earticle

영어

Recently, the glazing area is increased to obtain a wide outside view and to make a flexible design variation. Buildings with large glazed facades usually have a solar control devices such as venetian blinds, and internal solar shadings are often required in order to reduce the glare problem. Also the innovative glazing systems such as windows combined with shading devices,
switchable glazing, diffuse glazing, translucent and transparent insulation have been developed and constructed in european buildings. To reduce the cooling energy due to the solar incidence through the facades, it is most important to control the thermal transmittance of irradiation. The effective g-value of the solar shading device, defined as the ratio between g-value of
the window with the shading device and g-value of the window, is highly dependent on the type of shading device and the window panes. To evaluate the performance of glazing system with respect to the cooling energy consumption, it is important to measure the g-value of the each solar control devices.
The purpose of this study was to evaluate the g-value(total solar energy transmittance) in building through the experimental measurement. The measurements were performed with a solar simulator, which has rather parallel light beams and calorimetric box. With this facility, we have measured the total solar energy transmittance of the window with shading devices such as
external venetian blind. In conclusion, we could find the results of different g-value of the glazing system with a different slat angles.