Electrical and thermal performances of photovoltaic/thermal systems with magnetic nanofluids: A review

Nkurikiyimfura, Innocent; Wang, Yanmin; Safari, Bonfils; Nshingabigwi, Emmanuel

doi:10.1016/j.partic.2020.04.004

Cited by 29 publications

(9 citation statements)

References 154 publications

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“…The thermal conductivity of the nanofluid is significantly influenced by the nanoparticle volume fraction and hence it is important to study the thermophysical properties with relation to the volume fraction 15 . Many types of nanofluids and their effect on the electrical and thermal performances of flat‐plate collectors and PV/T systems have been studied in the literature 16‐18 …”

Section: Introductionmentioning

confidence: 99%

Investigation of a nanofluid‐based photovoltaic thermal system usingsingle‐wallcarbon nanotubes: An experimental study

et al. 2021

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Summary The temperature of photovoltaic cell is reduced by heat transfer fluids (HTF) in cooling channels, which are attached to the back of the photovoltaic module in a hybrid thermal photovoltaic system (PV/T). Recently, nanofluids have been implemented as HTF's in PV/T systems. Various types of nanofluids have been synthesized, prepared, and tested, however, not a specific type in particular. In this paper, experiments were carried out using Single‐walled carbon nanotubes (SWCNTs) nanofluids. The proposed nanofluid consisted of a primary fluid that is water with a volume ratio of 75.0% and glycol Ethylene with a volume ratio of 25% and a surfactant, Cetyltrimethylammonium Bromide(CTAB), in an amount of 0.5 mL. Single‐walled carbon nanotubes (SWCNTs) were added in four weight ratios of 0.1%, 0.5%, 1.0%, and 2.0%. The samples were examined and compared based on their thermophysical properties, and from these properties, a volume fraction of 0.5% SWCNT was chosen to form the nanofluid. In this study, the performance characteristics of the PV/T were investigated. The results of the study showed that the proposed nanofluid caused an increase in the electrical power generated by 11.7% while the electrical efficiency of PV/T was increased up to 25.2% compared to the PV system. It is found that the cell temperature reduced by 18% on average for a whole day operation. The studied PV/T system produced an impressive overall efficiency of 71% compared to the PV system, which generated no more than 11%. SWCNTs have shown superior results in improving the performance of the studied PV/T system compared to other types of nanofluids used in PV/T systems in the literature.

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Section: Introductionmentioning

confidence: 99%

Investigation of a nanofluid‐based photovoltaic thermal system usingsingle‐wallcarbon nanotubes: An experimental study

et al. 2021

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“…The more water content, the lower the refractive index. This is due to the nature of water which is easy to refract the incident light Dewi et al (2017) , Nkurikiyimfura et al (2020). Thus the use of solar cells in the essential oil refining process is effectively used because in addition to saving energy usage, it can also shorten the distillation time to be more efficient with good product results.…”

Section: Refractive Index Analysismentioning

confidence: 99%

Optimization the Perfomance of Photovoltaic Panels for Citronella Oil Distillation

Safitri¹,

Suprihardi²,

Ridwan³

et al. 2022

Int. J. Res. Granthaalayah

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Photovoltaic system is a module that is used to absorb heat that is exposed to sunlight which is converted into electrical energy. The purpose of this research is to use a solar panel with a capacity of 100 wp to absorb heat which is converted into electrical energy as much as 100 watts/hour which is later expected to be a substitute for conventional electricity which will be used for the refining process. The treatment was carried out by varying the drying time of citronella leaves 0, 1, 2 and 3 days and the time for citronella oil distillation operation for 1.5, 3, 4.5 and 6 hours. By using a solar cell that has a capacity of 100 wp for 6 hours a day when exposed to sunlight it can produce power of 600 watts / day. Testing of distilled citronella oil using the photovoltaic method, the best density was obtained at a distillation time of 1.5 hours with a drying time of 1 day of 0.8889 kg/cm3. Refractive index testing, drying time of 1 day with a distillation time of 1.5 hours the value obtained is 1.4655. The more the chain components with the oxygen group are also distilled, the density of the oil will increase so that the incoming light is more difficult to refract. The yield of lemongrass oil at a drying time of 3 days with a distillation time of 6 hours the value obtained was 2.30%. Drying and withering the amount of material that can be distilled per distillation increases, so that the refining of the material in a dry state is more efficient. The best distillation time is 6 hours, this occurs due to the longer a material receives heat, the more evenly distributed the diffusion process causes the distillation process to be more efficient and greatly affects the yield and oil yield.

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“…The researchers studied the effect of the proposed fluid numerically on the thermal and electrical properties of the system. Many studies investigated the addition of different nanoparticles that have metallic and non-metallic sources to form efficient cooling fluids [14][15][16]. Also, many studies focused on the type of base fluid and its effect on heat transfer in nanofluids [17][18][19].…”

Section: -Introductionmentioning

confidence: 99%

Photovoltaic Module Electrical Efficiency Enhancement Using Nano Fluids and Nano-Paraffin

Chaichan

Zaidi²,

Kazem

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Today, photovoltaic modules have become accepted by the public and scientists in the production of clean electricity and as a possible alternative to electricity produced from fossil fuels. These modules suffer from a deterioration in their electrical efficiency as a result of their high temperature. Several researchers have proposed the use of high-efficiency hybrid photovoltaic (PV/T) systems that can cool PV modules and also produce hot water. Improving the PV modules’ electrical efficiency increases the investment attraction and commercialization of this technology. The possibility of restoring the electrical efficiency of the photovoltaic panel that was lost due to its high temperature was investigated in this study. A PV/T system designed to operate with a paraffin-filled thermal tank attached to the PV module was used. Inside the paraffin is a heat exchanger that circulates inside a nanofluid. This design is adopted to cool down the PV module temperature. The study was carried out in the climatic conditions of the month of May in the city of Baghdad - Iraq. The proposed PV/T system’s electrical efficiency was compared with similar systems from the literature. The proposed system has achieved an obvious enhancement as its electrical efficiency was 13.7%.

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Electrical and thermal performances of photovoltaic/thermal systems with magnetic nanofluids: A review

Cited by 29 publications

References 154 publications

Investigation of a nanofluid‐based photovoltaic thermal system usingsingle‐wallcarbon nanotubes: An experimental study

Investigation of a nanofluid‐based photovoltaic thermal system usingsingle‐wallcarbon nanotubes: An experimental study

Optimization the Perfomance of Photovoltaic Panels for Citronella Oil Distillation

Photovoltaic Module Electrical Efficiency Enhancement Using Nano Fluids and Nano-Paraffin

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