Transient Thermal Analysis In Workbench

An exothermic process occurs uniformly throughout a 10-cmdiameter sphere (Isotropic Thermal Conductivity, k = 300 W m-1 K -1, Specific heat, cp = 400 J kg-1 K -1, density of sphere = 7500 kg/m3), and it generates heat at a constant rate of 1.2 MW/m3. The sphere initially is at a uniform temperature of 20C, and the exothermic process is commenced at time t = 0. To keep the sphere temperature under control, it is submerged in a liquid bath maintained at 20C. The heat transfer coefficient (h) at the sphere surface is 250 W m-2 K -1