| Abstract [eng] |
The aim of the final master's thesis is to assess the technical, energy and economic feasibility of integrating additional heat generation technologies based on renewable energy sources into the district heating system of a selected city. Final project objectives: 1. To substantiate the relevance of the analysis of the selected object. 2. To conduct an analysis of scientific and technical literature addressing analogous cases. 3. To analyze the energy generation structure and heat supply operation of the investigated district heating system. 4. To assess the potential of solar heat generation and its integration into the investigated district heating system. 5. To evaluate the potential of integrating heat pumps for energy generation and supply into the district heating system. 6. To evaluate the potential for integrating thermal energy storage into the district heating system. 7. To evaluate the potential of wind energy for electricity generation to supply the operational needs of the investigated district heating system. 8. To conduct an energy and economic assessment of the selected renewable energy technologies within the investigated district heating system. In the literature review section, the possibilities of integrating municipal waste, solar energy, heat storage, wind energy, and heat pumps into an urban district heating system are examined. An analysis of the Biržai city district heating system was carried out. The potential for integrating solar thermal collectors into the Biržai city district heating network was assessed under two different scenarios. The application of heat pumps using wastewater waste heat as a heat source in the Biržai city district heating system was also evaluated. The possibility of directly using wind energy for local electricity demand was assessed, as well as the potential for converting surplus electricity into thermal energy. The possibilities of balancing the solar thermal collector system using heat storage tanks and using surplus wind energy for heat production and storage were also evaluated. An energy, economic, and environmental analysis was carried out for the analysed technologies. |
