Steam at 320°C flows in a stainless steel pipe (k = 15 W/m-°C) whose inner and outer diameters are 5 cm and 5.5 cm, respectively. The pipe is covered with 3-cm-thick glass wool insulation (k = 0.038 W/m-°C). Heat is lost to the surroundings at 5°C by natural convection and radiation, with a combined natural convection and radiation heat transfer coefficient of 15Wm2-°C. Taking the heat transfer coefficient inside the pipe to be 80 W/m2-°C, determine the rate of heat loss from the steam per unit length of the pipe. Also determine the temperature drops across the pipe shell and the insulation. 3-76 Steam at 320°C flows in a stainless steel pipe (k =15 W/m-K) whose inner and outer diameters are 5 cm and5.5 cm, respectively. The pipe is covered with 3-cm-thickglass wool insulation (k = 0.038 W/m-K). Heat is lost to thesurroundings at 5°C by natural convection and radiation, witha combined natural convection and radiation heat transfercoefficient of 15 W/m²-K. Taking the heat transfer coefficientinside the pipe to be 80 W/m²-K, determine the rate of heat lossfrom the steam per unit length of the pipe. Also determine thetemperature drops across the pipe shell and the insulation.

Given Radius, r1 = 2.5 cm r2 = 2.75 cm r3 = 5.75 cm

Answered: Steam at 320°C flows in a stainless…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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Steam at 320°C flows in a stainless steel pipe (k = 15 W/m-°C) whose inner and outer diameters are 5 cm and 5.5 cm, respectively. The pipe is covered with 3-cm-thick glass wool insulation (k = 0.038 W/m-°C). Heat is lost to the surroundings at 5°C by natural convection and radiation, with a combined natural convection and radiation heat transfer coefficient of 15Wm²-°C. Taking the heat transfer coefficient inside the pipe to be 80 W/m²-°C, determine the rate of heat loss from the steam per unit length of the pipe. Also determine the temperature drops across the pipe shell and the insulation.

3-76 Steam at 320°C flows in a stainless steel pipe (k =
15 W/m-K) whose inner and outer diameters are 5 cm and
5.5 cm, respectively. The pipe is covered with 3-cm-thick
glass wool insulation (k = 0.038 W/m-K). Heat is lost to the
surroundings at 5°C by natural convection and radiation, with
a combined natural convection and radiation heat transfer
coefficient of 15 W/m²-K. Taking the heat transfer coefficient
inside the pipe to be 80 W/m²-K, determine the rate of heat loss
from the steam per unit length of the pipe. Also determine the
temperature drops across the pipe shell and the insulation.

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