抄録
Solar radiation is one of the very important factors which controls indoor air conditions of buildings, but it has not been researched fully in detail. In this paper, we are compared several past studies on its direct and sky radiation and their incident amounts to horizontal and normal planes. We found it is necessary to supplement and correct these studies by more precise experiments or inquiries. Secondly, we showed an examples of calculation by means of harmonic analysis to evaluate how many effects on the indoor air conditions the solar radiation has, through ferro-concrete wall and glass window. The results obtained are: on the horizontal and eastern or western planes, the heat inflow by solar radiation is respectively about four times and twice larger than that by mere outdoor temperature; and in case of glass window the influence of solar radiation is very much evident than the concrete wall. In addition, easier and more unerring method for the harmonic analysis is explained.
