Summary
According to the procedures in the second paper, the authors carried out an analysis of factorial effects on the long-wave radiant heat wit%n gable roofed open.type barns under summer condition. The long-wave radiant heat that were subjected to the analysis were the diurnal average and the maximum, between 9:00 and 17:00, of downward long-wave radiant heat on an infinitesimal horizontal element located in the center of the barn one meter above the ground. The results were obtained as follows :HomePage
1) Factors that significantly affected the diurnal average and the diurnal maximum were revealed (Table 2 and 9).
2) Equations that are able to easily predict the diurnal average (Q'p,mn) and the diurnal maximum (Q'p,mx) were obtained (Eqs.(1) and (2)). The predicted values of different gable roofed open-type barns are calculated by the sums of the estimated values of the effects of several factors as indicated in Table 3 and 10.
3) Optimum levels of each factor that minimize the diurnal average and the diurnal maximum were presented (Table 8 and 11).