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Grade 11Thermal Physics

steam at 120 degree C is continuously passed through a 50cm long rubber tube of inner and outer radii 1cm and 1.2cm. the room temperature is 3 degree C.calculate the rate of heat flow through the walls of the tube.thermal conductivity of rubber= 0.15J/m-s-C

Profile image of Parth Malik
15 Years agoGrade 11
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1 Answer

Profile image of Chetan Mandayam Nayakar
15 Years ago

T(r),1<r<1.2, dQ/dt=(k2pilr)(dT/dr),(2pilk)rdT/dr=constant(c),(2pilk)dT=dr/r,(2pilk)(T-276)=ln(r)c,c=(2pilk)*117/ln(1.2)=dQ/dt

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