TY - JOUR
TI - Building envelope influence on the annual energy performance in office buildings
AU - Harmati Norbert L
AU - Folić Radomir J
AU - Magyar Zoltán
AU - Dražić Jasmina
AU - Kurtović-Folić Nadja
JN - Thermal Science
PY - 2016
VL - 20
IS - 2
SP - 679
EP - 693
PT - Article
AB - The objective of the research is to determine the quantitative influence of  building envelope on the annual heating and cooling energy demand in office  buildings demonstrated on a reference office-tower building located in Novi  Sad, Serbia. The investigation intended to find preferable and applicable  solutions for energy performance improvement in currently inefficient office  buildings. A comparative and evaluative analysis was performed among the  heating energy expenses and simulated values from the multi-zone model  designed in EnergyPlus engine. The research determines an improved window to  wall ratio using dynamic daylight simulation and presents the influence of  glazing parameters (U-value, Solar heat gain coefficient - SHGC) on the  annual energy performance. Findings presented window to wall ratio reduction  down to 30% and point out the significance of the SHGC parameter on the  overall energy performance of buildings with high internal loads. The  calculation of the air-ventilation energy demand according to EN 15251 is  included respectively. Results offer effective methods for energy performance  improvement in temperate climate conditions.