Consider two heat exchanger configurations: parallel-flow and counter-flow. For both configurations cooling water at a flow rate of 1.5 kg/s enters the heat exchanger at 30°C and exits at 45.1°C. This water cools unused engine oil at a flow rate of 1 kg/s from 95°C to 50°C. Both configurations have the same overall heat transfer coefficient of 9,000 W/m²/K. Determine the following: 1. What is the required heat transfer area for each configuration? 2. Give that both configurations have the same inlet and outlet temperatures, what is the basis of the different areas calculated in part a?

Consider two heat exchanger configurations: parallel-flow and counter-flow. For both configurations cooling water at a flow rate of 1.5 kg/s enters the heat exchanger at 30°C and exits at 45.1°C. This water cools unused engine oil at a flow rate of 1 kg/s from 95°C to 50°C. Both configurations have the same overall heat transfer coefficient of 9,000 W/m²/K. Determine the following: 1. What is the required heat transfer area for each configuration? 2. Give that both configurations have the same inlet and outlet temperatures, what is the basis of the different areas calculated in part a?

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

Consider two heat exchanger configurations: parallel-flow and counter-flow.
For both configurations cooling water at a flow rate of 1.5 kg/s enters the heat
exchanger at 30°C and exits at 45.1°C. This water cools unused engine oil at a
flow rate of 1 kg/s from 95°C to 50°C. Both configurations have the same
overall heat transfer coefficient of 9,000 W/m2/K.
Determine the following:
1. What is the required heat transfer area for each configuration?
2. Give that both configurations have the same inlet and outlet temperatures,
what is the basis of the different areas calculated in part a?

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