Analysis of Ground Thermal Control Systems for Solar Photovoltaic Performance Enhancement

Reda, Mayameen N.; Spinnler, M.; Al-Kayiem, Hussain H.; Sattelmayer, Thomas

doi:10.2495/epm200051

Cited by 7 publications

(6 citation statements)

References 14 publications

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“…An oscillatory heat exchanger configuration embedded in the ground is used by MN R et al to cool the panels during the day. As a result, the surface temperature of the PV during the day decreases by about 8°C, and the efficiency increases by 10% [22]. A similar study was conducted by Al-Waeli et al by choosing an oscillatory heat exchanger configuration to improve PV performance.…”

Section: Introductionmentioning

confidence: 79%

Investigation of Spirals Rectangular and Rectangular Tubes Collector Design in Photovoltaic Solar Cell Cooling Systems

Khairunnisa¹,

Arifin²,

Kristiawan³

et al. 2022

IJHT

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As the primary basis for electricity production, fossil fuels continue to decline. Solar Photovoltaic (PV) can be developed by utilizing solar energy. However, solar PV has low efficiency due to overheating from solar irradiation. This article analyzed forced convection Sunwatt 50Wp solar PV water cooling to lower the PV temperature and increase efficiency. The heat exchanger uses a spiral and rectangular configuration mounted on the back of the Sunwatt 50Wp solar PV panel with water flow. Sunwatt 50Wp solar PV testing using a solar simulator at an intensity of 470 W/m2, 625 W/m2, 870 W/m2, and 1000 W/m2. The test results show a decreased working temperature on spiral cooling at all intensities compared to solar PV without cooling. This impacts the low-performance value of solar PV without cooling. The intensity of 1000 W/m2 has a high value due to the release of electrons from the atoms in the cell. These results impact increasing electricity efficiency in Sunwatt 50Wp solar PV by cooling. At high intensity, the temperature increases causing the ability to increase efficiency to decrease. However, water cooling can increase electrical efficiency because the particles are evenly distributed in the heat exchanger, which causes a high heat transfer rate.

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Section: Introductionmentioning

confidence: 79%

Investigation of Spirals Rectangular and Rectangular Tubes Collector Design in Photovoltaic Solar Cell Cooling Systems

Khairunnisa¹,

Arifin²,

Kristiawan³

et al. 2022

IJHT

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“…They studied the water flow rate variation and found that it is insignificant, up to 0.024 kg/s. An innovative active cooling technology incorporating a ground heat exchanger with the PV panel has been developed by Reda et al [13,14]. They reported that the water ground heat exchanger reduced the temperature of the PV panel surface by around 8-10℃, which achieved 9.0% more efficiency than the non-cooled PV panel.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of PV/T Passive Natural Air Cooling by Backside Attached Fins

Al-Azawiey¹,

Mohamed²,

Abdu³

2023

IJEPM

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An existing PV system is cooled by heat dissipation to air by straight fins arrays attached at the backside of the panels. However, a little average temperature drop has been achieved in the plant. The current research aims to simulate and investigate the low cooling performance experienced in the plant and recommend improved PV cooling by backside installed fins. A CAD model was constructed with CATIA software and imported to ANSYS-Fluent to simulate and investigate the cause of low cooling performance. In addition, cooling performance by 45°, 90°and 135° have been studied. The solar PV panel has 1000-mm-width and 2000-mm-length, whereas the fins' base dimensions are 830-mmwidth, and 1260-mm-length and each fin has 80-mm-height. The reference case study's average temperature measured in the actual site is 46.9℃, while the simulation prediction is 48.4℃. The 3.3% difference suggests that the simulation procedure is sufficient to investigate the other cases. Solar PV is paired with the fins air cooling system, stimulating the PV/T with only a 2.7% difference between the actual measurements and the simulation prediction. The bare panel simulation results predicted the backside temperature to be 13.4℃ above the ambient temperature. The 45° and 90° oriented fins reduced the backside temperature to 4.2℃ and 9.54℃ above the ambient temperature. In contrast, the 135° oriented fins have a negative cooling effect, as they increased the backside temperature to 19.05℃ above the ambient temperature. The analysis suggests that the low-performing cooling in the physical system is due to the bad thermal contact between the array base plate and the panel's backside.

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“…A new cooling approach using a backside water chamber was investigated experimentally and numerically as reported by Reda et al [26], Al-Kayiem and Reda [27], and Reda et al [28]. They circulated the cooling water through a ground heat exchanger.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of PV Panel Performance Using Backside Water Cooling Chamber

Rasool,

Abdullah

2023

IJEPM

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Due to high solar irradiation and the high ambient temperature in Iraq, the solar cell temperature rises, and the electrical power output drops accordingly. In this study, an experimental photovoltaic (PV) panel prototype was developed to study the PV module's performance and power production efficiency. The developed photovoltaic module uses a water-cooling chamber for cooling. This experimental study uses a water-cooling system chamber technique at the rear side of the PV panel. The cooling system solar panel is a closed cycle, and the cooling water contacts the panel directly through the rear side of the PV panel using different flow rates. The results showed that the electrical efficiency increased by 10.42%, 11.87%, 13.77%, 18.1%, and 19.72% when mass flow rates of 1.5, 2, 2.5, 3, and 3.5 l/min, respectively, were used. The thermal efficiency at 1.5 and 3.5 l/min is 49.7% and 79.2%, respectively.

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Analysis of Ground Thermal Control Systems for Solar Photovoltaic Performance Enhancement

Cited by 7 publications

References 14 publications

Investigation of Spirals Rectangular and Rectangular Tubes Collector Design in Photovoltaic Solar Cell Cooling Systems

Investigation of Spirals Rectangular and Rectangular Tubes Collector Design in Photovoltaic Solar Cell Cooling Systems

Effectiveness of PV/T Passive Natural Air Cooling by Backside Attached Fins

Experimental Study of PV Panel Performance Using Backside Water Cooling Chamber

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