Comparison of the Thermal Behavior of Photovoltaic Panels with and Without Passive Heat Dissipation Systems Under Different Environmental Conditions Associated with Altitude Using the Finite Element Method.
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| Title: | Comparison of the Thermal Behavior of Photovoltaic Panels with and Without Passive Heat Dissipation Systems Under Different Environmental Conditions Associated with Altitude Using the Finite Element Method. |
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| Authors: | Cabrera-Escobar, José1 (AUTHOR), Vera, David2 (AUTHOR), Cantos, Lenin Orozco3 (AUTHOR), Jurado, Francisco1,2 (AUTHOR), Carrillo Rosero, Carlos Mauricio1,2 (AUTHOR), Arroba Arroba, César Hernán1,3 (AUTHOR), Cabrera Anda, Santiago Paúl1 (AUTHOR), Cabrera-Escobar, Raúl2 (AUTHOR) rvce0001@red.ujaen.es |
| Source: | Energies (19961073). Jun2026, Vol. 19 Issue 12, p2817. 18p. |
| Subject Terms: | *Finite element method, *Heat transfer, *Thermal conductivity, *Photovoltaic power generation, *Solar radiation, *Weather, *Thermal properties |
| Abstract: | The present research, using finite element method simulation, studies the heat dissipation of a fin-type passive cooling system installed on monocrystalline photovoltaic panels under different environmental conditions associated with altitude. For this purpose, three scenarios at different altitudes were analyzed: Manta (14 m.a.s.l.), Puyo (926 m.a.s.l.), and Ambato (2724 m.a.s.l.). A model simulated using the finite element method, validated in a previous investigation, was used to simulate these three cases. The model was meshed, and the boundary conditions used were obtained from meteorological data averaged over one year. The variables used in this stage were irradiance, ambient temperature, and wind speed in the time range from 08:00 to 17:00. The numerical model used in the simulation considered the mechanisms of conduction in the panel layers, mixed convection toward the surrounding air, and thermal radiation from the exposed surfaces. The results show that, in the city of Ambato, the heat sink presents its best thermal performance. Under conditions of minimum ambient temperature and solar irradiance, a maximum percentage reduction of 3.11% in the photovoltaic panel temperature was obtained, while under conditions of maximum ambient temperature and solar irradiance, the reduction reached 11.11%. This reveals that, when higher panel temperatures occur, the heat sink exhibits better performance. In general, the results showed a reduction in temperature when this heat dissipation mechanism was used. It is evident that the effectiveness of these systems depends not only on geometry or materials, but also on the atmospheric conditions associated with altitude. It is concluded that the heat dissipation capacity of passive cooling mechanisms is influenced by the meteorological conditions of the area, such as ambient temperature, solar irradiance, and wind speed, which may vary according to the altitude at which the system is located. [ABSTRACT FROM AUTHOR] |
| Database: | Energy & Power Source |
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