This paper is trying to define glazing type of school classrooms in order to achieve optimum energy performance and visual conditions. We analyzed and evaluated effects of orientation, glazing size and its properties, overhangs mounted on various heights and simple sensor controlled shading. Based on the results of the analysis we generated instructions for glazing design for primary schools for the central region of Slovenia in order to achieve optimum energy and visual efficiency of a classroom.
At the start of the analysis we evaluated the effect of glazing properties and their main characteristics Ug, g, and LT on energy usage in buildings. We did that by fixing one of the characteristics and then changing only the other two. Software Window 7.3 was used for generation of 15 types of glazing. In continuation we generated 13 realistic glazing types based on the properties of different glazing manufactures. Energy analysis of predefined standard classroom was made with Comfen. According to results we proposed optimum design (size, glazing properties, and shading design) for different orientations.
In the continuation we evaluated effects of glazing design types on the visual conditions in classroom. We've used visual analysis results for different design types gathered from Comfen. With the help of Ecotect, Daysim and Radiance software we've made a more detailed study. Energy and visual conditions analysis gave us results from which we chose optimum glazing design and its properties for each orientation.
In the conclusion we used our proposed fenestration design on specific real life example. We estimated energy savings in primary school Simon Jenko Kranj in Slovenia, due to new
windows installation according to our preposition.