Authors propose a thermoeconomic analysis of a renewable polygeneration system producing power, desalinated water, heating and cooling and connected to a district heating and cooling network supplying a small district. A comparison between two layouts is performed, a hybrid (solar and geothermal) and a geothermal one, by performing a 1-year dynamic simulation and processing the results on different time bases. A parametric analysis is carried out to assess system performance and its capability to match the time-dependent energy demands. The hybrid configuration provides the best thermodynamic and environmental performances; conversely the geothermal one provides the highest economical profitability, achieving a much lower simple payback time, averaging 4.3 years instead of the 8.4 years of the hybrid configuration.
5.18 Energy Management in Geothermal Energy Systems
Vanoli, Laura
2018-01-01
Abstract
Authors propose a thermoeconomic analysis of a renewable polygeneration system producing power, desalinated water, heating and cooling and connected to a district heating and cooling network supplying a small district. A comparison between two layouts is performed, a hybrid (solar and geothermal) and a geothermal one, by performing a 1-year dynamic simulation and processing the results on different time bases. A parametric analysis is carried out to assess system performance and its capability to match the time-dependent energy demands. The hybrid configuration provides the best thermodynamic and environmental performances; conversely the geothermal one provides the highest economical profitability, achieving a much lower simple payback time, averaging 4.3 years instead of the 8.4 years of the hybrid configuration.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
