Calculate the rate of heat loss to the surroundings and the quantity of steam that would...
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Calculate the rate of heat loss to the surroundings and the quantity of steam that would condense per hour per meter of a 1.5 inch steel pipe (o.d.-0.04826 m, i.d.-0.04089 m, k-45 W/m.K) containing saturated steam at 130°C. The heat transfer coefficient on the steam side is 11,400 W/m² K and that on the outside of the pipe to air is 5.7 W/m²K. Ambient air averages 15°C for the year. (b) How much energy would be saved in 1 year if the pipe is insulated with 5 cm thick insulation having a thermal conductivity of 0.07 W/m.K. The heat transfer coefficients on the steam and air sides are the same as in (a). Calculate the rate of heat loss to the surroundings and the quantity of steam that would condense per hour per meter of a 1.5 inch steel pipe (o.d.-0.04826 m, i.d.-0.04089 m, k-45 W/m.K) containing saturated steam at 130°C. The heat transfer coefficient on the steam side is 11,400 W/m² K and that on the outside of the pipe to air is 5.7 W/m²K. Ambient air averages 15°C for the year. (b) How much energy would be saved in 1 year if the pipe is insulated with 5 cm thick insulation having a thermal conductivity of 0.07 W/m.K. The heat transfer coefficients on the steam and air sides are the same as in (a).
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The outer surface area per meter length of a cylindrical pipe is given by A 2r where r is the radius ... View the full answer
Related Book For
Fundamentals of Thermal-Fluid Sciences
ISBN: 978-0078027680
5th edition
Authors: Yunus A. Cengel, Robert H. Turner, John M. Cimbala
Posted Date:
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