In a single-body, four-pipe transition heat exchanger, the hot combustion product gases are cooled by water. Flow rate of gases 3 kg / s, specific temperature 0.95 kJ / kg.°C; water flow 0.2 kg / s, specific temperature 4.2 kJ / kg.°C. The total heat transfer coefficient of the heat exchanger is 300 W / m2.K, heat transfer surface area is 10 m2. a) the heat transfer that occurs and the output temperatures of both fluids; b) find the logarithmic mean temperature difference.

In a single-body, four-pipe transition heat exchanger, the hot combustion product gases are cooled by water. Flow rate of gases 3 kg / s, specific temperature 0.95 kJ / kg.°C; water flow 0.2 kg / s, specific temperature 4.2 kJ / kg.°C. The total heat transfer coefficient of the heat exchanger is 300 W / m2.K, heat transfer surface area is 10 m2. a) the heat transfer that occurs and the output temperatures of both fluids; b) find the logarithmic mean temperature difference.

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

In a single-body, four-pipe transition heat exchanger, the hot combustion product gases are cooled
by water. Flow rate of gases 3 kg /s, specific temperature 0.95 kJ / kg. C; water flow 0.2 kg / s,
specific temperature 4.2 kJ / kg.°C. The total heat transfer coefficient of the heat exchanger is
300 w / m2.K, heat transfer surface area is 10 m2.
a) the heat transfer that occurs and the output temperatures of both fluids;
b) find the logarithmic mean temperature difference.
GASES 220 °C
WATER 10 °C

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