Recent advances on improved optical, thermal, and radiative characteristics of plasmonic nanofluids: Academic insights and perspectives

Said, Zafar; Arora, Sahil; Farooq, Sajid; Sundar, L. Syam; Li, Changhe; Allouhi, A.

doi:10.1016/j.solmat.2021.111504

Cited by 155 publications

(22 citation statements)

References 233 publications

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“…To further improve the heat transfer capacity and tribological characteristics of MQL, some scholars have proposed a new clean cooling and lubrication technology with low carbon, low consumption, and high efficiency nanofluid MQL (NMQL) [192][193][194]. The technical approach aims to add one or several nanoparticles with different physical and chemical properties to MQL base oil and fully disperse and mix the nanoparticles to prepare nanofluid [195][196][197][198]. Then, under the action of highpressure air flow, the nanofluid is atomized and sprayed into the cutting area through the nozzle [199,200].…”

Section: Minimum Quantity Lubricationmentioning

confidence: 99%

Fiber-reinforced composites in milling and grinding: machining bottlenecks and advanced strategies

et al. 2022

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Fiber-reinforced composites have become the preferred material in the fields of aviation and aerospace because of their high-strength performance in unit weight. The composite components are manufactured by near net-shape and only require finishing operations to achieve final dimensional and assembly tolerances. Milling and grinding arise as the preferred choices because of their precision processing. Nevertheless, given their laminated, anisotropic, and heterogeneous nature, these materials are considered difficult-to-machine. As undesirable results and challenging breakthroughs, the surface damage and integrity of these materials is a research hotspot with important engineering significance. This review summarizes an up-to-date progress of the damage formation mechanisms and suppression strategies in milling and grinding for the fiber-reinforced composites reported in the literature. First, the formation mechanisms of milling damage, including delamination, burr, and tear, are analyzed. Second, the grinding mechanisms, covering material removal mechanism, thermal mechanical behavior, surface integrity, and damage, are discussed. Third, suppression strategies are reviewed systematically from the aspects of advanced cutting tools and technologies, including ultrasonic vibration-assisted machining, cryogenic cooling, minimum quantity lubrication (MQL), and tool optimization design. Ultrasonic vibration shows the greatest advantage of restraining machining force, which can be reduced by approximately 60% compared with conventional machining. Cryogenic cooling is the most effective method to reduce temperature with a maximum reduction of approximately 60%. MQL shows its advantages in terms of reducing friction coefficient, force, temperature, and tool wear. Finally, research gaps and future exploration directions are prospected, giving researchers opportunity to deepen specific aspects and explore new area for achieving high precision surface machining of fiber-reinforced composites.

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Section: Minimum Quantity Lubricationmentioning

confidence: 99%

Fiber-reinforced composites in milling and grinding: machining bottlenecks and advanced strategies

et al. 2022

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“…Most of the research was focused on analysing the thermal and heat transfer performance of nanofluids in various systems. While only a few researchers have reviewed the optical properties of nanofluids [10,[27][28][29] and their application in DASCs [22,[30][31][32][33]. Even though most of the existing review covers the study conducted on the spectral absorptivity of nanofluids, an extensive and focused review on broad band absorbing nanofluids (monocomponent, blended and hybrid nanofluids) are not present to date.…”

Section: Previous Reviews On Photothermal Applications Of Nanofluidsmentioning

confidence: 99%

Broadband absorbing mono, blended and hybrid nanofluids for direct absorption solar collector: a comprehensive review

Sreekumar¹,

Shah²,

Mondol³

et al. 2022

Nano Futures

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The evolution of nanofluids over the years have opened new research opportunities in the field of renewable energy. Research on the optical properties of nanofluids for application in direct absorption solar collectors (DASCs) is progressing at a burgeoning speed. In a direct absorption solar collector system, nanofluid with high optical absorptivity will convert the incident solar energy to the thermal energy of the fluid. The dispersed nanoparticles in the fluid acts in the process by the phenomenon of absorption and scattering. Studies conducted on the optical property characterization of monocomponent nanofluids have become saturated. Moreover, the photothermal efficiency of the nanofluid could be enhanced by using multicomponent nanofluids. Nanofluid prepared by varying materials, shapes, and size of nanoparticles could tune the absorption spectra of the bulk fluid to improve the photothermal efficiency. A hybrid nanocomposite can similarly enhance the absorptivity due to the synergy of materials present in the nanocomposite particle. In this review, a comprehensive survey on the synthesis and optical characterization of different blended and hybrid nanocomposite nanofluids have been performed. Besides, works on different mono nanofluids that have been studied over the years have been reviewed.

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“…5 Incorporating nanoparticles with high light absorption capability into the fluids has been proved a practical approach to enhance the optical characteristics of the base fluids. 6,7 These nanoparticle-laden fluids are usually termed nanofluids. [8][9][10] For applications in DASCs, nanofluids, even at low concentrations, can significantly improve the collector's performance.…”

Section: Introductionmentioning

confidence: 99%

“…The commonly used aqueous or oleiferous fluids (water, thermal oil, and ethylene glycol) usually suffer from poor light absorption capability, leading to low photo‐thermal conversion efficiency 5 . Incorporating nanoparticles with high light absorption capability into the fluids has been proved a practical approach to enhance the optical characteristics of the base fluids 6,7 . These nanoparticle‐laden fluids are usually termed nanofluids 8‐10 .…”

Section: Introductionmentioning

confidence: 99%

Photo‐thermal conversion performance of mono MWCNT and hybrid MWCNT‐TiN nanofluids in direct absorption solar collectors

Zheng

Yan

Long

et al. 2022

Intl J of Energy Research

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Summary Solar energy is being widely investigated due to its abundant, renewable, and clean features. Photo‐thermal conversion in solar collectors is a direct approach for harvesting solar energy. Compared to the commonly used surface‐based solar collectors (SSCs), nanofluid‐based direct absorption solar collectors (DASCs) are more efficient. In this work, water‐based mono MWCNT and hybrid MWCNT‐TiN nanofluids were prepared through a two‐step method, aiming at light absorption enhancement of nanofluids for applications in DASCs. The optical and photo‐thermal conversion performance of the MWCNT nanofluids was firstly evaluated. The results showed that the MWCNT nanofluids presented high solar absorption capability, and the highest photo‐thermal conversion efficiency was obtained at 10 ppm. The TiN nanoparticles were subsequently incorporated to form the hybrid MWCNT‐TiN nanofluids. The absorption performance of the hybrid nanofluids was further enhanced. The highest efficiency of the hybrid MWCNT‐TiN nanofluids was achieved at the TiN mass fraction of 10 ppm, which was about 6.9%, 6.0%, and 3.8% higher than that of the MWCNT nanofluid at 2000, 4000, and 6000 seconds due to the localized surface plasmon resonance (LSPR) effect of TiN nanoparticles. It was also found that the collector efficiency dropped rapidly with the prolonged irradiation time owing to the convection and radiation heat loss at the elevated temperature. Therefore, effective measures should also be taken to reduce heat loss to maintain high photo‐thermal conversion efficiency.

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Recent advances on improved optical, thermal, and radiative characteristics of plasmonic nanofluids: Academic insights and perspectives

Cited by 155 publications

References 233 publications

Fiber-reinforced composites in milling and grinding: machining bottlenecks and advanced strategies

Fiber-reinforced composites in milling and grinding: machining bottlenecks and advanced strategies

Broadband absorbing mono, blended and hybrid nanofluids for direct absorption solar collector: a comprehensive review

Photo‐thermal conversion performance of mono MWCNT and hybrid MWCNT‐TiN nanofluids in direct absorption solar collectors

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