IMPACT OF PARTIAL SHADING GEOMETRY ON THE ENERGY AND EXERGY PERFORMANCE OF PV MODULES

Year 2025, Volume: 13 Issue: 1, 321 - 335, 01.03.2025

Saleh Musaed Saleh Alnakhlani , Selcuk Selimli

https://doi.org/10.36306/konjes.1573123

Abstract

In this experimental study, the impact of the geometric shape of partial shading on the energy and exergy performance of photovoltaic (PV) modules was evaluated using quadrant, triangular, and rectangular shaped shaders located on PV₁, PV₂, and PV₃ modules. The change in power output as well as the first and second efficiency of the PV modules was examined. In addition, fluctuations in the cost of exergy destruction (COEx) and the sustainability index (SI) were also observed. As a result, while the first law efficiencies of the PV₁, PV₂, and PV₃ modules were determined to be 5.33%, 6.85%, and 4.97%, respectively, the second law efficiencies were calculated as 2.06%, 3.99%, and 1.38%, respectively. The decrease rate of the first law efficiencies of the PV₁, PV₂, and PV₃ modules compared to the PV module was 6.86%, 5.34%, and 7.22%, respectively. Likewise, the decline in the second law efficiencies of the PV₁, PV₂, and PV₃ modules was 8.36%, 6.43%, and 9.04%, respectively. The COEx for them was $29.89/year, $29.34/year, and $30.11/year, respectively, while for the PV module it was $29.01/year. The SI of the PV₁, PV₂, and PV₃ modules is 8.92%, 7.14%, and 9.82% lower than that of the PV module.

Keywords

Energy, Exergy, First And Second Law Efficiency, Partial Shader Geometry, SI

Ethical Statement

The authors gratefully acknowledge that this article is derived from the MSc thesis titled “Experimental Investigation of the Effect of Shading Geometry on the Energy Performance of a PV Module,” completed by Saleh Musaed Saleh ALNAKHLANI with the scholarship of the Türkiye Scholarships and the Islamic Development Bank ISDB-YTB Joint Scholarship Program (Application No. 21YE031292, 2021).

Supporting Institution

Türkiye Scholarships and the Islamic Development Bank ISDB-YTB Joint Scholarship Program

Project Number

21YE031292

Thanks

The authors gratefully acknowledge that this article is derived from the MSc thesis titled “Experimental Investigation of the Effect of Shading Geometry on the Energy Performance of a PV Module,” completed by Saleh Musaed Saleh ALNAKHLANI with the scholarship of the Türkiye Scholarships and the Islamic Development Bank ISDB-YTB Joint Scholarship Program (Application No. 21YE031292, 2021).

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