Air enters a cooler at 1450C and at a pressure of 3 bar and is cooled to 450C by passing through tubes of 10 mm inside diameter surrounded by water which enters the cooler at 150C and exits at 300C. Assuming the heat exchanger is counter flow, find: I) The mean temperature difference. ii) If the air velocity is limited to 6.5 m/s, what is the required length of tube? Neglect the resistance of the tube and assume water side heat transfer coefficient is 232 W/m2
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.
Air enters a cooler at 1450C and at a pressure of 3 bar and is cooled to 450C by passing through tubes of 10 mm inside diameter surrounded by water which enters the cooler at 150C and exits at 300C. Assuming the heat exchanger is counter flow, find:
I) The mean temperature difference.
ii) If the air velocity is limited to 6.5 m/s, what is the required length of tube?
Neglect the resistance of the tube and assume water side heat transfer coefficient is 232 W/m2K.
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