Two small rectangular flat plates, 0.5 m by 1 m are located 0.5 m apart. These plates are located in

Two small rectangular flat plates, 0.5 m by 1 m are located
0.5 m apart. These plates are located in a large room. The walls of the room
are maintained at 35 C. The plates exchange radiation with each other and with
the room. However, consider only the plate surfaces facing each other. The
temperature and diffusivity of the plates are T1 = 900 C, T2
= 1200 C, _1 = 0.8, and _2 = 0.6,
respectively. Find the rate of heat transfer from the plates to the room.