Water enters a crossflow heat exchanger (both fluids unmixed) at 16 °C and flows at the rate of 7.5 kg/s to cool 10.0 kg/s of air from 120 °C. For an overall heat transfer coefficient of 225 W/m² K and an exchanger surface area of 240 m², what is the exit air temperature? Taking the specific heats of the air and water to be constant at 1.014 and 4.182 kJ/kg K, respectively,

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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.