Design a concentric tube heat exchanger for cooling lubricating oil that is comprised of a thin- walled inner tube of 25-mm diameter carrying water and an outer tube of 50-mm diameter carrying the oil. The exchanger operates in Parallel flow. The specific heat for water and oil are 4200 and 1900 J/kg.K and the surface heat coefficient of water and oil are 150 and 200 W/(m?.K) , respectively. Assume conduction heat transfer through the wall is negligible.
Design a concentric tube heat exchanger for cooling lubricating oil that is comprised of a thin- walled inner tube of 25-mm diameter carrying water and an outer tube of 50-mm diameter carrying the oil. The exchanger operates in Parallel flow. The specific heat for water and oil are 4200 and 1900 J/kg.K and the surface heat coefficient of water and oil are 150 and 200 W/(m?.K) , respectively. Assume conduction heat transfer through the wall is negligible.
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.
Chapter10: Heat Exchangers
Section: Chapter Questions
Problem 10.12P
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Heat Exchangers
Heat exchangers are the types of equipment that are primarily employed to transfer the thermal energy from one fluid to another, provided that one of the fluids should be at a higher thermal energy content than the other fluid.
Heat Exchanger
The heat exchanger is a combination of two words ''Heat'' and ''Exchanger''. It is a mechanical device that is used to exchange heat energy between two fluids.
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Transcribed Image Text:Design a concentric tube heat exchanger for cooling lubricating oil that is comprised of a thin-
walled inner tube of 25-mm diameter carrying water and an outer tube of 50-mm diameter
carrying the oil. The exchanger operates in Parallel flow. The specific heat for water and oil
are 4200 and 1900 J/kg.K and the surface heat coefficient of water and oil are 150 and 200
W/(m?.K) , respectively. Assume conduction heat transfer through the wall is negligible.
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