# Guyss need help (1 Viewer)

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#### nahidaktare

Steam at 280°C flows in a stainless steel pipe (k = 15.2 W/m °C) whose inner and outer diameters are A cm and B cm, respectively. The pipe is covered with C cm thick glass wool insulation (k = 0.038 W/m °C). Heat is lost to the surroundings at 6°C by natural convection and radiation, with a combined natural convection and radiation heat transfer coefficient of 15 W/m2 °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. Your answer should be given in Watts.

#### JaredJames

In future you should name your thread something related to the content, otherwise you may get no replies.

Jared

#### nahidaktare

aww k tatz my first time that zz why but i'll keep that in mind...

M still trying to find the correct way to deal with it..

#### JaredJames

aww k tatz my first time that zz why but i'll keep that in mind...

M still trying to find the correct way to deal with it..
Good English is required as per PF guidelines as well.

#### nahidaktare

sure I'm still trying to find a way to tackle this question if ya guys could help me out here that would be great. Thanks again

#### nahidaktare

i got the an answer which is 7.5W. Could any cross check with me. Thanks

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