) In a plane composite wall system, wall A has a thermal conductivity k_{A} = 15 W / m .K, thickness L_{A} = 5mm , and wall B has a uniform volumetric energy generation dot q_{R} = 2 * 10 ^ 5 * W / (m ^ 3) k b = 25W / m .K L_{a} = 30 mm. The left surface of wall A is well- insulated and the right surface of wall B is exposed to convection with T_{0} = 15 deg * C h = 10W / (m ^ 2) .K . There are straight rectangular fins on the right surface of wall B with length L_{f} = 20mm , thickness t = 2mm spacing between each fin 8 = 2mm and thermal conductivity k f = 250W / m .k .

Insulation

(a) Find T_{1} , T_{2} and T_{3}

I need to know step by step how to calculate T3 since I don't know what formula to use in the fins

Q1) In a plane composite wall system, wall A has a thermal conductivity kx=15 W/m,K4 thickness L=5mm, and wall B has a unform volumetric energy generation n=2105W/m2,k4=25W/m,K4,L4=30 mm. The left surface of wall A is welle insulated and the right surfoce of wall B is exposed to corrvection with T=15C,h= 10W/m2.K. There are straight rectangular fins on the right surface of wall B with length L=20mm, thickness t=2mm, spacing between each fin 5=2mm, and thermal conductivity k3=250W/m.K (a) Draw the temperature distribution in the composite wall system. (b) Find T4,T2, and T3 Q1) In a plane composite wall system, wall A has a thermal conductivity kx=15 W/m,K4 thickness L=5mm, and wall B has a unform volumetric energy generation n=2105W/m2,k4=25W/m,K4,L4=30 mm. The left surface of wall A is welle insulated and the right surfoce of wall B is exposed to corrvection with T=15C,h= 10W/m2.K. There are straight rectangular fins on the right surface of wall B with length L=20mm, thickness t=2mm, spacing between each fin 5=2mm, and thermal conductivity k3=250W/m.K (a) Draw the temperature distribution in the composite wall system. (b) Find T4,T2, and T3