A novel solar-geothermal district heating, cooling and domestic hot water system: Dynamic simulation and energy-economic analysis

摘要

In this paper a novel low temperature district heating and cooling system based on renewable energy sources is investigated by means of a dynamic simulation model and an energy-economic analysis. A novel solution consisting of geothermal, solar and biomass energy sources integration is considered. Low enthalpy geothermal well, evacuated solar collectors and auxiliary wood-chip boiler are used to supply the district heating system during the winter season. During summer, an adsorption chiller is activated in order to provide district cooling, while during all year, the system produces domestic hot water for the district users.