A single pass heat exchanger is to be designed to heat 100,000 lbm of water in an
Question:
A single pass heat exchanger is to be designed to heat 100,000 lbm of water in an hour from 60°F to 100°F by condensation of water vapor at 230°F on the shell side. Each tube has an inner diameter of 1.2 in and a wall thickness of 0.12 in. The inner surface convection heat transfer coefficient is 480 Btu/h·ft2·°F and the outer surface convection heat transfer coefficient is 2000 Btu/h·ft2·°F. If the inlet velocity of water (cpc = 1 Btu/lbm·°F and ρ = 62.3 lbm/ft3) on the tube side is 4 ft/s, determine the required number of tubes and length of tubes. Assume the thermal resistance of the tubes is negligible.
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Fundamentals of Thermal-Fluid Sciences
ISBN: 978-0078027680
5th edition
Authors: Yunus A. Cengel, Robert H. Turner, John M. Cimbala
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