A heat exchanger is used to heat cold water at 15°C entering at a rate of 2 kg/s with hot air at 85°C entering at a rate of 3 kg/s. The heat exchanger is not insulated and is losing heat at a rate of 25 kJ/s. If the exit temperature of hot air is 20°C, the exit temperature of cold water is (a) 28°C (b) 35°C (c) 38°C (d) 41°C (e) 80°C
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.
A heat exchanger is used to heat cold water at 15°C entering at a rate of 2 kg/s with hot air at 85°C entering at a rate of 3 kg/s. The heat exchanger is not insulated and is losing heat at a rate of 25 kJ/s. If the exit temperature of hot air is 20°C, the exit temperature of cold water is (a) 28°C (b) 35°C (c) 38°C (d) 41°C (e) 80°C
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