What is the heat transfer per unit length of tube


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Q: Refrigerant -134 a is being transported at 0.1 kg/s through a Teflon tube of inside diameter D; = 25 mm and outside diameter Do = 28 mm, while atmospheric air at V = 25 m/s and 300 K is in cross flow over the tube. What is the heat transfer per unit length of tube to Refrigerant-134a at 240 K?

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Mechanical Engineering: What is the heat transfer per unit length of tube
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