Asked by Raul
A steam pipe is 75 mm external diameter and is 80 m long. It conveys steam at a
rate of 1000 kg/h at a pressure of 2 Mpa. The steam enters the pipe with a
dryness fraction of 0.98 and is to leave the pipe with a dryness of not less than 0.96. The pipe must be insulated – the material to be used has a thermal coefficient of conductivity of 0.08 W/mK.
If the temperature drop across the pipe is negligible, find the minimum thickness of insulation required to meet the conditions. The temperature at the outer surface of the insulation is 270C.
rate of 1000 kg/h at a pressure of 2 Mpa. The steam enters the pipe with a
dryness fraction of 0.98 and is to leave the pipe with a dryness of not less than 0.96. The pipe must be insulated – the material to be used has a thermal coefficient of conductivity of 0.08 W/mK.
If the temperature drop across the pipe is negligible, find the minimum thickness of insulation required to meet the conditions. The temperature at the outer surface of the insulation is 270C.
Answers
Answered by
zinzi
heat transfer
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