Consider an aluminum pan used to cook beef stew on top of an electric range.
The bottom section of the pan is L 0.3 cm thick and has a diameter of D
20 cm. The electric heating unit on the range top consumes 800 W of power
during cooking, and 90 percent of the heat generated in the heating element is
transferred to the pan. During steady operation, the temperature of the inner
surface of the pan is measured to be 110°C. Express the boundary conditions
for the bottom section of the pan during this cooking process.