Chapter 2, Problem 2.14P

Calculate the rate of heat loss per foot and the thermal resistance for a 15-cm schedule 40 steel pipe covered with a 7.5-cm-thick layer of $85\%$ magnesia. Superheated steam at $\text{150°C}$ flows inside the pipe $({\bar{h}}_c=170\text{ W/}\left({\text{m}}^{\text{2}}\text{K}\right)\text{)}$, and still air at $\text{16°C}$ is on the outside $({\bar{h}}_c=30\text{ W/}\left({\text{m}}^{\text{2}}\text{K}\right)\text{)}$.