Fin Problem 4 (25 points) Consider a plane wall 60 mm in length. Heat generation is present. The left side of this wall is a plane face in contact with

30°C air (Note the convection coefficient is 50 W/m2 K).Rectangular fins are on the right side of the wall. These fins are 20 mm in length and 2 mm thick. The air temperature on the right side of the wall is 15°C and the convective heat transfer coefficient is 12 W/m2 K. The thermal conductivity of the wall is 25 W/m K, the heat generation rate is 105 W/m and the thermal conductivity of the fins is 250 W/m K. Note the separation gap between the fins 2 mm and there are four fins attached to this section. Calculate the maximum temperature in the wall