Cold water (cp = 4.18 kJ/kg·K) enters a crossflow heat exchanger at 14°C at a rate of 0.35 kg/s where it is heated by hot air (cp = 1.0 kJ/kg·K) that enters the heat exchanger at 65°C at a rate of 0.8 kg/s and leaves at 25°C. Determine the maximum outlet temperature of the cold water and the effectiveness of this heat exchanger.
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.
Cold water (cp = 4.18 kJ/kg·K) enters a crossflow
heat exchanger at 14°C at a rate of 0.35 kg/s where it
is heated by hot air (cp = 1.0 kJ/kg·K) that enters the heat
exchanger at 65°C at a rate of 0.8 kg/s and leaves at 25°C.
Determine the maximum outlet temperature of the cold water
and the effectiveness of this heat exchanger.
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