Numerical computations on thermal performance of large-scale Ti-Mn-based metal hydride storage reactor via open source CFD software DOI
A. Babou,

Yasmina Kerboua Ziari,

Youcef Kerkoub

et al.

Proceedings of the Institution of Mechanical Engineers Part A Journal of Power and Energy, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 16, 2024

Certain metals and metal alloys can absorb hydrogen through an exothermic chemical reaction, resulting in the formation of hydrides. To maintain a rapid charging rate, produced heat must be extracted as rapidly it is generated. This study was attempted to evaluate transfer enhancement cylindrical storage reactor equipped with central tube for large-scale applications using 3D transient model. Finite-volume simulations are carried out open-source software package OpenFOAM systematically investigate impacts material thermophysical properties, cooling media, exchanger design on behaviors rate. The reactor’s performance evaluated terms temperature total mass history profiles, addition pressure drop. findings indicated that time improved by roughly 86%, compared case without thermal attain 90% capacity. A diminished drop observed between water-based Al 2 O 3 nanofluid 5 vol% concentration pure water at lowered coolant flow velocities, hence enhancing pumping power efficiency. Moreover, results demonstrated rate markedly effective conductivity hydride bed, increasing exchange area, accelerating lowering its temperature. outcomes highlighted possibility advancing current practical application.

Language: Английский

Bio-inspired preparation of Ag NPs, rGO, and Ag/rGO nanocomposites for acoustical, antioxidant, and plant growth regulatory studies DOI Creative Commons
Prashant D. Sarvalkar,

Anuj S. Jagtap,

Rai Dhirendra Prasad

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 25, 2025

Acoustical properties are essential for understanding the molecular interactions in fluids, as they influence physicochemical behavior of liquids and determine their suitability diverse applications. This study investigated acoustical parameters silver nanoparticles (Ag NPs), reduced graphene oxide (rGO), Ag/rGO nanocomposite nanofluids at varying concentrations. Ag NPs nanocomposites were synthesized via a Bos taurus indicus (BTI) metabolic waste-assisted method characterized using advanced techniques, including XRD, TEM, Raman, DLS, zeta potential, XPS. The evaluated acoustical, antioxidant, plant growth-regulatory properties. analysis revealed linear relationship between nanofluid concentration density, with key such adiabatic compressibility, apparent molar volume increase lower Irregular changes ultrasonic velocity other 0.025 mol/dm3 suggest unique nanoparticle-solvent interactions. exhibited superior antioxidative potential compared to NPs, DPPH scavenging activity reaching 65.69% ABTS 65.01% 100 µg/mL. Plant growth studies have demonstrated enhanced germination rates (100% spinach 40% fenugreek) improved root shoot elongation 0.0025–0.005 mol/dm3. bridges gap multifunctional biomedical, agricultural, environmental

Language: Английский

Citations

1

The Applications and Challenges of Nanofluids as Coolants in Data Centers: A Review DOI Creative Commons
Le Sun, Jiafeng Geng, Kaijun Dong

et al.

Energies, Journal Year: 2024, Volume and Issue: 17(13), P. 3151 - 3151

Published: June 26, 2024

With the rapid development of artificial intelligence, cloud computing and other technologies, data centers have become vital facilities. In construction operation centers, how to effectively solve problem cooling energy saving is key problem. this review article, a critical recent research regarding application nanofluids in center are put forward. Many different aspects such as classification nanoparticles, base fluid components, types structures heat exchangers were discussed. Furthermore, some advanced up-to-date apparatus theoretical models utilizing coolants reviewed described detail. Lastly, but not least, potential directions future challenges faced by researchers industry field proposed conclusion, used novel exchange medium, which has been widely proven areas, can also conspicuously improve technology future.

Language: Английский

Citations

6

Enhancing coolant performance using carbon nanoparticles as additives DOI Creative Commons
Kailash Arole, Anubhav Sarmah,

Joseph V. Kosmoski

et al.

Nano Trends, Journal Year: 2025, Volume and Issue: unknown, P. 100093 - 100093

Published: Feb. 1, 2025

Language: Английский

Citations

0

Thermohydraulic performance augmentation and heat transfer enhancement of automotive radiators using nano-coolants: a critical review DOI
Mohamed H. S. Bargal,

Abdelwahab N. Allam,

Ashraf M. Zaki

et al.

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

Published: March 6, 2025

Language: Английский

Citations

0

Nanofluids and engineering applications: A review DOI Open Access
Hasan Donat Yıldızay, Muhammed Bekmezci, Fatih Şen

et al.

Journal of Scientific Reports-A, Journal Year: 2025, Volume and Issue: 060, P. 126 - 149

Published: March 25, 2025

With the development of technology, search for advanced materials has accelerated. Nanomaterials have emerged as an important material group in this and found a place themselves many different areas. Nanofluids, which are formed by dispersing nanoparticles basic liquids such water, ethylene glycol, or oils, very innovative method applications nanoparticles. They also wide range applications. The improved thermophysical properties nanofluids made research area engineering. Nanofluids gained unique area, especially cooling lubrication systems due to their higher thermal conductivity, viscosity, convective heat transfer compared traditional liquids. hold promises solar energy systems, defense industry nuclear plants, biomedical applications, automotive, aviation industries where efficient is important. It been shown that use processing processes increases product quality minimizes wear. Despite these benefits, problems stability, cost, long-term performance continue. These challenges continue be investigated with focus on optimizing nanoparticle concentration, developing dispersion methods, analyzing environmental impact nanofluids. Computational experimental studies will help understand flow behavior under operating conditions. aim paper review existing nanofluid studies. provides overview current developments field engineering, focusing functions transfer, industrial processes.

Language: Английский

Citations

0

Nanofluids for Enhancing the Heat Transfer Coefficient DOI
Basant Singh Sikarwar, Rajeev Kumar Singh, Pushpendra Kumar Singh Rathore

et al.

IGI Global eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 381 - 418

Published: April 11, 2025

Nanofluids represent a promising frontier in materials science and engineering, offering unprecedented opportunities to enhance heat transfer efficiency, mechanical properties, biomedical applications. Nanofluids, which are suspensions of nanomaterials base fluids, have garnered significant interest due their unique properties potential applications across various fields. This chapter overview recent advancements, preparation methods, stability evaluation, enhancement current for nanofluids. Continued research innovation nanotechnology will play crucial role unlocking the full nanofluids diverse fields, paving way more efficient sustainable technological advancements future.

Language: Английский

Citations

0

Experimental Investigation of air jet impingement cooling in car radiator with hollow cone nozzle plate spacing using nanofluids DOI Creative Commons
P. Venkataramana,

V. Mani Kumar,

N. Ram

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: April 23, 2024

Abstract Water and coolant oil are two common heat transfer fluids that used a lot in car radiators these days. But much more must be done with the fluid transmits to make system effective handling heat. Nanoparticle cooling speeds up movement of through radiator makes it possible smaller altogether. In present study, examine characteristics nanofluids DI water Ethylene glycol (60:40). Four different concentrations were prepared by mixing 0.05 0.3 Vol. % mixture glycol. The studies carried out varying from 3 15 LPM while keeping airspeed at mean 5 m/s. had lower thermal conductivity 0.891 W/m K than EG nanofluid, which 0.946 K. nanofluid showed significant coefficient 36384.41 W/m2 water. viscosity increases as concentration decreases temperature rises.

Language: Английский

Citations

2

Empirical Study of the Effect of Nanocoolant Particles on Corrosion Rate of 316 Stainless Steel DOI Creative Commons
Yuli Panca Asmara,

Jeya gopi Raman,

Suparjo

et al.

International Journal of Corrosion, Journal Year: 2024, Volume and Issue: 2024, P. 1 - 8

Published: May 6, 2024

The advancement of nanotechnology has had an impact on the use heat exchangers. Nanocoolants, which offer higher thermal efficiency than traditional coolants, have paid significant attention. These innovative fluids, contain nanomaterials, not only better but also improve energy compared to regular coolants. However, presence solid nanoparticles in coolant may cause corrosion and erosion tubes, leading massive degradation those parts. To evaluate effectiveness nanocoolant particles, this research was conducted by studying using erosion-corrosion occurring metal surfaces. study focused stainless steel (AISI 316) solutions containing nanoparticles. experiments utilized a rotating cylinder electrode (RCE) with rotational speeds ranging from 0 1800 rpm temperature range 30°C-70°C. rate determined linear polarization resistance (LPR) method, while measured calculating average surface roughness samples. design experiment (DOE) find mathematical expressions effects corrosion. findings revealed that samples increased increase rotation speed. Furthermore, were less stagnant conditions flow conditions, differences observed when conventional coolant. Additionally, synergistic processes detected at temperatures for both types

Language: Английский

Citations

1

Investigation of the Theoretical Model of Nano-Coolant Thermal Conductivity Suitable for Proton Exchange Membrane Fuel Cells DOI Creative Commons
Qi Tao, Bi Fu,

Fei Zhong

et al.

Nanomaterials, Journal Year: 2024, Volume and Issue: 14(21), P. 1710 - 1710

Published: Oct. 26, 2024

The fuel cell vehicle is one of the essential directions for developing new energy vehicles. But heat dissipation a critical technical difficulty that needs to be solved urgently. Nano-coolant promising coolant can potentially replace existing cell. However, its thermal conductivity has significant impact on performance, which closely related nanoparticles’ conductivity, volume fraction, and nano-coolant temperature. Many scholars have created models nano-coolants explore mechanism nano-coolants’ conductivity. At present, there no unified opinion micro nano-coolant. Hence, this paper proposed novel model predict ethylene glycol/deionized water-based nano-coolants. A corrected was designed based Hamilton & Crosser nanolayer theory. Finally, theoretical suitable vehicles constructed base fluid’s experimental data.

Language: Английский

Citations

1

Experimental investigation of air jet impingement cooling in car radiator with hollow cone nozzle plate spacing using nanofluids DOI
P. Venkataramana,

V. Mani Kumar,

N. Ram

et al.

Heat and Mass Transfer, Journal Year: 2024, Volume and Issue: 60(8), P. 1377 - 1391

Published: June 22, 2024

Language: Английский

Citations

0