| Keywords |
Solar heat gain coefficient(SHGC) ; Venetian blind ; Glazing system ; Solar radiation ; Solar calorimeter |
| Abstract |
Energy performance of glazing systems can be evaluated by U-value and SHGC(g-value, solar heat gain coefficient) through experiment and simulation. Normally the venetian blind has been used to obtain the comfortable daylighting environment and prevent the overheating due to the incident solar radiation. We can anticipate that the exterior shading device is superior to the interior shading device with regard to the cooling load reduction through the fenestration system by blocking the incident solar radiation. This paper aimed to evaluate the effect of interior and exterior venetian blinds on the SHGC of glazing system. SHGC was evaluated through the experiment and simulation. In results, the SHGC was different from each cases according to the location and slat angle of venetian blind. Also significant dependence on the intensity of incident solar radiation through the fenestration system was found in comparison of the SHGC according to the solar incident angle. |