TY - JOUR
TI - Impact of orientation and building envelope characteristics on energy consumption case study of office building in city of Nis
AU - Vasov Miomir
AU - Stevanović Jelena N
AU - Bogdanović Veliborka B
AU - Ignjatović Marko G
AU - Randjelović Dušan J
JN - Thermal Science
PY - 2018
VL - 22
IS - 15
SP - 1499
EP - 1509
PT - Article
AB - Buildings are one of the biggest energy consumers in urban environments, so  its efficient use represents a constant challenge. In public objects and  households, a large part of the energy is used for heating and cooling. The  orientation of the object, as well as the overall heat transfer coefficient  (U-value) of transparent and non-transparent parts of the envelope, can have  a significant impact on building energy needs. In this paper, analysis of the  influence of different orientations, U-values of envelope elements, and size  of windows on annual heating and cooling energy for an office building in  city of Nis, Serbia, is presented. Model of the building was made in the  Google SketchUp software, while the results of energy performance were  obtained using EnergyPlus and jEplus, taking into ac-count the parameters of  thermal comfort and climatic data for the area of city of Nis. Obtained  results showed that, for varied parameters, the maximum difference in annual  heating energy is 15129.4 kWh, i. e per m2 27.75 kWh/m2, while the maximum  difference in annual cooling energy is 14356.1 kWh, i. e per m2 26.33 kWh/m2.  Considering that differences in energy consumption are significant, analysis  of these parameters in the early stage of design process can affect on  increase of building energy efficiency. [Project of the Serbian Ministry of  Education, Science and Technological Development, Grant no. TR36037:  Construction of Student hostels in Serbia at the beginning of 21st century]