A counter-flow heat exchanger with both fluids unmixed is used to heat water [cp = 4.181 kJ/(kg K)] from 50°C to 90°C, flowing at the rate of 2.0 kg/s. Determine the overall heat transfer coefficient if the hot engine oil [cp = 1.9 kJ/(kg K)] flowing at the rate of 3.6 kg/s enters at 110°C. The heat transfer area is 30 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.
A counter-flow heat exchanger with both fluids unmixed is used to heat water [cp = 4.181 kJ/(kg K)] from 50°C to 90°C, flowing at the rate of 2.0 kg/s. Determine the overall heat transfer coefficient if the hot engine oil [cp = 1.9 kJ/(kg K)] flowing at the rate of 3.6 kg/s enters at 110°C. The heat transfer area is 30 m2.
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