A thin-walled double pipe counter flow heat exchanger is used to cool oil (c= 2.20 kJ/kgK) from 150°C to 40°C at a rate of 2 kg/s by water (c=4.18 kJ/kgK) that enters at 22°C at a rate of 1.5 kg/s. Determine (a) State the thermodynamics principle/concept of the problem. (b) the rate of heat transfer in the heat exchanger (c) the exit temperature of water. Cold water 1.5 kg/s 22°C 40°C Hot oil 2 kg/s 150°C

A thin-walled double pipe counter flow heat exchanger is used to cool oil (c= 2.20 kJ/kgK) from 150°C to 40°C at a rate of 2 kg/s by water (c=4.18 kJ/kgK) that enters at 22°C at a rate of 1.5 kg/s. Determine (a) State the thermodynamics principle/concept of the problem. (b) the rate of heat transfer in the heat exchanger (c) the exit temperature of water. Cold water 1.5 kg/s 22°C 40°C Hot oil 2 kg/s 150°C

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.

Chapter7: Forced Convection Inside Tubes And Ducts

Section: Chapter Questions

Problem 7.49P

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