A shell-and-tube heat exchanger with 2-shell passes and 12-tube passes is used to heat water (cp = 4180 J/kg·K) with ethylene glycol (cp = 2680 J/kg·K). Water enters the tubes at 22°C at a rate of 0.8 kg/s and leaves at 70°C. Ethylene glycol enters the shell at 110°C and leaves at 60°C. If the overall heat transfer coefficient based on the tube side is 280 W/m2·K, determine the rate of heat transfer and the heat transfer surface area on the tube side.
A shell-and-tube heat exchanger with 2-shell passes and 12-tube passes is used to heat water (cp = 4180 J/kg·K) with ethylene glycol (cp = 2680 J/kg·K). Water enters the tubes at 22°C at a rate of 0.8 kg/s and leaves at 70°C. Ethylene glycol enters the shell at 110°C and leaves at 60°C. If the overall heat transfer coefficient based on the tube side is 280 W/m2·K, determine the rate of heat transfer and the heat transfer surface area on the tube side.
Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter20: The First Law Of Thermodynamics
Section: Chapter Questions
Problem 20.13OQ
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Question
A shell-and-tube heat exchanger with 2-shell passes
and 12-tube passes is used to heat water (cp = 4180 J/kg·K)
with ethylene glycol (cp = 2680 J/kg·K). Water enters the tubes
at 22°C at a rate of 0.8 kg/s and leaves at 70°C. Ethylene glycol
enters the shell at 110°C and leaves at 60°C. If the overall
determine the rate of heat transfer and the heat transfer surface
area on the tube side.
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