Thermal and Flow Characteristics of Alumina Nanofluids in Microfluidic Systems: A Low-Concentration Study DOI Creative Commons

Lingenthiran Samylingam,

Navid Aslfattahi, K. Kadirgama

et al.

Journal of Advanced Research in Numerical Heat Transfer, Journal Year: 2024, Volume and Issue: 28(1), P. 131 - 144

Published: Dec. 18, 2024

Microfluidic technologies and nanofluids represent a synergistic combination with significant potential for enhancing heat transfer thermal management applications. This study investigates the flow characteristics of 0.001 wt.% alumina (Al₂O₃)-water nanofluid within custom-designed serpentine microfluidic channel. The was prepared characterized its conductivity, viscosity, specific heat, density. Experimental studies, supplemented by numerical simulations, were conducted to evaluate fluid's behavior under controlled conditions. Results indicated slight increase in conductivity Al₂O₃ compared pure water, increments ranging from 0.16% at 20°C 0.30% 80°C, attributed enhanced Brownian motion nanoparticles. Viscosity measurements revealed marginal increases, suggesting minimal impact on fluid dynamics. experiments demonstrated consistent pressure gradient laminar regime, essential precise control efficient management. Temperature contours showed effective dissipation, steady inlet outlet. concludes that low-concentration can enhance performance systems without significantly affecting characteristics, making them suitable applications requiring such as electronic cooling chemical reactions. These findings provide foundation future research into higher nanoparticle concentrations different base fluids, aimed optimizing properties environments. integration holds promise advancing reliability next-generation systems.

Language: Английский

Nanofluids for Advanced Applications: A Comprehensive Review on Preparation Methods, Properties, and Environmental Impact DOI Creative Commons
Izzat Razzaq, Xinhua Wang, Ghulam Rasool

et al.

ACS Omega, Journal Year: 2025, Volume and Issue: 10(6), P. 5251 - 5282

Published: Feb. 3, 2025

Nanofluids, an advanced class of heat transfer fluids, have gained significant attention due to their superior thermophysical properties, making them highly effective for various engineering applications. This review explores the impact nanoparticle integration on thermal conductivity, viscosity, and overall performance base highlighting improvements in systems, such as exchangers, electronics cooling, PV/T CSP technologies, geothermal recovery. Key mechanisms nanolayer formation, Brownian motion, aggregation are discussed, with a focus hybrid nanofluids that show enhanced conductivity. The increase viscosity poses trade-off, necessitating careful control properties optimize while reducing energy consumption. Empirical data up 123% convective coefficients, demonstrating tangible benefits efficiency system miniaturization. also considers environmental impacts nanofluid use, potential toxicity challenges sustainable production disposal. Future research directions include developing specific integrating phase change materials, exploring new nanomaterials metal chalcogenides enhance sustainability management systems.

Language: Английский

Citations

2
Effect of nanofluids-PCM heat exchanging on engine downsizing and heat transfer enhancement via the heat engine's cooling system: A novel saving tactic DOI
Kareem Emara, Ahmed Mahfouz M.M. Abd-Elgawad, Ahmed Emara

et al.

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 117, P. 115815 - 115815

Published: March 13, 2025

Language: Английский

Citations

1
Melting and energy storage performance enhancement of rectangular cavity with metal foam by nano-PCM and recessed/protruding dimpled fin wall DOI
Emrehan Gürsoy

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 119, P. 116327 - 116327

Published: March 25, 2025

Language: Английский

Citations

0
Experimental Evaluation of a Novel Photovoltaic Thermal System: Energy, Economic, and Exergy-Based Sustainability Analysis DOI Creative Commons
Hariam Luqman Azeez, Adnan Ibrahim,

Banw Omer Ahmed

et al.

Case Studies in Thermal Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 106167 - 106167

Published: April 1, 2025

Language: Английский

Citations

0
Thermal and Flow Characteristics of Alumina Nanofluids in Microfluidic Systems: A Low-Concentration Study DOI Creative Commons

Lingenthiran Samylingam,

Navid Aslfattahi, K. Kadirgama

et al.

Journal of Advanced Research in Numerical Heat Transfer, Journal Year: 2024, Volume and Issue: 28(1), P. 131 - 144

Published: Dec. 18, 2024

Microfluidic technologies and nanofluids represent a synergistic combination with significant potential for enhancing heat transfer thermal management applications. This study investigates the flow characteristics of 0.001 wt.% alumina (Al₂O₃)-water nanofluid within custom-designed serpentine microfluidic channel. The was prepared characterized its conductivity, viscosity, specific heat, density. Experimental studies, supplemented by numerical simulations, were conducted to evaluate fluid's behavior under controlled conditions. Results indicated slight increase in conductivity Al₂O₃ compared pure water, increments ranging from 0.16% at 20°C 0.30% 80°C, attributed enhanced Brownian motion nanoparticles. Viscosity measurements revealed marginal increases, suggesting minimal impact on fluid dynamics. experiments demonstrated consistent pressure gradient laminar regime, essential precise control efficient management. Temperature contours showed effective dissipation, steady inlet outlet. concludes that low-concentration can enhance performance systems without significantly affecting characteristics, making them suitable applications requiring such as electronic cooling chemical reactions. These findings provide foundation future research into higher nanoparticle concentrations different base fluids, aimed optimizing properties environments. integration holds promise advancing reliability next-generation systems.

Language: Английский

Citations

0