Synthesis, stability, thermophysical properties and heat transfer applications of nanofluid – A review

Journal of Molecular Liquids, Journal Year: 2022, Volume and Issue: 364, P. 120034 - 120034

Published: Aug. 6, 2022

Language: Английский

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Enhancement of the heat transfer performance of a double-pipe heat exchangers in various configurations using Al₂O₃ nanofluid: A focused review

Journal of Thermal Analysis and Calorimetry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 21, 2025

Language: Английский

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A review on thermophysical properties, preparation, and heat transfer enhancement of conventional and hybrid nanofluids utilized in micro and mini channel heat sink

Sustainable Energy Technologies and Assessments, Journal Year: 2023, Volume and Issue: 58, P. 103327 - 103327

Published: June 17, 2023

Language: Английский

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Nanoparticle-enhanced coolants in machining: mechanism, application, and prospects

Frontiers of Mechanical Engineering, Journal Year: 2023, Volume and Issue: 18(4)

Published: Dec. 1, 2023

Abstract Nanoparticle-enhanced coolants (NPECs) are increasingly used in minimum quantity lubrication (MQL) machining as a green lubricant to replace conventional cutting fluids meet the urgent need for carbon emissions and achieve sustainable manufacturing. However, thermophysical properties of NPEC during processing remain unclear, making it difficult provide precise guidance selection principles industrial applications. Therefore, this paper reviews action mechanism, properties, future development directions NPEC. First, laws influence nano-enhanced phases base on performance revealed, dispersion stabilization mechanism preparation process is elaborated. Then, unique molecular structure physical NPECs combined elucidate their mechanisms heat transfer, penetration, antifriction effects. Furthermore, effect investigated basis excellent lubricating cooling by comprehensively quantitatively evaluating material removal characteristics turning, milling, grinding Results showed that turning Ti–6Al–4V with multi-walled nanotube volume fraction 0.2% resulted 34% reduction tool wear, an average decrease force 28%, 7% surface roughness Ra , compared flood process. Finally, research gaps further applications industry presented.

Language: Английский

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Nanofluids Minimal Quantity Lubrication Machining: From Mechanisms to Application

Lubricants, Journal Year: 2023, Volume and Issue: 11(10), P. 422 - 422

Published: Oct. 2, 2023

Minimizing the negative effects of manufacturing process on environment, employees, and costs while maintaining machining accuracy has long been a pursuit industry. Currently, nanofluid minimum quantity lubrication (NMQL) used in cutting grinding studied as useful technique for enhancing machinability empowering sustainability. Previous reviews have concluded beneficial NMQL factors affecting them, including volume fraction nanoparticle species. Nevertheless, summary mechanism performance evaluation processing different materials is deficient, which limits preparation specifications popularity factories. To fill this gap, paper concentrates comprehensive assessment processability based tribological, thermal, machined surface quality aspects nanofluids. The present work attempts to reveal nanofluids from viewpoint nanofluids’ physicochemical properties atomization performance. Firstly, study contrasts distinctions structure functional mechanisms between types base fluids molecules, providing quantitative comparative Secondly, theoretical models that affect stability various thermophysical nanofluids, revealing nanoparticles endow with unique heat transfer mechanisms. Finally, mapping relationship parameters material analyzed, guidance technical support industrial application scientific research

Language: Английский

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A Novel Application of MgO Nano-cutting Fluid in Hardened AISI D2 Steel Machining Using a Chemical Vapor Deposition-Coated Carbide Tool

Journal of Materials Engineering and Performance, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 23, 2025

Language: Английский

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Influence of nanofluids on the thermal performance and entropy generation of varied geometry microchannel heat sink

Case Studies in Thermal Engineering, Journal Year: 2023, Volume and Issue: 49, P. 103241 - 103241

Published: July 6, 2023

A microchannel heat sink (MCHS) is a compact, effective cooling device that meets the dissipation requirements of high-power electronic equipment. This paper investigates impact utilizing Al2O3/water, MgO/water, and TiO2/water nanofluids in rectangular MCHS. To ensure an acceptable comparison, flow rate kept constant at 2 m/s. The base subjected to 90W steady dissipation, which produces desired performance result. vol. concentration ranges from 0 8%. study covers wide range MCHS geometries; channel height (Hch) its width (Wch) ranging 200 800 μm 100–500 respectively. problem modeled, validated, analyzed. use maximizes transfer 24.95% minimizes thermal resistance total entropy generation (TEG) 15.01%, 19.96% TEG decreases 53.15% when Hch increases same 198% Wch increases. Nanofluids highest as well increase penalize system maximum by demanding more pumping power (Ω) 25.58%, 173.36%, 39% Al2O3/water MgO/water deliver better are recommended for future applications. Finally, authors suggest geometric parameter optimality performance.

Language: Английский

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Feasibility review of using copper oxide nanofluid to improve heat transfer in the double-tube heat exchanger

Results in Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 103227 - 103227

Published: Oct. 1, 2024

Language: Английский

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Review of hydrocarbon refrigerants as drop-in alternatives to high-GWP refrigerants in VCR systems: The case of R290

Cleaner Engineering and Technology, Journal Year: 2024, Volume and Issue: unknown, P. 100825 - 100825

Published: Oct. 1, 2024

Language: Английский

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Nanofluid heat transfer enhancement in microchannels: Investigating phases interactions using multiphase Eulerian model

International Journal of Thermofluids, Journal Year: 2024, Volume and Issue: 23, P. 100741 - 100741

Published: June 21, 2024

This study employs a robust multiphase Eulerian model to mimic heat transfer enhancement using nanofluids in circular microchannel. Unlike the models reported literature, current incorporates phase interactions, and its accuracy is significantly improved by integrating collision viscosity, kinetic frictional viscosity. Comparative analysis against other like mixture discrete demonstrates superior performance of model, particularly for solid particle volume fractions exceeding 1%. The evaluates water-based (Ag NPs, MgO, ZnO, Al2O3, ZrO2, SiO2) microchannels. Ag NPs/water excels at low high Reynolds numbers, while MgO/water performs better higher fractions. Moreover, Euler number indicates decreasing trend with increasing across all nanofluids. However, no notable variation observed when maintaining constant fraction number. Ultimately, applied obtain bulk fluid properties, such as viscosity thermal conductivity, after suspending nanoparticles. Subsequently, these properties were incorporated into single-phase model. Utilizing derived was found substantially enhance demonstrating reliability yielding results within 13.52% experimental data.

Language: Английский

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