Energy consumption and economic analysis of different heating systems in serbian building

Abstract

Energy consumption in buildings at the global level is 20 - 40% of total energy consumption, while in Serbia it is at the level even of 50 %. This consumption is related to the exploitation conditions of buildings, where the largest consumer is heating system with ratio of 50 - 60 %. This paper represents the investigations in simulation of different heating systems in typical Serbian building. It is analyzed the electric space heating, district heating, gas heating and coal central heating, for typical Serbian building with variable thermal insulation thickness. The investigated building was located in Kragujevac, Serbia. The building is simulated in software EnergyPlus while Open Studio plug-in Google SketchUp was used for building design. Paper shows the real consumption of primary and final energy in Serbian building. Finally, the economic analysis was performed for different heating systems, which shown that the gas heating system is the most effective heating systems for the Serbian building – it has a small primary energy consumption and it is cost effective.