Photovoltaic–thermal collectors for night radiative cooling and solar heating: Numerical study
| Autor: | Cherifa Abid, Mustapha Jammoukh, Abdelkabir Zaite, Naoual Belouaggadia, Laidi Zahiri, Bouchaib Hartiti |
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| Rok vydání: | 2020 |
| Předmět: |
Work (thermodynamics)
Radiative cooling Water flow business.industry 020209 energy Nuclear engineering Photovoltaic system 02 engineering and technology Radiation 021001 nanoscience & nanotechnology computer.software_genre Simulation software Air conditioning Thermal 0202 electrical engineering electronic engineering information engineering Environmental science 0210 nano-technology business computer |
| Zdroj: | Materials Today: Proceedings. 30:928-932 |
| ISSN: | 2214-7853 |
| Popis: | The radiative cooling is a natural phenomenon, which allows rejecting the heat energy stocked by earthly objects by radiation outward, through the atmosphere-window (8–13 µm). In this work, a combination of the solar heating and the radiative cooling technologies by using a photovoltaic-thermal collector (PVT) has been investigated. A numerical modeling was evaluated by using the TRNSYS16 simulation software. The thermal performances of the collector were investigated under two climates and for different water flow rates. The monthly performances of two Moroccans cities were also conducted. The numerical results obtained show that the variation of the panel temperature in comparison with that of air allows to estimate cooling powers between 50 and 70 W/m2 during the night. Likewise, the daily variation allows exploiting heating powers between 100 and 250 W/m2. The results also indicate that the combination of radiative cooling and solar heating technologies by using (PVT) save the energy for air conditioning and heating in the both Moroccans cities (Marrakech and Ouarzazate). |
| Databáze: | OpenAIRE |
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