Water flowing at 2 kg/s through a 40-mm-diameter tubeis to
Chapter 8, Problem 8.35(choose chapter or problem)
Water flowing at 2 kg/s through a 40-mm-diameter tubeis to be heated from 25 to 75C by maintaining the tube surface temperature at 100C.(a) What is the required tube length for these conditions?(b) To design a water heating system, we wish to con-sider using tube diameters in the range from 30 to 50 mm. What are the required tube lengths forwater flow rates of 1, 2, and 3 kg/s? Represent thisdesign information graphically. (c) Plot the pressure gradient as a function of tube diameter for the three flow rates. Assume the tube wall is smooth.
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