Thermodynamic study of improved cooling in solar photovoltaic cells using nanofluids with graphite-doped titanium dioxide and aluminum oxide
Maximizing energy collection and optimizing the performance of solar photovoltaic cells (SPVCs) is essential for the day. In this context, using nanofluids of graphite-dopped titanium dioxide (G-TiO2) and aluminum oxide (G-Al2O3) in SPVC systems plays a crucial role in preventing PV panel overheatin...
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Elsevier
2025-05-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X25002291 |
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| author | N. Sathiesh Kumar Debabrata Barik Kapura Tudu Seepana Praveenkumar Milon Selvam Dennison Talib K. Ibrahim |
| author_facet | N. Sathiesh Kumar Debabrata Barik Kapura Tudu Seepana Praveenkumar Milon Selvam Dennison Talib K. Ibrahim |
| author_sort | N. Sathiesh Kumar |
| collection | DOAJ |
| description | Maximizing energy collection and optimizing the performance of solar photovoltaic cells (SPVCs) is essential for the day. In this context, using nanofluids of graphite-dopped titanium dioxide (G-TiO2) and aluminum oxide (G-Al2O3) in SPVC systems plays a crucial role in preventing PV panel overheating, thereby enhancing electrical efficiency and the panel's life span. For this purpose, the ultrasonication technique was used to dope graphite with TiO2 and Al2O3 and mixed with deionized water (DI-H2O) at concentrations of 0.5, 0.6, 0.7, and 0.8 % by vol. The results indicated that G-Al2O3 seems to give optimum results compared to G-TiO2. With G-Al2O3 the electrical and thermal efficiencies were increased to 16.2 % and 27.2 %, this is about 5.1 % and 6.3 % higher than the DI-H2O. With nanoparticle volume concentration of 0.7 %, G-Al2O3 causes a 3 % higher pressure drop, 3.6 % higher in friction factor, 8.6 % higher in Nu, and 9.5 % higher in temperature gradient (ΔT/Δx) in comparison to G-TiO2 at 14 h respectively. Hence it can be recommended that, with an increase in pump efficiency or by the use of a variable-speed pump, the extra resistance can be compensated for without excessive energy consumption. |
| format | Article |
| id | doaj-art-d762125032174fca87e933e8e5e4bc7d |
| institution | OA Journals |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-d762125032174fca87e933e8e5e4bc7d2025-08-20T02:17:28ZengElsevierCase Studies in Thermal Engineering2214-157X2025-05-016910596910.1016/j.csite.2025.105969Thermodynamic study of improved cooling in solar photovoltaic cells using nanofluids with graphite-doped titanium dioxide and aluminum oxideN. Sathiesh Kumar0Debabrata Barik1Kapura Tudu2Seepana Praveenkumar3Milon Selvam Dennison4Talib K. Ibrahim5Department of Mechanical Engineering, Karpagam Academy of Higher Education, Coimbatore, India, 641021Department of Mechanical Engineering, Karpagam Academy of Higher Education, Coimbatore, India, 641021; Centre for Energy and Environment, Karpagam Academy of Higher Education, Coimbatore, India, 641021; Corresponding author. Department of Mechanical Engineering, Karpagam Academy of Higher Education, Coimbatore, India, 641021.Department of Mechanical Engineering, School of Mechanical Sciences, Odisha University of Technology and Research, Bhubaneswar, India, 751029Department of Nuclear and Renewable Energy, Ural Federal University, Ekaterinburg, Russia, 620002Department of Mechanical Engineering, Kampala International University, Western Campus, Kampala, 20000, Uganda; Corresponding author.Department of Petroleum Engineering, College of Engineering, Knowledge University, Erbil, 44001, Iraq; Department of Petroleum Engineering, Al-Kitab University, Altun Kupri 44022, IraqMaximizing energy collection and optimizing the performance of solar photovoltaic cells (SPVCs) is essential for the day. In this context, using nanofluids of graphite-dopped titanium dioxide (G-TiO2) and aluminum oxide (G-Al2O3) in SPVC systems plays a crucial role in preventing PV panel overheating, thereby enhancing electrical efficiency and the panel's life span. For this purpose, the ultrasonication technique was used to dope graphite with TiO2 and Al2O3 and mixed with deionized water (DI-H2O) at concentrations of 0.5, 0.6, 0.7, and 0.8 % by vol. The results indicated that G-Al2O3 seems to give optimum results compared to G-TiO2. With G-Al2O3 the electrical and thermal efficiencies were increased to 16.2 % and 27.2 %, this is about 5.1 % and 6.3 % higher than the DI-H2O. With nanoparticle volume concentration of 0.7 %, G-Al2O3 causes a 3 % higher pressure drop, 3.6 % higher in friction factor, 8.6 % higher in Nu, and 9.5 % higher in temperature gradient (ΔT/Δx) in comparison to G-TiO2 at 14 h respectively. Hence it can be recommended that, with an increase in pump efficiency or by the use of a variable-speed pump, the extra resistance can be compensated for without excessive energy consumption.http://www.sciencedirect.com/science/article/pii/S2214157X25002291Heat transfer efficiencyNanofluid coolingGraphite-dopped titanium dioxideGraphite-dopped Al2O3Electrical efficiency |
| spellingShingle | N. Sathiesh Kumar Debabrata Barik Kapura Tudu Seepana Praveenkumar Milon Selvam Dennison Talib K. Ibrahim Thermodynamic study of improved cooling in solar photovoltaic cells using nanofluids with graphite-doped titanium dioxide and aluminum oxide Case Studies in Thermal Engineering Heat transfer efficiency Nanofluid cooling Graphite-dopped titanium dioxide Graphite-dopped Al2O3 Electrical efficiency |
| title | Thermodynamic study of improved cooling in solar photovoltaic cells using nanofluids with graphite-doped titanium dioxide and aluminum oxide |
| title_full | Thermodynamic study of improved cooling in solar photovoltaic cells using nanofluids with graphite-doped titanium dioxide and aluminum oxide |
| title_fullStr | Thermodynamic study of improved cooling in solar photovoltaic cells using nanofluids with graphite-doped titanium dioxide and aluminum oxide |
| title_full_unstemmed | Thermodynamic study of improved cooling in solar photovoltaic cells using nanofluids with graphite-doped titanium dioxide and aluminum oxide |
| title_short | Thermodynamic study of improved cooling in solar photovoltaic cells using nanofluids with graphite-doped titanium dioxide and aluminum oxide |
| title_sort | thermodynamic study of improved cooling in solar photovoltaic cells using nanofluids with graphite doped titanium dioxide and aluminum oxide |
| topic | Heat transfer efficiency Nanofluid cooling Graphite-dopped titanium dioxide Graphite-dopped Al2O3 Electrical efficiency |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X25002291 |
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