Abstract
This paper presents and analyzes the preliminary stages for operation improvement of district heating substations (DHS) to optimally integrate the renewable energy sources available in the area. Therefore, for the centralized heat supply system in Bucharest, several representative DHS were selected, considering different criteria. A common feature of the analyzed DHS is their location at the ends of the district heating network, with all resulted energy and functional deficiencies: inadequate hot water flow and parameters, poor heat supply, and time lag at the beginning of the heating period. For these DHS, a pertinent analysis of heat demand has been made, and heating demand variation models have been created. Thus, the analysis of the current energy situation allows the identification of the most suitable solutions to increase the energy efficiency of the DHS and of the entire district heating system.
Published Version
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