A numerical investigation of the polyethylene glycol‐based tetra hybrid nanofluid flow over a stretched porous rotatory disk

ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Journal Year: 2024, Volume and Issue: 104(11)

Published: Oct. 5, 2024

Abstract Polyethylene glycol (PEG) is a great heat and mass transmissive fluid that has promising applications in medical, pharmaceutical, electronic industries. Tetra‐hybrid nanofluids (HNFs) are the most upgraded version of synthesized by dispersing four distinct nanoparticles carrier fluid. The study flow their advanced classes across rotatory disks receiving remarkable interest research innovation due to considerable like gas turbine rotors, aeronautical, medical equipment, rotating machinery, thermal power developing systems, so forth. Therefore, present paper aims inspect magnetohydrodynamic, steady, three‐dimensional, incompressible non‐Newtonian tetra‐HNF over stretched porous disk. chosen consists namely, molybdenum disulfide, copper oxide, magnesium zirconium oxide with PEG as model modified innovative impacts variable conductivity, radiation, chemical reaction, diffusivity, suction/injection make this more convenient. mathematical computation conducted via bvp4c numerical method, outputs determined tables graphs. Mounting values Deborah number amplify axial velocity while augmentation noticed fluid's radial azimuthal velocities for rising rotation parameter. Besides, parameter aids enhancing both transportation rates reaction significantly rate. One significant results inspection exhibits better than ternary‐HNF, HNF whereas it lesser skin friction HNF.

Language: Английский

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Highly Improved Dielectric and Thermal Performance of Polyalphaolefin Oil-Based Fluids Using MgO Nanoparticles

Coatings, Journal Year: 2023, Volume and Issue: 13(5), P. 931 - 931

Published: May 16, 2023

Polyalphaolefin (PAO) oil is widely used as a dielectric liquid due to its outstanding strength, high flash point, good oxidation resistance, and stability. The dispersion of MgO nanoparticles in PAO yields nanofluids with many properties superior base oils. This study clarifies the influence on (breakdown voltage, volume resistivity, relative permittivity) heat transfer PAO/MgO nanofluids. Changes concentration size modification surfactants change thermal performance Using raw material prepare fluid obtains product higher strength conductivity than those using PAO. results show that nanofluid-based has potential be applied soft coating protect electronic equipment industries.

Language: Английский

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Experimental investigation on an innovative serpentine channel‐based nanofluid cooling technology for modular lithium‐ion battery thermal management

Heat Transfer, Journal Year: 2024, Volume and Issue: 53(8), P. 4798 - 4821

Published: Aug. 27, 2024

Abstract Many nations have committed to becoming carbon neutral by 2050 as a means of addressing the global warming challenge. To achieve neutrality, transportation is one most essential and important tasks. Energy‐efficient pure electric vehicles (EVs) hybrid (HEVs) with green energy power are being developed in response worldwide environmental crises, potential replacements for current generation combustion‐engine automobiles. EVs require batteries more than ever before. In this perspective, lithium‐ion (LIBs) stand out remarkable storage technologies been widely used due their numerous impressive benefits. Owing LIBs sensitivity temperature, typically use battery thermal management system (BTMS). The working temperature span an car 15°C–35°C, which achieved BTMS. production internal heat during charging discharging also affects how well work. A control therefore required. LIB pack might be efficiently controlled liquid‐cooled systems discharge charge scenarios. Based on Al 2 O 3 nanofluid (NF), experimental study suggests novel active cooling technology regulating produced 18650‐format batteries. thorough analysis conducted impact charge/discharge C‐rates, nanoparticle (NP) volume fractions, inflow coolant velocity, intake liquid efficiency pack. By incorporating aluminum oxide NPs into water at varying fractions 0.3%, 0.5%, 1%, pack's maximum was significantly reduced 7.9%, 18.09%, 19.56%, respectively. With increase mass flow rate from 0.0290 0.5810 kg/s, has substantially 3.7%–8.6%. Results show that using higher fluid increased both highest experienced diversity throughout operation about, 6°C 5°C, outcomes indicate NFs exhibit superior performance compared conventional coolants such ethylene glycol.

Language: Английский

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Exploring the Optical and Electrical Characteristics of MgO/SiC-H2O Nanofluids for Thermal Energy Storage

East European Journal of Physics, Journal Year: 2023, Volume and Issue: 1, P. 181 - 184

Published: March 2, 2023

Heat is transferred to storage medium during the charging phase of thermal energy (TES), and it then released discharging phase. It may be used industrial operations like metallurgical transformations or solar power facilities. stored in materials that alter temperature, phase, chemical composition sensible, latent, thermochemical media, respectively. Optimal heat has a long history. This study describes investigating optical electrical properties MgO/SiC-H2O nanofluids for applications including storage. Results indicate when MgO/SiC NP concentrations were raised 1.2 gm/L, absorbance rose by approximately 66.9% transmittance about 54%. Additionally, increase concentration will raise absorbance, which indicates improved nanofluid dispersion. nanoparticle approach conductivity increases roughly 49.2%, melting time reduces as nanoparticles rises.

Language: Английский

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Novel multivariate correlation for thermal conductivity of SiC-MgO/ethylene glycol nanofluid based on an experimental study

Materials Science and Engineering B, Journal Year: 2023, Volume and Issue: 297, P. 116771 - 116771

Published: July 28, 2023

Language: Английский

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