On the Influence of the Specific Dissipation Rate Distribution on the Efficiency of Mass Transfer in Apparatuses with Liquid-Phase Media DOI Open Access
Р. Ш. Абиев

Processes, Journal Year: 2025, Volume and Issue: 13(4), P. 967 - 967

Published: March 25, 2025

A theoretical analysis of the influence distribution local specific energy dissipation rate on interfacial area, surface and volumetric mass transfer coefficients in apparatuses with heterophase processes a liquid continuous phase, as well quality mixing homophase reactions is performed. It shown that average value over volume device not full-fledged criterion for assessing useful effect since it does take into account, one hand, level active zones and, other features flow structure residence time zones, depending geometry method input it. Limiting cases are discussed: (1) uneven presence small high (2) ideally uniform throughout entire device. In first case, significant part used inefficiently; second an excessive amount spent. this regard, concepts dosed distributed long-term maximum concentration microvolume fast-flowing considered.

Language: Английский

Decarbonization absorption of ship exhaust gas and solvent regeneration by a high-gravity method DOI
Jianlu Zhu, Nan Li,

Qi Nie

et al.

Fuel, Journal Year: 2025, Volume and Issue: 388, P. 134443 - 134443

Published: Feb. 1, 2025

Language: Английский

Citations

1
Numerical analysis of blade height ratio effects on mixing efficiency and energy consumption in triple-blade concentric double-helix static mixers DOI
Younes Menni, Zakaria Sari Hassoun, Noureddine Kaid

et al.

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(2)

Published: Feb. 1, 2025

This work aims to find the optimum value of blade height ratio (R) for improving mixing performance and energy consumption a Triple-Blade Concentric Double-Helix Static Mixer. In this study, two fluids at different concentrations subjected laminar flow conditions is numerically analyzed by using finite element-based Computational Fluid Dynamics simulations. Different values R parameter are considered in wide range Reynolds numbers (Re = 200–1000). analysis then carried out an in-depth study R's effect on performance, strength segregation, index, helicity, velocity profile, pressure drop, pumping power, efficiency. The findings showed that 2/3 gave highest index (MI), with maximum 0.99 Re number 600, which best channel. Helicity visualization also complex helicity patterns increased vortex interactions configuration. geometry improvement MI about 17.85% over Single-Helix Mixer (TB-CSH-SM) 0 600. It important mention increasing leads increase drop and, consequently, consumption. Although gives relatively higher than 0, has lowest power input but lower MI. investigation concludes represents balanced solution since it realizes moderate hence suitable applications requiring efficient compromise between quality

Language: Английский

Citations

1
On the Influence of the Specific Dissipation Rate Distribution on the Efficiency of Mass Transfer in Apparatuses with Liquid-Phase Media DOI Open Access
Р. Ш. Абиев

Processes, Journal Year: 2025, Volume and Issue: 13(4), P. 967 - 967

Published: March 25, 2025

A theoretical analysis of the influence distribution local specific energy dissipation rate on interfacial area, surface and volumetric mass transfer coefficients in apparatuses with heterophase processes a liquid continuous phase, as well quality mixing homophase reactions is performed. It shown that average value over volume device not full-fledged criterion for assessing useful effect since it does take into account, one hand, level active zones and, other features flow structure residence time zones, depending geometry method input it. Limiting cases are discussed: (1) uneven presence small high (2) ideally uniform throughout entire device. In first case, significant part used inefficiently; second an excessive amount spent. this regard, concepts dosed distributed long-term maximum concentration microvolume fast-flowing considered.

Language: Английский

Citations

0