increase the rate of heat dissipation from...
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An insulated steam pipe located where the ambient temperature is 32 °C, has an inside diameter of 50mm with 10mm thick wall. The outside diameter of the asbestos insulation is 125 mm and the heat transfer coefficient of still air, h0 = 12 W/m2·K. Inside the pipe is steam having a temperature of 150 °C with heat transfer coefficient of hi =6000 W/m2·K. Thermal conductivity of pipe and the asbestos insulation are 45 and 0.12 W/mK respectively. (a) Draw a schematic for this problem, (b) draw the thermal resistance network, and (c) determine the heat loss per unit length of pipe.
Please solve completely and correct. Also please answer a and b.
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