Question: A 1 0 m long pipe with an inner radius r 1 = 2 5 m m and outer radius r 2 = 4 0

A 10m long pipe with an inner radius r1=25mm and outer radius r2=40mm is used to
transfer steam at a temperature of T1=200C. The heat transfer coefficient on the inner
surface is h=1400Wm2.C and the thermal conductivity of the pipe is k=18Wm.C. If
the temperature on the outer surfaces of the pipe is T2=20C,
a. Derive the differential equation and express the boundary conditions for steady one
dimensional heat conduction through the pipe
b. Obtain a relation for variation of temperature in the pipe
c. Calculate the rate of heat loss from the pipe
A 1 0 m long pipe with an inner radius r 1 = 2 5

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