13.2-4. Convection, Conduction, and Overall U. A gas at 450 K is flowing inside a 2-in. steel pipe, Schedule 40. The pipe is insulated with 51 mm of lagging having a mean k = 0.0623 W/m · K. The convective heat-transfer coefficient of the gas inside the pipe is 30.7 W/m2 · K and the convective coefficient on the outside of the lagging is 10.8. The air is at a temperature of 300 K. a. Calculate the heat loss per unit length of 1 m of pipe using resistances. b. Repeat, using the overall Uo based on the outside area Ao

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Explanation:

Hypothesis - In the sciences, a provisional supposition from which to draw conclusions that shall be in accordance with known facts, and which serves as a starting-point for further investigation. Prediction - The action of predicting future events; an instance of this, a prophecy, a forecast.

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