First test field performance of highly efficient flat plate solar collectors with transparent insulation and low-cost overheating protection
The present work demonstrates prototypes of highly efficient flat plate solar thermal collectors prototypes based on transparent insulation materials (TIM) technology for efficiency improvement and an overheating protection system. The design and optimization of the collectors have been numerically...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2022 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/366595 |
| Acceso en línea: | https://hdl.handle.net/2117/366595 https://dx.doi.org/10.1016/j.solener.2022.02.007 |
| Access Level: | acceso abierto |
| Palabra clave: | Solar collectors Insulation (Heat) Energy conservation Flat plate solar collector Thermal insulation material Overheating protection system Collector testing Col·lectors solars Aïllament tèrmic Energia -- Estalvi Àrees temàtiques de la UPC::Energies::Energia solar fotovoltaica Àrees temàtiques de la UPC::Física::Termodinàmica |
| Sumario: | The present work demonstrates prototypes of highly efficient flat plate solar thermal collectors prototypes based on transparent insulation materials (TIM) technology for efficiency improvement and an overheating protection system. The design and optimization of the collectors have been numerically carried out using a previously developed simulation tool based on an in-house software platform (NEST) capable of simulating all the entities constituting the system as a whole and using efficient coupling between the elements. Three design variants for the demonstration have been previously tested under laboratory conditions. These collectors are then mounted on the roof of a hospital building. Their performance is comparatively tested along with a conventional flat plate solar collector, under actual meteorological conditions and during long periods. The energy collected is about 2.5 and 1.4 times higher than standard collectors in winter and spring. Thus, due to the long-term exposure of the collectors, aspects such as reliability, durability, energy performance, and correct functioning of the protection system have been analyzed to improve the detected shortcomings for the future generations of the present design. |
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