An insulated steam pipe with negligible thickness has a length of L $=30$ m and an inner radius of r $=50$ mm$.$ An insulation layer with a thickness of $10$ mm and a thermal conductivity of k $=0\mathrm{.}16$ W m$-1$ k$-1$ is used. The inner and outer surfaces of the pipe insulation are maintained at average temperatures of T$1=110\backslash$deg C and T$2=60\backslash$deg C$,$ respectively. Neglecting the interface thermal resistance and assume $1-$D heat transfer, determine the rate of heat loss in W from the steam through the pipe insulation. Provide the answer to one decimal place and enter the numerical value only $($e$.$g$.20\mathrm{.}1$ but not $20\mathrm{.}1$ W$).$THESE ARE PRACTICE Q$\text{'}$S SO DONT USE AI$,$ I WANT TO LEARN METHOD AND WORKED ANSWERS