Spectral absorptivity, and the spectral reflectivity for a spectrally selective diffuse surface are as shown in Figure 2. (a) Sketch the spectral transmissivity.
(b) If solar irradiation with G = 750 W/m2 and the spectral distribution of a blackbody at
5800 K is incident on the surface, determine the fractions of the irradiation that are
transmitted, reflected, and absorbed by the surface.
(c) If the temperature of the surface is 350 K, determine the emissivity.
(d) Determine the net heat flux by radiation at the surface of the material.