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A stream pipe of radius 5 cm carries stream at 100 degree celcius.The pipe is covered by a jacket of insulating material 2cm thick having a thermal conductivity 0.07W/m-K .If the temp. at the outer wall of the pipe jacket is 20 degree celcius,how much heat is lost through the jacket per meter length in an hour?


A stream pipe of radius 5 cm carries stream at  100 degree celcius.The pipe is covered by a jacket of insulating material 2cm thick having a thermal conductivity 0.07W/m-K .If the temp. at the outer wall of the pipe jacket is 20 degree celcius,how much heat is lost through the jacket per meter length in an hour?


Grade:upto college level

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