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Water enters a tube at a flow rate of 0.2 m/s at atmospheric pressure with an inlet and outlet temperature of 34.7C and 96.5C, respectively.

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Water enters a tube at a flow rate of 0.2 m/s at atmospheric pressure with an inlet and outlet temperature of 34.7C and 96.5C, respectively. Given that the inner diameter of the tube is 28 mm and length is 200 cm while the inner surface temperature is maintained at 121.1C by steam condensing outside the tube wall. a) Determine the rate of heat transfer from the tube inner wall to the water. Provide a sketch to represent the system and state your assumptions clearly. b) Given that the length of the tube is reduced to 90 cm. Calculate the percentage of change in terms of the rate of heat transfer. c) Explain the reasons for the difference between your answers in (a) and (b)

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