Question 5.7 In a parallel flow heat exchanger, hot fluid enters the heat exchanger at a temperature of 150°C and a mass flow rate of 3 kg/s. The cooling medium enters the heat exchanger at a temperature of 30°C with a mass flow rate of 0.5 kg/s and Examiner's Signature Moderator's Signature Page leaves at a temperature of 70°C. The specific heat capacities of the hot and cold fluids are 1150 J/kg-K and 4180 J/kg K, respectively. The convection heat transfer coefficient on the inner and outer side of the tube is 300 W /m2.K and 800 W /m2.K, respectively. For a fouling factor of 0.0003 m2.K/W on the tube side and 0.0001 m2.K/W on the shell side, determine the overall heat transfer coefficient, the exit temperature of the hot fluid as well as the surface area of the heat exchanger.

Question 5.7 In a parallel flow heat exchanger, hot fluid enters the heat exchanger at a temperature of 150°C and a mass flow rate of 3 kg/s. The cooling medium enters the heat exchanger at a temperature of 30°C with a mass flow rate of 0.5 kg/s and Examiner's Signature Moderator's Signature Page leaves at a temperature of 70°C. The specific heat capacities of the hot and cold fluids are 1150 J/kg-K and 4180 J/kg K, respectively. The convection heat transfer coefficient on the inner and outer side of the tube is 300 W /m2.K and 800 W /m2.K, respectively. For a fouling factor of 0.0003 m2.K/W on the tube side and 0.0001 m2.K/W on the shell side, determine the overall heat transfer coefficient, the exit temperature of the hot fluid as well as the surface area of the heat exchanger.

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.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.41P

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