Refrigerant-134a is being transported at (0.08 mathrm{~kg} / mathrm{s}) through a Teflon tube of inside diameter (D_{i}=20

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Refrigerant-134a is being transported at \(0.08 \mathrm{~kg} / \mathrm{s}\) through a Teflon tube of inside diameter \(D_{i}=20 \mathrm{~mm}\) and outside diameter \(D_{o}=25 \mathrm{~mm}\), while atmospheric air at \(V=28 \mathrm{~m} / \mathrm{s}\) and \(300 \mathrm{~K}\) is in cross flow over the tube. What is the heat transfer rate per unit length of tube to Refrigerant-134a at \(240 \mathrm{~K}\) ?

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Fundamentals Of Heat And Mass Transfer

ISBN: 9781119220442

8th Edition

Authors: Theodore L. Bergman, Adrienne S. Lavine

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