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Steam at 3 2 0 ° 𝐶 flows in a stainless steel pipe ( 𝑘 = 1 5 𝑊 𝑚 – 𝐾 whose inner and outer diameters are 5 cm and 5 . 5 cm , respectively. The pipe is covered with 3 – 𝑐 𝑚 – thick glass wool insulation ( 𝑘 = 0 . 0 3 8 𝑊 𝑚 * 𝐾 ) . Heat is lost to the surroundings at
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Steam at flows in a stainless steel pipe whose inner and outer diameters are cm and cm respectively. The pipe is covered with thick glass wool insulation Heat is lost to the surroundings at by natural convection and radiation, with a combined natural convection and radiation heat transfer coefficient and of
a Taking the heat transfer coefficient inside the pipe to be determine the rate of heat loss from the steam per unit length of pipe.
b What is the temperature at the outer surface of the pipe and the outer surface of the insulation?
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