Experimental investigation on the effect of using nano fluid (Al2O3-Water) on the performance of PV/T system

Abdallah, Saber Ragab; Elsemary, Ismail M.M.; Altohamy, Ahmed A.; Abdelrahman, M.A.; Attia, Ahmed A.A.; Abdellatif, Osama E.

doi:10.1016/j.tsep.2018.04.016

Cited by 60 publications

(31 citation statements)

References 20 publications

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“…Among all nanofluids, MWCNT recorded a noteworthy increment in the power system rather than other fluids. 12,13 The efficiency of the system powered by MWCNT is plotted in the Figure 8. Similar trend was recently explained by Nasrin et al 22 The electrical output increases to peak from 12.30 PM to 1.00 PM and then starts to lose its heat and there is obvious drop in electrical output.…”

Section: Electrical Outputmentioning

confidence: 99%

“…The equation for estimating the temperature is listed below. The temperature of the PV (T PV ) module 12 can be written as T PV ¼ 0:369xI 0:0726 xVw −0:10877 xTa 1:3588 (13) where V W is the wind speed (m/s). Figure 5 shows the PV module temperature for all tested specimens.…”

Section: Pv Module Temperaturementioning

confidence: 99%

“…On the other hand, all nanofluids reported better electrical efficiency throughout the day compared with conventional PV and water based PV. 12,13 The efficiency of the system powered by MWCNT is plotted in the Figure 8. Compared with other nanofluid, MWCNT showed a maximum efficiency of 75% and other nanoparticles such as CuO and Al 2 O 3 showed a peak efficiency of 69% and 65%.…”

Section: Electrical Outputmentioning

confidence: 99%

“…Meanwhile, only 5 to 25% have converted as electrical output and remaining is wasted by absorption and reflection. 12 Manigandan and Kumar, 13 made the comparative analysis of the PV/T system with CuO and ZnO. Hence, PV is replaced by PV/T (photovoltaic thermal system) to utilize the maximum heat energy emitted during the conversion process.…”

Section: Introductionmentioning

confidence: 99%

“…Employing Al 2 O 3 in PV module improved the overall efficiency by 70%. 12 Manigandan and Kumar, 13 made the comparative analysis of the PV/T system with CuO and ZnO. The CuO performed in both thermal and electrical efficiency in all conditions.…”

Section: Introductionmentioning

confidence: 99%

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Progress of MWCNT, Al ₂ O ₃ , and CuO with water in enhancing the photovoltaic thermal system

et al. 2019

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Hybrid photovoltaic thermal system is an effective method to convert solar energy into electrical and thermal energy. However, its effectiveness is widely affected due to the high temperature of photovoltaic panel, and it can be minimized by employing nanofluids to the PV/T systems. In this research, the effect of various nanoparticles on the PV/T systems was studied experimentally. The nanofluids Al 2 O 3 , CuO, and multiwall carbon nanotube (MWCNT) were dispersed with water at different volume fractions of 0, 0.5, 1, 2.5, and 5 (vol%) using ultrasonication process. The effect of nanomaterials on viscosity and density was classified. All tests were carried out in an outdoor laboratory setup for calibrating the PV temperatures, thermal conductivity, electrical power, electrical efficiency, and overall efficiency. In addition, the energy analyses were also made to estimate the loss of heat owing to the nanofluids. Results show that use of the nanofluid increased the electric power and electrical efficiency of PV/T compared with water. Furthermore, MWCNT and CuO reduced the cell temperature by 19%. Consequently, the nanofluids MWCNT, Al 2 O 3 , and CuO produced the impressive values of 60%, 55%, and 52% increase in an average electrical efficiency than conventional PV. Particularly, the MWCNT produced superior results compared with other materials. It is evidently clear from the result that the introduction of the nanofluid increases the thermal efficiency without adding any extra energy to the system. Moreover, insertion of Al 2 O 3 , CuO, and MWCNT on PV/T system increases the exergy efficiency more than conventional PV module.How to cite this article: Sangeetha M, Manigandan S, Chaichan MT, Kumar V. Progress of MWCNT, Al 2 O 3 , and CuO with water in enhancing the photovoltaic thermal system. Int J Energy Res.

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Section: Electrical Outputmentioning

confidence: 99%

Section: Pv Module Temperaturementioning

confidence: 99%

Section: Electrical Outputmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Progress of MWCNT, Al ₂ O ₃ , and CuO with water in enhancing the photovoltaic thermal system

et al. 2019

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Emerging Trends on the Implementation of Nanomaterials for Improving the Performance of Photovoltaic Thermal Systems: Energetic, Exergetic, Environmental, and Economic Perspectives

Tyagi

Kumar

2021

Energy Tech

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This study presents an updated and constructive review that explores the impact of nanomaterials on the photovoltaic thermal (PVT) system performance from energy, exergy, environmental, and economic perspectives. The study employs the various PVT configurations using water, ethylene glycol, nanofluid, phase change material, and nanoenhanced phase change material, as well as a combination of these cooling media at different loadings, to overcome the increased photovoltaic (PV) module temperature levels in the presence of nanomaterials and improve both the cooling and thermal regulation of the PVT systems. The average PV module temperature, temperature gain across the working fluid, thermal, electrical, and overall energetic and exergetic efficiencies, exergy loss, payback period, cost of energy, and CO2 mitigation/year are some of the primary metrics used to evaluate the performance of PVT systems. The study concludes that the use of nanomaterial in PVT systems enhances the energetic and exergetic performance and these systems are effective in decreasing the entropy generation and exergy loss because of their improved heat transfer. The present study also concludes that payback time and cost of energy for the nanomaterial‐based PVT system are lower than that of conventional systems and these systems prevent greenhouse gases emissions in the ecosystem.

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Performance enhancement of photovoltaic modules by nanofluid cooling: A comprehensive review

2020

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Summary Only 15‐20% of solar radiation incident on the photovoltaic (PV) cells is utilized which further reduces due to the rise in the temperature of the PV module and it also degrades the lifespan of the PV module. Therefore, numerous attempts were made to reduce this rising temperature of the PV module and different cooling techniques were employed. Nanofluid cooling is one of the potential cooling techniques for lowering the temperature of the PV module and augmenting the heat transfer by increasing the thermal conductivity of the nanofluid relative to the base fluid (BF). The experimental and numerical studies related to the cooling of PV cells with nanofluids have been reviewed. It was found that the heat transfer from the back of the PV module is enhanced with the augmentation in the concentration of nanoparticle in BF; however, some studies also demonstrate that the enhancement in the heat transfer also depends upon other factors such as the geometry at the rear of the PV module, nanoparticle material, nanoparticle size, BF, ambient conditions, etc. This review article also demonstrates the various issues with nanofluids such as instability, technological difficulties, high system costs, and the impossibility of finding a viable operational design which creates a barrier in the commercialization of the nanofluid cooling technique for PV modules.

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Experimental investigation on the effect of using nano fluid (Al2O3-Water) on the performance of PV/T system

Cited by 60 publications

References 20 publications

Progress of MWCNT, Al ₂ O ₃ , and CuO with water in enhancing the photovoltaic thermal system

Progress of MWCNT, Al ₂ O ₃ , and CuO with water in enhancing the photovoltaic thermal system

Emerging Trends on the Implementation of Nanomaterials for Improving the Performance of Photovoltaic Thermal Systems: Energetic, Exergetic, Environmental, and Economic Perspectives

Performance enhancement of photovoltaic modules by nanofluid cooling: A comprehensive review

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