Repeat Prob. 822 for a heat transfer coefficient of 40 W/m 2 ?K. Data from problem 22
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Repeat Prob. 8–22 for a heat transfer coefficient of 40 W/m2?K.
Data from problem 22
Combustion gases passing through a 3-cm-internaldiameter circular tube are used to vaporize waste water at atmospheric pressure. Hot gases enter the tube at 115 kPa and 250°C at a mean velocity of 5 m/s, and leave at 150°C. If the average heat transfer coefficient is 120 W/m2 ?K and the inner surface temperature of the tube is 1108C, determine
(a) The tube length
(b) The rate of evaporation of water.
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Related Book For 
Heat And Mass Transfer Fundamentals And Applications
ISBN: 9780073398181
5th Edition
Authors: Yunus Cengel, Afshin Ghajar
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