Reconsider Prob. 13-34. Using the EES (or other) software, evaluate the effect of the dist...

Reconsider Prob. 13-34. Using the EES (or other) software, evaluate the effect of the distance L between the black coaxial parallel disks (D = 1 m) on the radiation heat transfer coefficient. By varying the distance L between the disks from 0.05 to 3 m, plot the radiation heat transfer coefficient hrad as a function of the distance L between the disks.

Prob. 13-34

Consider two black coaxial parallel circular disks of equal diameter D that are spaced apart by a distance L. The top and bottom disks have uniform temperatures of 500°C and 520°C, respectively. Determine the radiation heat transfer coefficient hrad between the disks if they are spaced apart by L = D.

FIGURE P13–34