Study on the Cooling Effect of Attached Fins on PV Using CFD Simulation

Kim, Jaemin; Nam, Yujin

doi:10.3390/en12040758

Cited by 30 publications

(9 citation statements)

References 16 publications

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“…Then, water is used to cool the PCM, which ejects heat into the environment. This last method of cooling PV modules is an important research topic (see, e.g., [44]) together with systems that add thins to the module [45].…”

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confidence: 99%

An Experimental Investigation of a Novel Low-Cost Photovoltaic Panel Active Cooling System

Benato

Stoppato

2019

Energies

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Renewable energy sources are the most useful way to generate clean energy and guide the transition toward green power generation and a low-carbon economy. Among renewables, the best alternative to electricity generation from fossil fuels is solar energy because it is the most abundant and does not release pollutants during conversion processes. Despite the photovoltaic (PV) module ability to produce electricity in an eco-friendly way, PV cells are extremely sensitive to temperature increments. This can result in efficiency drop of 0.25%/ ∘ C to 0.5%/ ∘ C. To overcome this issue, manufacturers and researchers are devoted to the improvement of PV cell efficiency by decreasing operating temperature. For this purpose, the authors have developed a low-cost and high-performance PV cooling system that can drastically reduce module operating temperature. In the present work, the authors present a set of experimental measurements devoted to selecting the PV cooling arrangement that guarantees the best compromise of water-film uniformity, module temperature reduction, water-consumption minimization, and module power production maximization. Results show that a cooling system equipped with 3 nozzles characterized by a spraying angle of 90 ∘ , working with an inlet pressure of 1.5 bar, and which remains active for 30 s and is switched off for 120 s, can reduce module temperature by 28 ∘ C and improve the module efficiency by about 14%. In addition, cost per single module of the cooling system is only 15 €.

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mentioning

confidence: 99%

An Experimental Investigation of a Novel Low-Cost Photovoltaic Panel Active Cooling System

Benato

Stoppato

2019

Energies

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“…In this study, it can be concluded that the higher the number of fins, the higher the rate of heat transfer of the solar cell. Jaemin Kim & Yujin Nam [4] analysed a study on the cooling effect of attached fins on PV using CFD simulation. The results of the CFD simulation show that the installation of the fins influenced the airflow and temperature distribution at the bottom of the PV module, where the temperature difference was reduced to less than 4.6 °C when the fins were mounted.…”

Section: Introductionmentioning

confidence: 99%

Simulation of solar PV surface temperature with dimpled fin cooling

Ibrahim

Misaran

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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A significant number of cooling technologies have been developed to maintain the PV module temperature within subscribed limits. This paper represents the simulation study of active cooling forced air convection with fins attached to the back of the solar panel using CFD SimScale software. It has been first carefully validated against experimental and numerical results available in the literature. The number of fins and the shape of perforated and dimpled in each fin were varied to compare cooling performance. Three types of fins were adapted into this simulation: traditional fins, circular, and triangle perforated/dimpled fins. The effect of solar irradiation and velocity inlet was also reviewed by applying the nominal operating condition from the experimental works. Results indicated that fin channels are a very effective cooling technique, which significantly reduces the average temperature of the PV cell, especially when increasing the number of fins from 20 to 26 fins. Also, the results show that the dimpled triangle fin had the highest average temperature drop with a percentage difference of 6% compared with the solar panel cooling with traditional fins.

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“…Typically, active and passive cooling systems [7] are adopted to reduce PV cell temperature, and several designs have been proposed in literature [8][9][10][11][12][13][14][15]. The main advantage of active cooling systems is a more efficient heat removal rate; for this reason, they are generally preferred to passive systems, in which a cooling fluid circulates without needing additional power.…”

Section: Introductionmentioning

confidence: 99%

Theoretical and Numerical Study of a Photovoltaic System with Active Fluid Cooling by a Fully-Coupled 3D Thermal and Electric Model

et al. 2020

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The paper deals with the three-dimensional theoretical and numerical investigation of the electrical performance of a Photovoltaic System (PV) with active fluid cooling (PVFC) in order to increase its efficiency in converting solar radiation into electricity. The paper represents a refinement of a previous study by the authors in which a one-dimensional theoretical model was presented to evaluate the best compromise, in terms of fluid flow rate, of net power gain in a cooled PV system. The PV system includes 20 modules cooled by a fluid circulating on the bottom, the piping network, and the circulating pump. The fully coupled thermal and electrical model was developed in a three-dimensional geometry and the results were discussed with respect to the one-dimensional approximation and to experimental tests. Numerical simulations show that a competitive mechanism between the power gain due to the cell temperature reduction and the power consumption of the pump exists, and that a best compromise, in terms of fluid flow rate, can be found. The optimum flow rate can be automatically calculated by using a semi-analytical approach in which irradiance and ambient temperature of the site are known and the piping network losses are fully characterized.

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Study on the Cooling Effect of Attached Fins on PV Using CFD Simulation

Cited by 30 publications

References 16 publications

An Experimental Investigation of a Novel Low-Cost Photovoltaic Panel Active Cooling System

An Experimental Investigation of a Novel Low-Cost Photovoltaic Panel Active Cooling System

Simulation of solar PV surface temperature with dimpled fin cooling

Theoretical and Numerical Study of a Photovoltaic System with Active Fluid Cooling by a Fully-Coupled 3D Thermal and Electric Model

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