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 |5 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/m?.K and 800 W/m?.K, respectively. For a fouling factor of 0.0003 m².K/W on the tube side and 0.0001 m?.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.

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 |5 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/m?.K and 800 W/m?.K, respectively. For a fouling factor of 0.0003 m².K/W on the tube side and 0.0001 m?.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.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

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.

Question

100%

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 |5
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/m?.K and 800 W/m?.K,
respectively. For a fouling factor of 0.0003 m².K/W on the tube side and 0.0001
m?.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.

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