A steam pipe, made of copper, has an inside diameter of 5 cm and an outside diameter of 6.2 cm. To reduce thermal loss to the surroundings, the pipe is insulated with 2.55 cm thick fiberglass. An aluminum foil of a thickness of 0.2 mm covers the insulation. Find the rate of heat loss from the pipe using the following data: hi = 142 W/m K, Ti = 150 C, ho = 68 W/m K, To = 27C, Lpipe = 98.5 m.
A steam pipe, made of copper, has an inside diameter of 5 cm and an outside diameter of 6.2 cm. To reduce thermal loss to the surroundings, the pipe is insulated with 2.55 cm thick fiberglass. An aluminum foil of a thickness of 0.2 mm covers the insulation. Find the rate of heat loss from the pipe using the following data: hi = 142 W/m K, Ti = 150 C, ho = 68 W/m K, To = 27C, Lpipe = 98.5 m.
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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A steam pipe, made of copper, has an inside diameter of 5 cm and an outside diameter of 6.2 cm. To reduce thermal loss to the surroundings, the pipe is insulated with 2.55 cm thick fiberglass. An aluminum foil of a thickness of 0.2 mm covers the insulation. Find the rate of heat loss from the pipe using the following data: hi = 142 W/m K, Ti = 150 C, ho = 68 W/m K, To = 27C, Lpipe = 98.5 m.
[Ans.: 0.43 kW].
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