Superheated steam at an average temperature 200C is transported through a steel pipe (k = 50 W/mK,
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Superheated steam at an average temperature 200°C is transported through a steel pipe (k = 50 W/m·K, Do = 8.0 cm, Di = 6.0 cm, and L = 20.0 m). The pipe is insulated with a 4-cm thick layer of gypsum plaster (k = 0.5 W/m·K). The insulated pipe is placed horizontally inside a warehouse where the average air temperature is 10°C. The steam and the air heat transfer coefficients are estimated to be 800 and 200 W/m2·K, respectively. Calculate
(a) The daily rate of heat transfer from the superheated steam
(b) The temperature on the outside surface of the gypsum plaster insulation.
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Related Book For
Fundamentals of Thermal-Fluid Sciences
ISBN: 978-0078027680
5th edition
Authors: Yunus A. Cengel, Robert H. Turner, John M. Cimbala
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