Achieving savings by implementation of efficient hybrid heating systems
2019
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.
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