A thin disk is maintained at 75 degrees celsius and placed on the surface of a large medium maintained at 10 deg C. The thermal conductivity of the medium is 1.4 W/m-deg C, and there is a heat loss of 36 W. The shape factor, S is closest to:
a) 20 cm
b) 40 cm
c) 60 cm
d) 80 cm.© BrainMass Inc. brainmass.com October 9, 2019, 9:21 pm ad1c9bdddf
The temperature difference is 75 C (disk temperature) - 10 C Large medium temperature = 65 ...
This solution calculates the shape factor of a thin disk maintained at a temperature of 75 degrees celsius.