%A"Tsangrassoulis, A [Group Building Enviromental Studies, Lab. of Meteorology, Dept. of Applied Physics, Univ. of Athens (Greece)]" %A"Santamouris, M [Group Building Enviromental Studies, Lab. of Meteorology, Dept. of Applied Physics, Univ. of Athens (Greece)]" %A"Asimakopoulos, D [Group Building Enviromental Studies, Lab. of Meteorology, Dept. of Applied Physics, Univ. of Athens (Greece)]" %D1996 %I; %2 %J[] %K32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION, HOUSES, DAYLIGHTING, SHADING, PERFORMANCE, DIAGRAMS %PMedium: X; Size: pp. 223-230 %TTheoretical and experimental analysis of daylight performance for various shading systems %XThe daylight coefficient approach is used for the theoretical analysis of various shading systems. Once a set of these coefficients has been calculated, it is very easy to calculate illuminance in the interior of a room under various sky luminance distributions. The present paper examines a method based on daylight coefficients to evaluate daylight in the interior of a room. The method is compared with existing radiosity and ray-tracing methods. The examined method is experimentaly validated using measurements obtained in a PASSYS test-cell equipped with shading devices. (orig.) %0Journal Article %N;Journal ID: ENEBDR; ISSN 0378-7788; TRN: CH97G3201 %1 %CSwitzerland %Rhttps://doi.org/10.1016/S0378-7788(96)00981-4 Journal ID: ENEBDR; ISSN 0378-7788; TRN: CH97G3201 CHF %GEnglish