Solar-Driven Sorption System for Seasonal Heat Storage under Optimal Control: Study for Different Climatic Zones
Solar thermal energy coupled to a seasonal sorption storage system stands as an alternative to fossil fuels to supply residential thermal energy demand in climates where solar energy availability is high in summer and low in winter, matching with a high space heating demand. Sorption storage systems...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-08-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/15/5604 |
| _version_ | 1827618456043782144 |
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| author | Alicia Crespo Cèsar Fernández Alvaro de Gracia Andrea Frazzica |
| author_facet | Alicia Crespo Cèsar Fernández Alvaro de Gracia Andrea Frazzica |
| author_sort | Alicia Crespo |
| collection | DOAJ |
| description | Solar thermal energy coupled to a seasonal sorption storage system stands as an alternative to fossil fuels to supply residential thermal energy demand in climates where solar energy availability is high in summer and low in winter, matching with a high space heating demand. Sorption storage systems usually have a high dependency on weather conditions (ambient temperature and solar irradiation). Therefore, in this study, the technical performance of a solar-driven seasonal sorption storage system, using an innovative composite sorbent and water as working fluid, was studied under three European climates, represented by: Paris, Munich, and Stockholm. All scenarios analyses were simulation-based under optimal system control, which allowed to maximize the system competitiveness by minimizing the system operational costs. The optimal scenarios profit from just 91, 82 and 76% of the total sorption system capacity, for Paris, Munich, and Stockholm, respectively. That means that an optimal control can identify the optimal sorption storage size for each location and avoid oversizing in future systems, which furthermore involves higher investment costs. The best coefficient of performance was obtained for Stockholm (0.31), despite having the coldest climate. The sorption system was able to work at minimum temperatures of −15 °C, showing independence from ambient temperature during its discharge. In conclusion, a seasonal sorption system based on selective water materials is suitable to be integrated into a single-family house in climates of central and northern Europe as long as an optimal control based on weather conditions, thermal demand, and system state is considered. |
| first_indexed | 2024-03-09T10:08:52Z |
| format | Article |
| id | doaj.art-c1f18430a4434f44af097e9165885b99 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T10:08:52Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-c1f18430a4434f44af097e9165885b992023-12-01T22:55:20ZengMDPI AGEnergies1996-10732022-08-011515560410.3390/en15155604Solar-Driven Sorption System for Seasonal Heat Storage under Optimal Control: Study for Different Climatic ZonesAlicia Crespo0Cèsar Fernández1Alvaro de Gracia2Andrea Frazzica3GREiA Research Group, University of Lleida, Pere de Cabrera s/n, 25001 Lleida, SpainGREiA Research Group, University of Lleida, Pere de Cabrera s/n, 25001 Lleida, SpainIT4S Research Group, Universitat de Lleida, Pere de Cabrera s/n, 25001 Lleida, SpainInstitito di Tecnologie Avanzate per l’Energia “Nicola Giordano”, CNR-ITAE, 98126 Messina, ItalySolar thermal energy coupled to a seasonal sorption storage system stands as an alternative to fossil fuels to supply residential thermal energy demand in climates where solar energy availability is high in summer and low in winter, matching with a high space heating demand. Sorption storage systems usually have a high dependency on weather conditions (ambient temperature and solar irradiation). Therefore, in this study, the technical performance of a solar-driven seasonal sorption storage system, using an innovative composite sorbent and water as working fluid, was studied under three European climates, represented by: Paris, Munich, and Stockholm. All scenarios analyses were simulation-based under optimal system control, which allowed to maximize the system competitiveness by minimizing the system operational costs. The optimal scenarios profit from just 91, 82 and 76% of the total sorption system capacity, for Paris, Munich, and Stockholm, respectively. That means that an optimal control can identify the optimal sorption storage size for each location and avoid oversizing in future systems, which furthermore involves higher investment costs. The best coefficient of performance was obtained for Stockholm (0.31), despite having the coldest climate. The sorption system was able to work at minimum temperatures of −15 °C, showing independence from ambient temperature during its discharge. In conclusion, a seasonal sorption system based on selective water materials is suitable to be integrated into a single-family house in climates of central and northern Europe as long as an optimal control based on weather conditions, thermal demand, and system state is considered.https://www.mdpi.com/1996-1073/15/15/5604water-based sorption storageseasonal storagesimulationscontrol optimizationclimatic zones |
| spellingShingle | Alicia Crespo Cèsar Fernández Alvaro de Gracia Andrea Frazzica Solar-Driven Sorption System for Seasonal Heat Storage under Optimal Control: Study for Different Climatic Zones Energies water-based sorption storage seasonal storage simulations control optimization climatic zones |
| title | Solar-Driven Sorption System for Seasonal Heat Storage under Optimal Control: Study for Different Climatic Zones |
| title_full | Solar-Driven Sorption System for Seasonal Heat Storage under Optimal Control: Study for Different Climatic Zones |
| title_fullStr | Solar-Driven Sorption System for Seasonal Heat Storage under Optimal Control: Study for Different Climatic Zones |
| title_full_unstemmed | Solar-Driven Sorption System for Seasonal Heat Storage under Optimal Control: Study for Different Climatic Zones |
| title_short | Solar-Driven Sorption System for Seasonal Heat Storage under Optimal Control: Study for Different Climatic Zones |
| title_sort | solar driven sorption system for seasonal heat storage under optimal control study for different climatic zones |
| topic | water-based sorption storage seasonal storage simulations control optimization climatic zones |
| url | https://www.mdpi.com/1996-1073/15/15/5604 |
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