Experimentos en túnel de viento sobre paneles fotovoltaicos montados en el suelo

López, Adriana Olvera; Parnás, Vivian Elena; Cataldo, Johan Villalobos

doi:10.4067/s0718-50732019000100015

Cited by 7 publications

(3 citation statements)

References 13 publications

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“…In particular, except for a net wind of 0 • , the largest wind coefficient was distributed at 135 • to 225 • to 225 • of headwind, which confirms that the headwind direction has a significant impact on the wind load of solar panels. This trend was similar to that reported by Shademan et al [13] and Lopez et al [25]. In addition, in the characteristics of wind coefficients resulting from changes in airflow in the wind tunnel, the drag coefficients were distributed in uniform flows up to 10% greater or equal to the boundary layer.…”

Section: Wind Power Coefficientssupporting

confidence: 90%

Wind Coefficient Distribution of Arranged Ground Photovoltaic Panels

et al. 2021

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Solar panels installed on the ground receive wind loads. A wind experiment was conducted to evaluate the wind force coefficient acting on a single solar panel and solar panels arranged in an array. The surface roughness did not have a significant effect on the change in vertical force, which is the wind force coefficient acting on the vertical surface of a single solar panel. An examination of the change in wind direction angle showed that the largest vertical force coefficient was distributed in the 0° forward wind direction on the front of the solar panel, the 345° reverse wind direction on the rear side, and the 135° and 225° diagonal directions on the rear panel. Furthermore, an examination of the change in wind force coefficient according to the change in solar panel inclination angle (β) showed that the drag coefficient was the highest at the 40° inclination angle of the panel (β), followed by the 30° and 20° inclination angles. However, the lift coefficient and vertical force coefficient were not significantly affected by the inclination angle of the panel. The wind force coefficient of the panels arranged in an array was influenced by the wind direction angle and panel position. With the exclusion of the nearest row at a wind direction angle of 0°, all the panels in the array showed lower coefficients than those in the single-panel experiment. In the case of the panels placed inside, the wind speed was decreased by the surrounding panels. As a result, the wind force coefficient was lower than that of the single-panel experiment. This outcome is attributed to the small delamination at the end of the panels by the surrounding array of panels compared with that of the single-panel experiment.

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Section: Wind Power Coefficientssupporting

confidence: 90%

Wind Coefficient Distribution of Arranged Ground Photovoltaic Panels

et al. 2021

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“…Wind tunnel experiments are an essential tool for examining the flow control of solar panels, as they allow for controlled testing of design variables and environmental conditions. These experiments offer several opportunities for improving solar farm design and performance, including gaining a better understanding of aerodynamic performance, validating computational models, testing innovative panel designs, optimizing panel placement and spacing, and developing advanced tracking systems [8,175]. However, wind tunnel experiments encounter several challenges when simulating airflow over solar panels.…”

Section: Research Gapsmentioning

confidence: 99%

Solar Energy Success: Mastering the Parameters that Matter

Ali¹,

Gatti²

2023

Preprint

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Solar energy is a rapidly growing sector, and solar farms are playing an increasingly important role in meeting the world's energy needs. However, as the size and complexity of these farms increase, so do the challenges associated with managing them efficiently. This article presents a comprehensive analysis of the fundamental parameters that underpin solar energy systems. Focusing on the latest research, we examine the challenges and opportunities intrinsic to the implementation of solar energy systems, paying particular attention to the various parameters that contribute to their performance. These parameters encompass a range of factors such as thermal performance, atmospheric boundary layer, solar energy meteorology, heat islands, cloud influences, agrivoltaic systems, shading factors, and surface energy budget. The review underscores the importance of considering a diverse array of parameters when developing solar energy systems to optimize their efficiency and effectiveness. Ultimately, by unraveling these challenges and opportunities, we can work towards creating more sustainable and reliable renewable energy sources and reducing our dependence on non-renewable alternatives.

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“…Various experiments carried out in wind tunnels have analyzed the effect of wind speed on the performance of photovoltaic cells, showing that, for example, drops in performance due to dust accumulation are greater as wind speed increases [30], moreover, wind speed plays a role in e ciency variations for differently mounted modules, as shown by an article that evaluated two photovoltaic modules (monocrystalline and polycrystalline silicon) under controlled conditions in a wind tunnel in the presence of an arti cial solar simulator [25]. Different wind speeds and attack angles were applied to a ground-mounted photovoltaic panel in a wind tunnel, tested at 15° and 23° inclinations in an open terrain [12]. Another study evaluated photovoltaic panels installed on building roofs.…”

Section: Introductionmentioning

confidence: 99%

Influence of dust deposition, wind and rain on photovoltaic panels efficiency in Arequipa – Peru

Ramírez-Revilla

Guzmán

Navarrete

et al. 2022

International Journal of Sustainable Energy

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Photovoltaic solar technology is undergoing remarkable progress and occupies an important place among the most used renewable energies. In the present study, the in uence of dust, wind and rain on the performance of a photovoltaic system operating in Arequipa -Peru was evaluated. To determine the e ciency of photovoltaic panels in uenced by external factors, a photovoltaic system was designed and installed, voltage, electric current, solar irradiance and temperatures were measured. For the dirt tests, three types of dust were used to simulate the atmospheric dust of the city: cement, ashlar (volcanic stone) and clay dust were used. The parameter considered for the deposition of the powders on the panels was surface density (g/m2). The particle size was determined by granulometry, the samples were analyzed by scanning electron microscopy and energy dispersive spectroscopy (SEM / EDS), obtaining spectra, microphotographs and chemical composition.For the wind factor, three speeds were determined within a range of average speeds recorded in urban areas, and tests were carried out in natural rain conditions. The results show that from 06:00 a.m. to 5:30 p.m. the energy generation e ciency of the photovoltaic panels decreases due to the increase of dust deposition. As well, it is shown that the in uence of the wind increases e ciency slightly and that the performance of photovoltaic panels is directly in uenced in rainy conditions.

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Experimentos en túnel de viento sobre paneles fotovoltaicos montados en el suelo

Cited by 7 publications

References 13 publications

Wind Coefficient Distribution of Arranged Ground Photovoltaic Panels

Wind Coefficient Distribution of Arranged Ground Photovoltaic Panels

Solar Energy Success: Mastering the Parameters that Matter

Influence of dust deposition, wind and rain on photovoltaic panels efficiency in Arequipa – Peru

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