Energy and photosynthetic performance investigation of a semitransparent photovoltaic rooftop greenhouse for building integration
The present article aims at evaluating semitransparent photovoltaic rooftop greenhouses based on organic photovoltaics and ethylene-tetrafluoroethylene. A RADIANCE/TRNSYS model is proposed. Five configurations (greenhouse roof with 0%, 25%, 50%, 75% and 100% photovoltaic-module covering) and two cit...
| Autores: | , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2023 |
| País: | España |
| Institución: | Universitat de Lleida (UdL) |
| Repositorio: | Repositori Obert UdL |
| OAI Identifier: | oai:repositori.udl.cat:10459.1/463917 |
| Acceso en línea: | https://doi.org/10.1016/j.renene.2023.118976 https://hdl.handle.net/10459.1/463917 |
| Access Level: | acceso abierto |
| Palabra clave: | Flexible photovoltaics Rooftop greenhouses Organic photovoltaics (OPVs) Ethylene tetrafluoroethylene (ETFE) Building-integrated greenhouses Simulations |
| Sumario: | The present article aims at evaluating semitransparent photovoltaic rooftop greenhouses based on organic photovoltaics and ethylene-tetrafluoroethylene. A RADIANCE/TRNSYS model is proposed. Five configurations (greenhouse roof with 0%, 25%, 50%, 75% and 100% photovoltaic-module covering) and two cities (Barcelona; Paris) have been evaluated. The findings reveal that an increase of the photovoltaic-covering surface reduces the overall energy demand of the greenhouse, but it also reduces the illumination that reaches the crops. For Barcelona, the optimal configuration for proper crop development (tomato; lettuce) is the one with 50% covering. For Paris, the optimal configuration is the one with 25% covering. In terms of energy, in the case of Barcelona, the part of the electricity demand of the greenhouse covered by the photovoltaics ranges from 14% to 63% whereas, in the case of Paris, these percentages range from 6% to 25.3%. As for the thermal behaviour of the building (adjacent office floor), the installation of the rooftop greenhouse reduces air-conditioning demand (around 30% for Barcelona and 37.7% for Paris (0% covering)). For Paris, the effect of the photovoltaic-covering percentage on the thermal demand of the adjacent floor is minimal. However, for Barcelona, it can reduce the airconditioning demand by 35% (scenario: 100% covering). |
|---|