Thermal performance investigation of Therminol55/MWCNT+CuO nanofluid flow in a heat exchanger from an exergy and entropy approach

Irshad, Kashif; Islam, Nazrul; Zahir, Md. Hasan; Pasha, Amjad Ali; AbdelGawad, Ahmed Farouk

doi:10.1016/j.csite.2022.102010

Cited by 21 publications

(9 citation statements)

References 58 publications

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“…The oxidations of TH55 during the ultrasonic treatment help to form some long-chain oxygenated species such as fatty acids and other carboxylic acids, which work as the stabilizing agents of the charged particles in a liquid medium. The stabilized nanoparticles in the non-polar liquid media can be observed in previous studies without adding any surfactants [ 30 , 31 , 32 ]. However, nonfluid demonstrates comparatively reduced stability at the higher concentration (0.2 wt%), possibly due to the agglomeration of the nanomaterials in the oil medium at higher concentrations.…”

Section: Resultssupporting

confidence: 58%

Thermo-Optical Characterization of Therminol55 Based MXene–Al2O3 Hybridized Nanofluid and New Correlations for Thermal Properties

et al. 2022

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The current research focuses on formulating a new class of Therminol55-based nanofluids that incorporates an MXene/Al2O3 nanocomposite as the new class of dispersant at three different concentrations of 0.05, 0.10, and 0.20 wt%. The optical and thermophysical properties of the formulated nanofluid are assessed experimentally. Zeta potential and FTIR analyses are employed to evaluate the composite particles' surface charge and chemical stability, respectively. Thermal conductivity is observed to increase with nanoparticle loading and maximally augmented by 61.8% for 0.20 wt%, whereas dynamic viscosity increased with adding nanoparticles but remarkably dropped with increasing temperature. In addition, the prepared TH55/MXene + Al2O3 samples are thermally stable up to 200 °C according to TGA analyses. Moreover, the proposed correlations for the thermal conductivity and viscosity showed good agreement with the experimental data. The study’s findings suggest that the formulated nanofluid could be a viable contender to be used as a heat transfer fluid in the thermal sector.

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Section: Resultssupporting

confidence: 58%

Thermo-Optical Characterization of Therminol55 Based MXene–Al2O3 Hybridized Nanofluid and New Correlations for Thermal Properties

et al. 2022

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“…Generally, increasing the concentration of nanoparticles has been found to augment the TC of nanofluids. The TC of MWCNT-CuO/therminol55 nanofluids was observed to enhance as the concentration rose from 0.005 wt% to 0.08 wt% with the highest augmentation of 128.4% [ 46 ].…”

Section: Tc Enhancement Contributing Factorsmentioning

confidence: 99%

“…Using TiO 2 –SiO 2 /EG nanofluids, the effect of increasing volume concentration and temperature on the TC revealed a peak improvement of 22.1% with 3 vol% concentration and at 70 °C [ 59 ]. Under increasing temperature (20–100 °C) and weight concentration (0.005–0.08 wt%), the TC of MWCNT-CuO/therminol55 nanofluids was accessed leading to enhancement of 30.6–128.4% [ 46 ]. This remarkable enhancement was attributed to the ultrathin nanolayer between the nanoparticle-base fluid interface.…”

Section: Tc Enhancement Contributing Factorsmentioning

confidence: 99%

“…Classical studies showed TC enhancement of 50–150% for the suspension of Al 2 Cu and Ag 2 Al in EG and water with concentrations of 0.2–1.5 vol% [ 21 ], while 27.8% improvement was recorded for 0.05 wt% MWCNT + 0.02 wt% Fe 2 O 3 /water nanofluid [ 45 ]. For contemporary investigations of the TC of hybrid nanofluids, maximum enhancements of 28.5% [ 27 ] and 128.4% [ 46 ] were reported for MWCNT + Fe 3 O 4 /water (at 0.3% particle loading and 60 °C) and MWCNT-CuO/therminol55 nanofluids (at 0.08 wt% concentration and 80 °C), respectively. Recent work showed that the TC of W-bio glycol (60:40) based SiO 2 -Al 2 O 3 nanofluids (with 0.5 vol% concentration, different mixing ratios, and temperatures) was higher than those of SiO 2 and Al 2 O 3 nanofluids [ 47 ].…”

Section: Introductionmentioning

confidence: 99%

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Thermal Conductivity Enhancement of Metal Oxide Nanofluids: A Critical Review

et al. 2023

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Advancements in technology related to energy systems, such as heat exchangers, electronics, and batteries, are associated with the generation of high heat fluxes which requires appropriate thermal management. Presently, conventional thermal fluids have found limited application owing to low thermal conductivity (TC). The need for more efficient fluids has become apparent leading to the development of nanofluids as advanced thermal fluids. Nanofluid synthesis by suspending nano-size materials into conventional thermal fluids to improve thermal properties has been extensively studied. TC is a pivotal property to the utilization of nanofluids in various applications as it is strongly related to improved efficiency and thermal performance. Numerous studies have been conducted on the TC of nanofluids using diverse nanoparticles and base fluids. Different values of TC enhancement have been recorded which depend on various factors, such as nanoparticles size, shape and type, base fluid and surfactant type, temperature, etc. This paper attempts to conduct a state-of-the-art review of the TC enhancement of metal oxide nanofluids owing to the wide attention, chemical stability, low density, and oxidation resistance associated with this type of nanofluid. TC and TC enhancements of metal oxide nanofluids are presented and discussed herein. The influence of several parameters (temperature, volume/weight concentration, nano-size, sonication, shape, surfactants, base fluids, alignment, TC measurement techniques, and mixing ratio (for hybrid nanofluid)) on the TC of metal oil nanofluids have been reviewed. This paper serves as a frontier in the review of the effect of alignment, electric field, and green nanofluid on TC. In addition, the mechanisms/physics behind TC enhancement and techniques for TC measurement have been discussed. Results show that the TC enhancement of metal oxide nanofluids is affected by the aforementioned parameters with temperature and nanoparticle concentration contributing the most. TC of these nanofluids is observed to be actively enhanced using electric and magnetic fields with the former requiring more intense studies. The formulation of green nanofluids and base fluids as sustainable and future thermal fluids is recommended.

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“…Nanofluids in various concentrations have mainly been studied with different applications and played a significant role in thermal characteristics in other devices. [9][10][11] Scientists have widely utilized nanofluids in machining processes such as grinding, milling, turning, drilling, and superfinishing to enhance the machining performance. [12] Chaudhari et al [13] experimentally investigated the effect of CuO and Al 2 O 3 nanofluids on thermal performance for machining applications.…”

Section: Introductionmentioning

confidence: 99%

Effect of Using CuO–Oil Nanofluid on Surface Roughness and Thermal Performance during Superfinishing Process

et al. 2023

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This research aims to investigate the effect of adding copper oxide nanoparticles to the oil Gr‐6004 base fluid and its concentration changes from 0.1% to 0.4% on the surface roughness of gudgeon pin and the thermal conductivity of the nanofluids during the superfinishing process. The main novelty of this investigation is analyzing the impact of utilizing CuO/oil Gr‐6004 nanofluid on thermal conductivity of oil and surface quality of gudgeon pin during superfinishing process. Based on the results, adding nanoparticles to the oil Gr‐6004 has significantly reduced the surface roughness. In addition, by increasing the concentration of nanoparticles to 0.4%, the surface roughness has decreased by 57% compared to oil Gr‐6004. Also, by adding nanoparticles, the thermal conductivity of the nanofluids has increased to 19.5%. In addition, dispersing CuO nanoparticles into base fluid reduces oil temperature by 17.44%.

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Thermal performance investigation of Therminol55/MWCNT+CuO nanofluid flow in a heat exchanger from an exergy and entropy approach

Cited by 21 publications

References 58 publications

Thermo-Optical Characterization of Therminol55 Based MXene–Al2O3 Hybridized Nanofluid and New Correlations for Thermal Properties

Thermo-Optical Characterization of Therminol55 Based MXene–Al2O3 Hybridized Nanofluid and New Correlations for Thermal Properties

Thermal Conductivity Enhancement of Metal Oxide Nanofluids: A Critical Review

Effect of Using CuO–Oil Nanofluid on Surface Roughness and Thermal Performance during Superfinishing Process

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