While the air is mixing, the oil does not mix. The product of the total heat transfer coefficient and the surface area is 750 W / ° C and the mass flow of air is twice that of
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 cross flow heat exchanger at 18 ° C and exits at 70 ° C, while oil enters at 80 ° C (Cp = 2150 J / kg. ° C). While the air is mixing, the oil does not mix. The product of the total heat transfer coefficient and the surface area is 750 W / ° C and the mass flow of air is twice that of oil.
a) Calculate the efficiency of the heat exchanger,
b) The mass flow rate of the air,
c) The heat transfer.
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