The degradation performance of solar photovoltaic (SPV) panels, is a critical issue for its adoption. The current study introduces a novel dual-cooling technique to enhance the performance of the SPV panels under conditions of contamination from bird droppings. The front and backside temperatures, output power, and efficiency of the cooled SPV panels were evaluated and compared. Results showed that the cooling process reduced the front and backside temperatures by 24-47% and 34-48% respectively, compared to contaminated SPV panels. The cooled SPV module exhibited an output current increase of 8-9% and an output voltage increase of 7-9% compared to both contaminated and controlled modules. Consequently, output power for the cooled SPV module increased by 12-33% and 7-12% compared to bird droppings and controlled modules, respectively. Moreover, the overall efficiency of the SPV module dropped to 15% in the presence of bird droppings, compared to 20% with the cooling process was applied. These findings suggest significant potential benefits for large-scale SPV installations, enhancing performance and efficiency.
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http://dx.doi.org/10.1038/s41598-024-84932-w | DOI Listing |
Sci Rep
March 2025
College of Agricultural Engineering, Al-Azhar University, Cairo, 11768, Egypt.
The degradation performance of solar photovoltaic (SPV) panels, is a critical issue for its adoption. The current study introduces a novel dual-cooling technique to enhance the performance of the SPV panels under conditions of contamination from bird droppings. The front and backside temperatures, output power, and efficiency of the cooled SPV panels were evaluated and compared.
View Article and Find Full Text PDFSci Rep
February 2024
Faculty of Electrical and Computer Engineering, Bahir Dar Institute of Technology, Bahir Dar University, Bahir Dar, Ethiopia.
A new fifteen-level stepped DC to AC hybrid converter is proposed for Solar Photovoltaic (SPV) applications. A boost chopper circuit is designed and interfaced with the fifteen-level hybrid converters specific to Electric Vehicles' Brushless DC Motor (BLDC) drive systems. In chopper units, the output of solar panels is regulated and stepped up to obtain the nominal output voltage.
View Article and Find Full Text PDFExp Hematol Oncol
January 2024
ERC Chromatin Remodeling, DNA Repair and Epigenetics Laboratory, INSERM U981, Gustave Roussy, Villejuif, France.
Biliary tract cancers (BTCs) are heterogeneous malignancies with dismal prognosis due to tumor aggressiveness and poor response to limited current therapeutic options. Tumor exome profiling has allowed to successfully establish targeted therapeutic strategies in the clinical management of cholangiocarcinoma (CCA). Still, whether liquid biopsy profiling could inform on BTC biology and patient management is unknown.
View Article and Find Full Text PDFJ Immunother Cancer
March 2023
The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
Sci Rep
December 2022
Control & Instrumentation Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Kingdom of Saudi Arabia.
The use of a maximum power point (MPP) tracking (MPPT) controller is required for photovoltaic (PV) systems to extract maximum power from PV panels. However, under partial shading conditions, the PV cells/panels do not receive uniform insolation due to several power maxima appear on the PV array's P-V characteristic, a global MPP (GMPP) and two or more local MPPs (LMPPs). In this scenerio, conventional MPPT methods, including pertub and observe (P&O) and incremental conductance (INC), fail to differentiate between a GMPP and a LMPP, as they converge on the MPP that makes contact first, which in most cases is one of the LMPPs.
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