Abstract
This paper describes a method to calculate the basic weighting factors by solving a total of 16 heat balance equations including the surface of furniture against a unit pulse excitation absorbed by the i th interior surface and to obtain the cooling load weighting factors for solar heat gain through windows without blinds by combining the basic weighting factors and the distribution ratios of solar radiation transmitted through windows without blinds on each surface of the room calculated from an approximate equation proposed by Xia and Kimura in accordance with the basic theory of dynamic cooling load calculation for air-conditioning as described in the 11th edition of SHASE Handbook. Calculation results indicate that the basic theory and calculation procedures of the 11th edition of SHASE Handbook are valid and the weighting factors relating space cooling load to solar radiation transmitted through windows without blinds calculated from present paper are quite different from the values of SHASE because of considering the thermal delay characteristics of furniture in this study. This study confirms that the thermal delay characteristics of furniture has a substantial influence upon estimating the space cooling load from solar heat gain through windows without blinds.
