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heat transfer. In a double-pipe counter-flow heat exchanger, water (c=4180J/kg.C) enters the 2.5cm internal diameter tube of at 17C at a rate of 1.8kg/s. Water

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heat transfer.

In a double-pipe counter-flow heat exchanger, water (c=4180J/kg.C) enters the 2.5cm internal diameter tube of at 17C at a rate of 1.8kg/s. Water is heated by steam condensing at 120C(higg=2203kJ/kg) in the shell. If the overall heat transfer coefficient of the heat exchanger is 700W/m2.C, determine the length of the tube required in order to heat the water to 80C

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