Effect of Architectural Glazing Parameters, Shading, Thermal Mass and Night Ventilation on Public Building Energy Consumption under Hungarian Climate

Abstract

An important field of improving energy eciency of public and oce buildings with glazed facades is a conscious design of the building skin. The study first sets categories of available (conventional and sophisticated) glazing product types used in exterior walls on the basis of  thermal transmission, solar heat gain and light transmission properties. A large number of  computer simulations has been run using different glazing types, fenestration rates, fixed and moveable (controlled) external shadings, night ventilation rates and internal heat storage capacity in order to determine their effect on energy demands. The study compares heating, cooling and lighting energy demands of the internal spaces, independently from choice of  mechanical systems and energy sources in order to analyse the clear effect of building skin and related parameters on energy needs. The simulation were run for Hungarian location (Szombathely), however the results and findings can be adopted for regions of similar continental climate. The target of the study is to set guidelines for the early stages of architectural design of energy efficient glazed façade constructions and buildings.