Dear all,

I am studying for a test and im stuck on the exercise shown below. I think I have solved question a, I am not sure of my answer could someone check this and help me with b?

Thank you!

Heat is generated uniformly in a long and flat stainless steel plate. One side of the plate has a very thick heat insulation. The other side of the plate is directly exposed to an environment and loses heat to the environment through a combination of free convection and radiation. a. If the surface temperature at the other side of the plate without insulation is measured to be at 80C, calculate the maximum temperature in the plate. (10 points) b. In part (a), estimate the heat transfer coefficient that describes the free convection between the plate and the environment. (15 points) Emission coefficient of stainless steel: Absorption coefficient of the environment: 0.6 Radiation constant: 1.0 =5.67108W/(m2K4) dxdT=9x+4 ax x=0dxdT=0 dxd=9x^ dT=x9xdx T=29x2+C2 at x=cos0 C2=T1+2aD2 T=T1+2a(D2x2) x=20=T1+2a(D24b2)=353.15+22030000 0.08240.083 =356.75K