2.52 The outer surface of the grill hood shown in Fig. P2.52 is at 47C and the emissivity is 0.93. The heat transfer coefficient for convection between the hood and the surroundings at 27C is 10 W/m K. Determine the net rate of heat transfer between the grill hood and the surroundings by convection and radiation, in kW per m of surface area. To = 27C h = 10 W/m. k Fig. P2.52 T = 47C = 0.93