Evaluation of Windows and Energy Performance Case-Study: Colored Building, Faculty of Architecture (EMU)

ABSTRACT: The purpose of the current research is to make it possible to compare the energy performance of different windows in a simple model. The net energy gain through windows depends both on the thermal transmittance (U-value) and the total solar energy transmittance (g-value). This fact makes it difficult to choose a window with respect to the energy performance in a given case. To be able to compare several glazing and windows combinations in an easy way, a dynamic simulation tool have been used, giving the net energy gain of U-value and g-value which are based on the orientation and specific latitude of the windows. In addition, each single simulation shows the net energy gain in an educational building which makes it possible to evaluate the energy performance of different glazing with regard to solar radiation and heat loss for the Colored Building located in Eastern Mediterranean University. The simulation tool, WINDOW7.2, provides an easy way for comparing different advanced windows and giving the optimum alternative for Cyprus climate. The method is not only useful for comparing window products so to replace the existing ones, but is also valuable for handling the energy performance of windows in a general and realistic way, in the early phase of designing a new building, via considering local climatic conditions. Keywords: Windows, Glazing, Energy Performance, Simulation Tools, Hot-Humid Climate. …………………………………………………………………………………………………………………………