Cooling silicon photovoltaic cells using finned heat sinks and the effect of inclination angle

Johnston, Ellis; Szabo, Peter S. B.; Bennett, Nick

doi:10.1016/j.tsep.2021.100902

Cited by 18 publications

(5 citation statements)

References 34 publications

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“…The photovoltaic effect namely the transformation of solar energy ("photon") into electricity ("volt") was discovered in 1839 by physicist A.Becquerel. To achieve these conversion devices called solar cells are used, made up of semiconductor materials in which a constant electric field has been artificially created (Johnston, 2021;Selimli, 2021).…”

Section: Photovoltaic Conversionmentioning

confidence: 99%

Graphical Interface for Electrical Dimensioning of an On-Grid Photovoltaic System

Alexa,

Ţăranu,

Hudişteanu

et al. 2024

Journal of Applied Engineering Sciences

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Energy is an essential element in the development of mankind and is the engine that has made possible all the discoveries and innovations of recent decades. It is found behind the comfort we have in everyday life, whether at home, at the office, or when traveling: an optimal temperature in the room, light at anytime, appliances to ease us and make our lives more beautiful. An energy system based on renewable energy has the ability to provide electricity in an economical, sustainable, long-term, non-polluting way and can serve the increasing population. One such example is represented by photovoltaic (PV) panels, which produces electricity from captured solar energy and is one of the solutions considered for reducing energy. The dimensioning of a photovoltaic system, from a technical and economic efficiency point of view, involves the analysis of input data, output data and hence the characteristics of an efficient system. The analysis can be done analytically, but also with the help of dedicated software, the result being, in the end, a safe system in terms of preventive operation and maintenance. In the article was made the dimensioning of a system, analytical and automatic – using software application – to determine if the result obtained – the photovoltaic system – is the same regardless of the method used.

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Section: Photovoltaic Conversionmentioning

confidence: 99%

Graphical Interface for Electrical Dimensioning of an On-Grid Photovoltaic System

Alexa,

Ţăranu,

Hudişteanu

et al. 2024

Journal of Applied Engineering Sciences

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“…Cooling Technique Temperature Reduction (°C ) [17] Multi-way forced convective 14.4 [18] Aluminum fin 1 [19] U-shaped fins cooling 2 [20] Aluminum with perforated ribs 10 [21] Finned heat sinks 11…”

Section: Referencementioning

confidence: 99%

Finned PV Natural Cooling Using Water-Based TiO2 Nanofluid

Aboushi

Hamdan

2022

Sustainability

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The efficiency of PV (photovoltaic) modules is highly dependent on the operating temperature. The objective of this work is to enhance the performance of PV by passive cooling using aluminum fins that have been nanocoated (like those on an automobile radiator). A rise in the cell temperature of the module PV leads to a decrease in its performance. As a result, an effective cooling mechanism is required. In this work, the performance of the PV module has been improved using natural convection, which was achieved by placing three similar PV modules next to each other in order to test them simultaneously. The first panel will be the base panel and will be used for comparison purposes. An automotive radiator (with aluminum fins) was firmly fixed onto the rear of the other two PV modules, and the fins of the third PV panel had titanium oxide (TiO2) water-based nanofluid applied to them. The power produced by the PV modules, as well as their rear side temperatures, were recorded every 30 min over four months. A temperature reduction of 4.0 °C was attained when TiO2 water-based nanofluid was sprayed onto the panel’s finned rear side. This was followed by the scenario where the rear side was only finned, with a temperature drop of 1.0 °C. As a result of the temperature reduction, the percentage of power produced by the coated-finned PV and the finned PV increased by 5.8 and 1.5 percent, respectively. This caused an increase in PV efficiency of 1.1 percent for coated-finned panels and 0.4 percent for finned PV.

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“…Different technologies to improve the efficiency of photovoltaic panels by passive cooling, using air, are studied in the literature [8,13,[32][33][34][35][36][37][38][39]. Detailed studies on air cooling of photovoltaic panels are carried out in the following works [11,40].…”

Section: Related Researchmentioning

confidence: 99%

Enhancement of PV Panel Power Production by Passive Cooling Using Heat Sinks with Perforated Fins

et al. 2021

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This paper presents a numerical model regarding the passive cooling of PV panels through perforated and non-perforated heat sinks. A typical PV panel was studied in a fixed position, tilted at 45 degrees from the horizontal with the wind direction towards its backside. A challenging approach was used in order to calibrate the base case of the numerical model according to the NOCT conditions. Further validation of the accuracy of the numerical simulation consisted of a comparison between the results obtained for the base case, or heat sink, with horizontal non-perforated fins and the experiments presented in the literature. Six types of heat sink attached to the backside of the PV panel were numerically studied. The analyzed configurations focused on heat sinks with both perforated and non-perforated fins that were distributed horizontally and vertically. The CFD simulation was also conducted by modeling the air volume around the PV panel in real wind conditions. The main output parameters were the average temperature and the convective heat transfer coefficient on the front and back of the PV panel. The most important effect of cooling was achieved in low wind conditions and high levels of solar radiation. For vair = 1 m/s, G = 1000 W/m2 and ambient temperature tair = 35 °C, the percentage of maximum power production achieved 83.33% for the base case, while in the best cooling scenario it reached 88.74%, assuring a rise in the power production of 6.49%.

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Cooling silicon photovoltaic cells using finned heat sinks and the effect of inclination angle

Cited by 18 publications

References 34 publications

Graphical Interface for Electrical Dimensioning of an On-Grid Photovoltaic System

Graphical Interface for Electrical Dimensioning of an On-Grid Photovoltaic System

Finned PV Natural Cooling Using Water-Based TiO2 Nanofluid

Enhancement of PV Panel Power Production by Passive Cooling Using Heat Sinks with Perforated Fins

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