Investigation of TiO<sub>2</sub> and MWCNT Nanofluids-based Photovoltaic-Thermal (PV/T) System

Rukman, Nurul Shahirah Binti; Fudholi, Ahmad; Razali, Nur Farhana Mohd; Ruslan, Mohd Hafidz; Sopian, Kamaruzzaman

doi:10.1088/1755-1315/268/1/012076

Cited by 13 publications

(4 citation statements)

References 15 publications

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“…Asadi et al [52], Almanassra et al [53], and Chen et al [54] all applied the two-step process in synthesizing MWCNTs-water nanofluids. This method has also been used for metal oxide nanofluids like CuO water nanofluid [55], Fe 2 O 3 water nanofluid [56], SiO 2 glycerol-water nanofluid [57] and have also been used in the synthesis of hybrid nanofluids [58][59][60].…”

Section: Nanofluid Synthesis Techniques and Stabilitymentioning

confidence: 99%

Nanofluids in Solar Thermal Collectors: Review and Limitations

et al. 2020

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Solar thermal collectors are systems that allow for the use of solar energy in thermal applications. These collectors utilize a heat transfer fluid to transport absorbed solar radiation to applications where they are needed. Scientists in a bid to improve the conversion efficiency of solar collectors have suggested different collector designs and improved collector materials. Over the last 25 years, the study of nanofluids and their applications have revolutionized material science, and nanotechnology has found applications in improving solar collector materials. This article reviews the impact of different nanomaterials on the efficiency of solar collectors. The study also outlines the limitations of applying nanofluids and discusses the long-term challenges of their application to solar collectors. Nanofluids have the potential to improve the overall efficiency of most solar collectors, however, the full potential of nanofluids in heat transfer applications cannot be completely achieved until some of the questions regarding hysteresis, stability, and the overall predictability of nanofluids are answered.

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Section: Nanofluid Synthesis Techniques and Stabilitymentioning

confidence: 99%

Nanofluids in Solar Thermal Collectors: Review and Limitations

et al. 2020

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“…Rukman et al 169 verified in practice the utility of nano-TiO 2 and MWCNT as heat transfer fluids. Results showed that when using 1% of nano-TiO 2 the degree of PV unit decreased to 1.80 C. Reference 170 provided by a review of practical and theoretical studies that examined the impact of the use of nanofluids on the performance of PV/Ts.…”

Section: Nanofluids and Nanoparticles In Pv/tmentioning

confidence: 99%

“…Rukman et al 169 verified in practice the utility of nano‐TiO 2 and MWCNT as heat transfer fluids. Results showed that when using 1% of nano‐TiO 2 the degree of PV unit decreased to 1.80°C.…”

Section: Application Of Fluids In Pv/tmentioning

confidence: 99%

A review of photovoltaic thermal systems: Achievements and applications

et al. 2020

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Summary The use of photovoltaics has spread widely, and government agencies have begun adopting plans to deploy plants with large capacities, due to their environmental friendliness, low manufacturing costs, and high productivity. In the sunny countries where this technology should spread, the photovoltaics' energy conversion efficiency decreases due to the high temperature of which the cell's operate at; because a large part of the solar radiation is absorbed by the solar panels as heat, while the smaller part converts it to electricity. From here, the benefit of the shift towards the PV/T technology that works to reduce the photovoltaic modules temperature and improve their electricity produced along with yielded thermal energy which can be utilized in other applications. In this study, a thorough review of many recent research and studies published in the field of PV/T has been carried out. The present study was divided into several sections to clarify and focus on the effect of each technology separately. Researchers used one or more fluids to cool the solar panels, and their research dealt with many of these fluids, starting with air, water, oil, etc. Other researchers have tended to increase the thermal conductivity of liquid cooling fluids by adding many types of nanoparticles with high thermal conductivity. Other researchers have used variable‐phase materials to take advantage of the large storage of the latent heat of these materials. Other researchers have studied improving heat transfer of PCMs by mixing it with nanomaterials with high thermal conductivity. Others have also combined nano‐PCMs and nanofluids together in one system, and they have demonstrated, in theory and practice, that this technique exhibits higher energy collection and utilization than the other types of PV/T. At the conclusion of the study, some critical points are identified that work is still limited and needs more research efforts and studies.

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“…At 900 W/m 2 irradiance, electrical efficiency increased by 6.95% and 7.32% at 0.5 wt.% and 1.0 wt.% titania nanoparticle concentration, respectively, as compared with the uncooled PV panel. In another study, Rukman et al [13] analyzed the performance of the PV/T system using MWCNT and TiO 2À based nanofluids. They concluded that the flow rate increment causes the module surface temperature to decrease, whereas the irradiation increase causes the temperature to increase, and the efficiency gets dropped.…”

Section: Thermal Management Of Photovoltaic Modulesmentioning

confidence: 99%

Titanium Dioxide: Advancements and Thermal Applications

Shah¹,

Zhou²,

Ali³

2022

Titanium Dioxide - Advances and Applications

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Distinctive characteristics of titanium dioxide such as high refractive index, overwhelmingly high melting and boiling point, high toughness, and hardness, photocatalytic nature, ability to absorb or reflect UV-rays, DeNox catalyst, nontoxicity, inert behavior, etc., have brought about the massive use of TiO2 in a variety of conventional as well as advanced engineering applications. Broad commercial utilization of titanium dioxide in products including paints, anti-air pollutants, cosmetics, skincare and sunblock, pharmaceuticals, surface protection, building energy-saving, etc., accounts for its multibillion dollars market worldwide. Titanium dioxide carries unique thermal and optical characteristics and therefore has gained significance as a potential candidate for advanced applications such as clean hydrogen fuel harvesting, photoelectric solar panels, photothermal conversion, treatment of exhaust gases from combustion engines and power plants, thermal energy storage, thermal management of electronic devices and photovoltaics, and nano-thermofluids. This chapter presents a brief insight into some of the noteworthy characteristics and a comprehensive overview of advanced thermal applications of TiO2.

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Investigation of TiO₂ and MWCNT Nanofluids-based Photovoltaic-Thermal (PV/T) System

Cited by 13 publications

References 15 publications

Nanofluids in Solar Thermal Collectors: Review and Limitations

Nanofluids in Solar Thermal Collectors: Review and Limitations

A review of photovoltaic thermal systems: Achievements and applications

Titanium Dioxide: Advancements and Thermal Applications

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Investigation of TiO2 and MWCNT Nanofluids-based Photovoltaic-Thermal (PV/T) System

Cited by 13 publications

References 15 publications

Nanofluids in Solar Thermal Collectors: Review and Limitations

Nanofluids in Solar Thermal Collectors: Review and Limitations

A review of photovoltaic thermal systems: Achievements and applications

Titanium Dioxide: Advancements and Thermal Applications

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Investigation of TiO₂ and MWCNT Nanofluids-based Photovoltaic-Thermal (PV/T) System