Acertain room has 2kw heat loss is to be heated by air collector of single glass cover and w=1.5m, l=3m, h=5cm 1920 w/m, 7,-25*c, ra 0.87, 4.-4.5 w/m. x,6,-0.9, & .=0.9. # the mass flow rate of air=0.27 kg/s, and inlet a temperature 45*c, will the collector is sufficient? estimate the supply air temperature and overall system efficiency. b: discuss briefly, based on the performance analysis, "a major parameters taking into account to improve the soli collectors