A 5-m-wide, 4-m-high, and 40-m-long kiln used to cure concrete pipes is made of 20-cm-thick concrete walls and ceiling (k = 0.9 Wim-K). The kiln is maintained at100°C by injecting hot steam into it. The two ends of the kiln, 4 m x 5 m in size, are made of a 3-mm-thick sheet metal covered with 2-cm-thick Styrofoam (k = 0.033Wim-K). The convection heat transfer coefficlents on the inner and the outer surfaces of the klin are 3000 Wim²K and 25 W/m2.K, respectively. Disregarding anyheat loss through the floor, determine the rate of heat loss (in w) from the kiln when the ambient air is at 2°C.40 m4 m20 cm5 m

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A 5-m-wide, 4-m-high, and 40-m-long kln used to cure concrete pipes is made of 20-cm-thick concrete walls and celling (k = 0.9 W/m K). The kiln is maintained at 100°C by injecting hot steam into It. The two ends of the kiln, 4 m x 5 m in size, are made of a 3-mm-thick sheet metal covered with 2-cm-thick Styrofoam (k = 0.033 W/m K). The convection heat transfer coefficlents on the Inner and the outer surfaces of the klin are 3000 W/m2 K and 25 W/m²«K, respectively. Disregarding any heat loss through the floor, determine the rate of heat loss (in W) from the kiln when the amblent alr is at 2'C.

A 5-m-wide, 4-m-high, and 40-m-long kln used to cure concrete pipes is made of 20-cm-thick concrete walls and celling (k = 0.9 W/m K). The kiln is maintained at 100°C by injecting hot steam into It. The two ends of the kiln, 4 m x 5 m in size, are made of a 3-mm-thick sheet metal covered with 2-cm-thick Styrofoam (k = 0.033 W/m K). The convection heat transfer coefficlents on the Inner and the outer surfaces of the klin are 3000 W/m2 K and 25 W/m²«K, respectively. Disregarding any heat loss through the floor, determine the rate of heat loss (in W) from the kiln when the amblent alr is at 2'C.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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