A thin-walled double-pipe counter-flow heat exchanger is to be used to cool oil (cp = 2200 J/kg·K) from 150°C to 40°C at a rate of 2 kg/s by water (cp = 4180 J/kg·K) that enters at 22°C at a rate of 1.5 kg/s. The diameter of the tube is 2.5 cm, and its length is 6 m. Determine the overall heat transfer coefficient 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.
A thin-walled double-pipe counter-flow heat exchanger
is to be used to cool oil (cp = 2200 J/kg·K) from 150°C to
40°C at a rate of 2 kg/s by water (cp = 4180 J/kg·K) that
enters at 22°C at a rate of 1.5 kg/s. The diameter of the tube is
2.5 cm, and its length is 6 m. Determine the overall heat transfer
coefficient of this heat exchanger.
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