Experimental Determination of the Effect of Fins of Different Cylindrical Geometries on Electrical and Thermal Efficiency in an Air-Cooled PVT System

DEMİR, Musa; Ömeroğlu, Gökhan; Özakın, Ahmet Numan

doi:10.1615/heattransres.2022044259

Cited by 7 publications

(2 citation statements)

References 32 publications

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“…A metal plate that both absorbs and disperses heat is called a heat sink. Heat sinks can be used in conjunction with forced or natural convection [29]. PV array heat is dispersed using fins on a heat sink [7].…”

Section: Heat Sinkmentioning

confidence: 99%

The State of the Art of Photovoltaic Module Cooling Techniques and Performance Assessment Methods

Harmailil,

Sultan,

Tso

et al. 2024

Symmetry

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Due to its widespread availability and inexpensive cost of energy conversion, solar power has become a popular option among renewable energy sources. Among the most complete methods of utilizing copious solar energy is the use of photovoltaic (PV) systems. However, one major obstacle to obtaining the optimal performance of PV technology is the need to maintain ideal operating temperature. Maintaining constant surface temperatures is critical to PV systems’ efficacy. This review looks at the latest developments in PV cooling technologies, including passive, active, and combined cooling methods, and methods for their assessment. As advances in research and innovation progress within this domain, it will be crucial to tackle hurdles like affordability, maintenance demands, and performance in extreme conditions, to enhance the efficiency and widespread use of PV cooling methods. In essence, PV cooling stands as a vital element in the ongoing shift towards sustainable and renewable energy sources.

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Section: Heat Sinkmentioning

confidence: 99%

The State of the Art of Photovoltaic Module Cooling Techniques and Performance Assessment Methods

Harmailil,

Sultan,

Tso

et al. 2024

Symmetry

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“…Used fins having different surface areas were absorbed the excess heat from the PV cells and prevented their electrical efficiency reduction by less than 7%. The thermal energy loss prevented by control volume and the air speed was between 630-304 W [14]. Another technique represents by integrating the desiccants material on the backside of the PV module; at night, when the temperature decreases, desiccants work to adsorb water from the air when the relative humidity is high.…”

Section: Introductionmentioning

confidence: 99%

Experimental comparative study on using different cooling techniques with photovoltaic modules

Alktranee

Bencs

2023

J Therm Anal Calorim

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Overcoming the issue of photovoltaic (PV) module productivity at high temperatures is one of the most critical obstacles facing its use. PV cells are made of silicon, which loses its properties at high temperatures, degrading the PV module work. The present research compares cotton wicks integrated with rectangular aluminium fins (CWIRAFs) submerged in water as passive cooling with an absorbing plate and copper pipes attached at the PV module backside as active cooling. Compared with the PV module without cooling, CWIRAFs have better performance with the PV module than active cooling owing to evaporative cooling and increased heat dissipation area represented by wet cotton bristles integrated. The PV module is exposed to significant performance degradation without cooling in hot climate conditions. As a result, using CWIRAFs with the PV module had reduced the temperature by 31.4%, increased the power by up to 66.6%, and increased the electrical efficiency from 3.12 to 8.6%. Active cooling methods have reduced the PV temperature by 20.8%, increased the power by 56.7%, and enhanced electrical efficiency by 7.9%. Removing excess heat from the backside of the PV module via circulating water has improved the thermal efficiency and overall efficiency of the PVT system by about 26.3 and 34.2%, respectively.

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A Computational Analysis of Air‐Cooled Heat Sinks Designs for PV Solar Panel Cooling With Different Fin Numbers

Hasan,

Abdullah,

Sazid

2024

Heat Trans

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The efficiency of photovoltaic (PV) solar panels is highly sensitive to operating temperatures, with increased temperatures leading to a significant decline in electrical output and overall performance. Despite extensive research into thermal management solutions for PV panels, there remains a gap in optimizing passive cooling systems, particularly air‐cooled heat sinks, to achieve effective heat dissipation. This study addresses the challenge by conducting a detailed computational analysis of air‐cooled heat sinks with varying fin configurations to enhance the thermal regulation of PV panels. Using computational fluid dynamics simulations, this work evaluates the influence of fin number and spacing on airflow dynamics and heat dissipation efficiency. Key findings from ANSYS Postprocessor simulations indicate that heat sinks with a higher number of fins improve heat dissipation, with the 11‐fin configuration demonstrating the highest temperature drop of 38.44 K. Comparatively, the base model (nine fins, 0.05 m fin spacing) exhibited a maximum temperature of 331.46 K and a mean velocity of 1.58 m/s. A parametric study of finless designs showed a lower mean temperature of 321.28 K, but with significantly reduced airflow velocity. Intermediate designs, such as the six‐fin and seven‐fin heat sinks, also demonstrated improved thermal performance over the finless model but were outperformed by the 11‐fin configuration. This study contributes to the ongoing efforts to optimize passive cooling for PV solar panels by demonstrating the critical impact of fin number on heat sink effectiveness. The findings offer valuable insights into the design of more efficient cooling mechanisms, potentially enhancing both the performance and longevity of PV systems.

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Experimental Determination of the Effect of Fins of Different Cylindrical Geometries on Electrical and Thermal Efficiency in an Air-Cooled PVT System

Cited by 7 publications

References 32 publications

The State of the Art of Photovoltaic Module Cooling Techniques and Performance Assessment Methods

The State of the Art of Photovoltaic Module Cooling Techniques and Performance Assessment Methods

Experimental comparative study on using different cooling techniques with photovoltaic modules

A Computational Analysis of Air‐Cooled Heat Sinks Designs for PV Solar Panel Cooling With Different Fin Numbers

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