Abstract
This experiment aimed to analyze the temperature behavior of photovoltaic modules, with the efficiency of the on-grid photovoltaic system, installed at the State University of West Paraná - UNIOESTE, campus of Cascavel, Paraná. The photovoltaic system consists of two ropes, with a total power of 3.3 kWp. In the first period, it was found that the panel kept clean (Panel 2), during data collection, reached a higher efficiency during the first weeks and practically the same for the last weeks, compared to the dirty panel. Achieve an average efficiency of 13.73% and 14.39%, Panel 1 and Panel 2, respectively. For the second period, the average efficiency of both panels, with inclinations of 21° and 26°, was very close, being 14.25% (Panel 1) and 14.24% (Panel 2). The third period showed a difference in the efficiency of the panels, 13.7% (Panel 1) and 14.54% (Panel 2), with inclinations of 21° and 18°, respectively. The test of means identified that there was a difference between the levels of soiling of the modules, as well as their inclinations of 21° and 18°. As for the 21° and 26° inclinations, there was no significant difference, according to the Tukey Test at 5% significance.
Highlights
The growing global energy demand is related to population development and technological and industrial advances, which lead to the acceleration of climate and environmental changes (Kannan & Vakeesan, 2016)
This study provides practical information of a residential photovoltaic system in real operating condition, installed in southern Brazil, providing data for nearby regions with similar climates
Data collection was divided into three periods, considering two factors that affect photovoltaic energy generation: dust deposited on the photovoltaic modules and the inclination of the photovoltaic modules
Summary
The growing global energy demand is related to population development and technological and industrial advances, which lead to the acceleration of climate and environmental changes (Kannan & Vakeesan, 2016). One of the solutions found by several countries to reduce environmental impacts, associated with climate change and dependence on fossil fuels, is the use of renewable energy, in which photovoltaic energy stands out (Ferreira et al, 2018). It is essential for the development of a sustainable energy matrix to improve conversion technologies and use of natural resources. When compared to other conventional energy sources, photovoltaic solar has great long-term potential, being one of the renewable technologies that has developed the most in recent years. With the advancement of technologies and, gains in specialization, it was possible to obtain a large cost reduction in photovoltaic solar energy, both for production and commercialization (Lacerda & Van Den Bergh, 2016)
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