TY - JOUR
TI - Achieving savings by implementation of efficient hybrid heating systems
AU - Todorović Maja
AU - Banjac Miloš J
AU - Bajc Tamara S
AU - Ristanović Milan R
JN - Thermal Science
PY - 2019
VL - 23
IS - 15
SP - 1683
EP - 1693
PT - Article
AB - Regarding to the structure of final energy consumption in buildings and  National Action Plans, the paper gives a short overview of energy  consumption in buildings in Serbia, showing that the greatest potential for  achieving savings lies in the implementation of measures which improve  energy efficiency. Considering that over 60% of energy requirements for  buildings is related to thermal energy, particular attention should be paid  to the centralized heating systems, both during the design of a new system,  and in the reconstruction of the existing one. Further discussed are the  heat sources for the heating systems. The seasonal heat load duration curve  for winter conditions in accordance to the Typical Meteorological Year for  Belgrade is constructed and displayed. The analysis of the conventional  system with a fossil fuel source, as well as the analysis of a hybrid heat  source are conducted. The savings achieved in the primary energy, heating  bills and CO2 emission reduction, which are attained by the use of a hybrid  system, are shown in comparison with the conventional systems. Collecting  data on investment costs, as well as the prices of energy and fuels in  Serbian market, enabled calculation of the payback period when replacing the  conventional system by the new hybrid one.