Example continued
But this is not the whole story: besides emitting radiation, we receive radiation from the outside: Pabsorbed = ??AT4 =
(5.67x10-8W/m2K4)*(.97)*(1.5m2)*(297K)4 = 642 Watts absorbed!
Hence, the net power emitted by the body via radiation is: Pnet = 733 Watts - 642 Watts = 91 Watts. The peak of this radiation is at:
??peak = b/T = 2.9x10-3m*K / 307K = 9.5?m which is in the infrared (as expected).