Experimental investigation of cooling photovoltaic (PV) panels using (TiO 2 ) nanofluid in water -polyethylene glycol mixture and (Al 2 O 3 ) nanofluid in water- cetyltrimethylammonium bromide mixture

Ebaid, Munzer S. Y.; Ghrair, Ayoup M.; Al‐busoul, Mamdoh

doi:10.1016/j.enconman.2017.10.074

Cited by 154 publications

(31 citation statements)

References 69 publications

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“…The nanofluids were sonicated for 1 hour using an aggressive ultrasonic processor (UP400S; Hielscher, Germany) at 100% amplitude and 0.5 cycles for breaking clusters among particles to avoid agglomeration. Moreover, an ice jacket was used to prevent the increase of nanofluid temperature, following the study of Ebaid at al 31 …”

Section: Preparation Of (Tio2 and Al2o3) Nanofluidsmentioning

confidence: 99%

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Performance enhancement of photovoltaic panels using two types of nanofluids

2020

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One of the main problems that limit the extensive use of photovoltaic (PV) systems is the increase in the temperature of PV panels. Overheating of a PV module decreases the performance of the output power by 0.4% to 0.5% per 1°C over its rated temperature that in most cases is 25°C. An effective way of improving electrical performance (power output and efficiency) and reducing the rate of thermal degradation of a PV module is to reduce the operating temperature of the PV surface by a cooling medium. To achieve this, nanofluids can be considered as a potentially effective solution for cooling. In this study, two types of nanofluids, namely Al2O3 and TiO2 water‐based mixture of different volume flow rates and concentrations (0.01%, 0.05%, and 0.1%) by weight, were used. Also, three PV panels were cooled simultaneously using nanofluids, water, and natural air, respectively. Results showed that nanofluids for cooling enhanced heat transfer rate much better than water and natural air. Best results were achieved for TiO2 nanofluids at the considered concentration (0.1 wt%). Nanofluid cooling of turbulent flows for such an application has not been investigated before. These results represent the first application of nanofluid cooling in the turbulent flow regimes and in outdoor conditions including real solar irradiation.

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Section: Preparation Of (Tio2 and Al2o3) Nanofluidsmentioning

confidence: 99%

“…The dynamic and kinematic viscosity of nanofluid given by Ebaid et al 31 can be computed using the following equations:

μ_{n f} = (1 + 2.5 ϕ) \times μ_{b f},

ν_{n f} = \frac{μ_{n f}}{ρ_{n f}} .

…”

Section: Theory Of Workmentioning

confidence: 99%

Performance enhancement of photovoltaic panels using two types of nanofluids

2020

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“…In addition, among the considered parameters in the study (absorbed solar radiation, wind speed, ambient temperature, coolant inlet temperature, coolant mass flow rate, and nanoparticles mass fraction), the coolant inlet temperature was the most effective parameter on the system efficiency, while for the electrical efficiency the considered parameters have a slight effect. Ebaid et al [13], in their experimental study, used TiO 2 / water-cetyltrimethylammonium bromide mixture and Al 2 O 3 / water-polyethylene glycol mixture with the concentrations of 0.01, 0.05, 0.1 wt% at 500-5000 mL/min flow rates. The results indicated that Al 2 O 3 nanofluid showed better performance than TiO 2 nanofluid and water.…”

Section: Introductionmentioning

confidence: 99%

Experimental study about utilization of MWCNTs and graphene nanoplatelets water-based nanofluids in flat non-concentrating PVT systems

2021

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Although the increment the performance of PVT systems by using the nanofluids as working fluids have gained the attention of researchers during the last two decades, there is still, a lack in the literature study associated to this application. This study contributes to the investigations and researches of applying the nanofluids to increase the performance of PVT collectors. A flat non-concentrating PVT collector has been designed, constructed and outdoor tested in Karabuk University, Turkey. The considered working fluids in this study are MWCNTs (multiwall carbon nanotubes), and graphene nanoplatelets dispersed in water as a base fluid with a concentration of 0.5 wt%. The experiments were run with a volume flow rate of 0.5 L/min for the aforementioned nanofluids and distilled water (as a reference fluid). The study results have shown and revealed that the MWCNT-water nanofluid presented a better performance in terms of electrical energetic efficiency compared to graphene nanoplateletswater nanofluid and distilled water, while graphene nanoplateletswater nanofluid revealed the highest thermal energetic efficiency. Moreover adding thermal unit to PV module enhanced the total energetic efficiency by 53.4% for distilled water, 57.2% for MWCNTwater, and 63.1% for graphene-water.

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“…3 Employing the PV module to produce electricity was successful for decades. 11 From the above regard, Abdallah et al (2018) used the nanofluid Al 2 O 3 at different concentration ratio. The absorption of heat leads to poor electrical efficiency due to the increase of cell temperature.…”

Section: Introductionmentioning

confidence: 99%

“…A series of tests was carried out at outdoor conditions. 11 From the above regard, Abdallah et al (2018) used the nanofluid Al 2 O 3 at different concentration ratio. Employing Al 2 O 3 in PV module improved the overall efficiency by 70%.…”

Section: Introductionmentioning

confidence: 99%

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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Experimental investigation of cooling photovoltaic (PV) panels using (TiO 2 ) nanofluid in water -polyethylene glycol mixture and (Al 2 O 3 ) nanofluid in water- cetyltrimethylammonium bromide mixture

Cited by 154 publications

References 69 publications

Performance enhancement of photovoltaic panels using two types of nanofluids

Performance enhancement of photovoltaic panels using two types of nanofluids

Experimental study about utilization of MWCNTs and graphene nanoplatelets water-based nanofluids in flat non-concentrating PVT systems

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

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