Enhanced thermal and mass transfer of harnessing microbial mediation in electrically conducting Oldroyd-B nanofluid flow: Eukaryotes microorganisms in biological applications

Majeed, Aaqib; Ijaz, Nouman; Baazaoui, Narjes; Barghout, Kamal; Samar Ali, Sadia; Saleem, Najma; M Hassan, Ahmed; Naeem, Sidra

doi:10.1016/j.csite.2023.103570

Cited by 29 publications

(1 citation statement)

References 44 publications

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“…As an energy dissipation factor, β can quantitatively describe the degree of energy decay in the particles [23], and the higher the value of β is, the more serious the dissipation of energy is.…”

Section: Kinetic Energy Dissipation Of the Particlementioning

confidence: 99%

Characterization of energy dissipation of particle system in high velocity compaction

Yang,

Ma,

Xiong

et al. 2024

Phys. Scr.

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Energy transmission and dissipation during HVC lead to the uneven pressing force of the powder in the die cavity, which ultimately affects the densification and mechanical properties of powder metallurgy products. This study used the discrete element method (DEM) to monitor the energy transmission and dissipation of the powder system during HVC, investigate the relationship between the dissipation of kinetic energy and the impact energy during the loading stage, and consider the relationship between the strain energy release rate and the impact energy during the unloading stage. The results show that the boundary energy (impact energy) is mainly converted into strain, frictional, and damping energy, of which the kinetic energy is only an intermediate form and its attenuation equation is also obtained. The larger the porosity of the particle system is, the larger the dissipation factor β is, and the more serious the energy dissipation is. It can be found that the release rate of the strain energy gradually decreases with increasing impact energy, and the strain energy is significantly higher than the frictional energy in the green compacts.

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Section: Kinetic Energy Dissipation Of the Particlementioning

confidence: 99%

Characterization of energy dissipation of particle system in high velocity compaction

Yang,

Ma,

Xiong

et al. 2024

Phys. Scr.

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Optimizing nanofluid additives for enhanced thermophysical properties in anionic crude oil for EOR applications

Heris,

Bagheri,

Mousavi

et al. 2024

Can J Chem Eng

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This research delved into the effects of introducing multi‐walled carbon nanotubes (MWCNTs) and sodium dodecyl sulphate (SDS) into crude oil with an anionic base, aiming to enhance its thermophysical attributes in the EOR process. The investigation encompassed a range of properties, including interfacial tension, viscosity, density, and electrical conductivity, measured using an LV rheometer with spindle 18. Various ratios of MWCNTs and SDS were mixed with the crude oil to evaluate their impacts. The study uncovered that the 1:1 ratio of MWCNTs to SDS achieved a noteworthy 10% reduction in interfacial tension while minimally affecting viscosity, showing promise for practical applications. Temperature had diverse effects on viscosity and interfacial tension, displaying fluctuating trends. The highest observed result was a substantial 190% viscosity increase at 40°C with a 2:1 ratio, whereas the lowest was a slight −0.81% density change at 60°C for the 1:1 ratio. Additionally, interfacial tension consistently decreased over time for all ratios at various temperatures, with the most significant reductions observed at 40 and 60°C, particularly for the 1:2 and 1:1 ratios. Furthermore, adding MWCNTs and SDS led to a remarkable drop in electrical conductivity, indicating a substantial decrease in salt content within the crude oil. However, it was noted that higher MWCNT concentrations might not be cost‐effective, emphasizing the importance of optimizing additive ratios for a balance between performance and economic viability. This study highlights the potential of tailored nanofluid formulations to improve the thermophysical properties of crude oil, potentially enhancing extraction and refining processes.

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Rotating micropolar hybrid nanofluid: Exothermic/endothermic effects and waste discharge on exponential sheet

Bhaskar,

Sharma,

Bhaskar

2024

Math Methods in App Sciences

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This research offers a comprehensive investigation into the steady‐state, three‐dimensional flow of an incompressible hybrid nanofluid over a bi‐directionally stretching exponential sheet. A central aspect of the study is the behavior of rotating micropolar fluids within a Darcy‐Forchheimer porous medium, enhanced by the inclusion of electromagnetic forces. The effects of embedding nanoparticles and in a water‐based fluid are explored to reveal their influence on fluid motion and heat transfer. The thermal dynamics are scrutinized, with particular emphasis on the roles of heat absorption and viscous dissipation. Moreover, this study incorporates both endothermic and exothermic reactions in radiative flows, alongside the impact of Soret and Dufour diffusion effects. The discharge of wastewater is a critical issue in environmental management and industrial applications, underscoring the need for rigorous regulation to prevent water pollution and ensure adherence to environmental standards. This research addresses the non‐Newtonian flow resulting from wastewater discharge, incorporating Arrhenius activation energy in the analysis. Furthermore, the behavior of microorganisms within the flow is studied under velocity slip conditions and a range of convective boundary conditions. Through the application of similarity transformations, the governing differential equations are derived and solved numerically using MATLAB's bvp4c solver, with results depicted through detailed graphical analysis to illustrate the fluid's complex behavior. The heat transfer rate gets reduced by 1.96% with the enhancement in the Eckert number.

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Enhanced thermal and mass transfer of harnessing microbial mediation in electrically conducting Oldroyd-B nanofluid flow: Eukaryotes microorganisms in biological applications

Cited by 29 publications

References 44 publications

Characterization of energy dissipation of particle system in high velocity compaction

Characterization of energy dissipation of particle system in high velocity compaction

Optimizing nanofluid additives for enhanced thermophysical properties in anionic crude oil for EOR applications

Rotating micropolar hybrid nanofluid: Exothermic/endothermic effects and waste discharge on exponential sheet

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