Square plates freshly sprayed with an epoxy paint must be cured at 140 C for an extended period of time. Problem 2 (20 points) The plates are located in a large enclosure and heated by a bank of infrared lamps as illustrated in the figure. The top surface of each plate has an emissivity of =0.8 and experiences convection with a ventilation air stream that is at T-27 C and provides a convection coefficient of h =20 W/mK. The irradiation from the enclosure walls Ventilation air stream Th www is estimated to be Gwall =450 W/m, for which the plate absorptivity is awall = 0.7. Determine the irradiation that must be provided by the lamps, Glamp. The absorptivity of the plate surface for this irradiation is Clamp =0.6. Pro Enclos Lamp Glamp Painted plate