A steel pipe (K=45.0 W/mK) having a 0.05m O.D. is covered with a 0.042 m thick layer of magnesia (K =0.07W/mK) which in turn covered with a 0.024 m layer of fiberglass insulation (K=0.048 W/mK). The pipe wall outside temperature is 370K and the outer surface temperature of the fiberglass is 305K. What is the interfacial temperature between the magnesia and fiberglass? also calculate the steady state heat transfer.

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Q: A steel pipe (k = 45.0 W/m-K) having a 0.05m O.D is covered with a 0.042 m thick layer of magnesia…

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Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.