Ultrasound-assisted fermentation of ginkgo kernel juice by Lactiplantibacillus plantarum: Microbial response and juice composition development DOI Creative Commons
Jinling Chen, Qiqi Wang, Yuting Wu

et al.

Ultrasonics Sonochemistry, Journal Year: 2023, Volume and Issue: 99, P. 106587 - 106587

Published: Sept. 6, 2023

This study is aimed to explore the feasibility of ultrasound on enhancing fermentation properties ginkgo kernel juice by Lactiplantibacillus plantarum Y2. Specifically, at 20 kHz and different intensities (mild intensity-84.42 W/L, moderate intensity-115.50 high intensity-173.88 W/L) with a pulse mode were applied facilitate process. The number viable cells Y2 increased 5.06, 5.05 2.19% in sonicated groups 173.88, 115.50 84.42 compared non-sonicated after 24-h fermentation. Furthermore, mild intensity ultrasonication improved permeability cell membrane, which beneficial for metabolism phenolics, amino acids organic acids. Ultrasonication in-vitro antioxidant activity fermented promoting phenolic acids, such as ferulic acid, chlorogenic caffeic At end fermentation, group W/L has maximum consumptions total sugars proteins (increased 12.52 18.73%). Moreover, reduction rate poison material 4'-O-methylpyridoxine (MPN) more than 16.40% treatment 173.88 48 h. Overall, can improve metabolizations Lactobacillus reduce toxic substances, promoted nutritional value flavors juice.

Language: Английский

Intensification of biodiesel production by hydrodynamic cavitation: A critical review DOI
Xun Sun, Shuai Liu, Sivakumar Manickam

et al.

Renewable and Sustainable Energy Reviews, Journal Year: 2023, Volume and Issue: 179, P. 113277 - 113277

Published: April 6, 2023

Language: Английский

Citations

58
Effect of the arrangement of cavitation generation unit on the performance of an advanced rotational hydrodynamic cavitation reactor DOI Creative Commons
Xun Sun,

Gaoju Xia,

Weibin You

et al.

Ultrasonics Sonochemistry, Journal Year: 2023, Volume and Issue: 99, P. 106544 - 106544

Published: July 29, 2023

Hydrodynamic cavitation (HC) is widely considered a promising process intensification technology. The novel advanced rotational hydrodynamic reactors (ARHCRs), with considerably higher performance compared traditional devices, have gained increasing attention of academic and industrial communities. generation unit (CGU), located on the rotor and/or stator an ARHCR, utilized to generate consequently, its geometrical structure vital for performance. present work studied, first time, effect arrangement CGU representative ARHCR by employing computational fluid dynamics based "simplified flow field" strategy. arrangement, which was neglected in past, evaluated: radial offset distance (c), intersection angle (ω), number rows (N), circumferential (γ), spacing (r). results indicate that CGU, low ω moderate c, N, γ, r, performed highest efficiency. corresponding reasons were analyzed combining field pattern. Moreover, also exposed weakness strategy may induce unfavorable "sidewall effect" cause false high-pressure region. findings this provide reference value design ARHCRs.

Language: Английский

Citations

49
Numerical simulation of cavitation-vortex interaction mechanism in an advanced rotational hydrodynamic cavitation reactor DOI Creative Commons

Gaoju Xia,

Weibin You, Sivakumar Manickam

et al.

Ultrasonics Sonochemistry, Journal Year: 2024, Volume and Issue: 105, P. 106849 - 106849

Published: March 14, 2024

Hydrodynamic cavitation (HC), a promising technology for enhancing processes, has shown distinct effectiveness and versatility in various chemical environmental applications. The recently developed advanced rotational hydrodynamic reactors (ARHCRs), employing generation units (CGUs) to induce cavitation, have demonstrated greater suitability industrial-scale applications than conventional devices. However, the intricate interplay between vortex along with its spatial-temporal evolution complex flow field of ARHCRs, remains inadequately elucidated. This study investigated interaction mechanism representative interaction-type ARHCR first time using "simplified strategy" Q-criterion. findings reveal that instability caused by CGUs leads helical flows, subsequently giving rise both sheet cavitation. Subsequently, utilizing Q-criterion, structures are identified be concentrated inside at CGU edges process mergence separation. These directly influence shape dimensions cavities, establishing Lastly, vorticity transport equation analysis uncovered stretching dilatation terms dominate process. Simultaneously, baroclinic term focuses on vapor-liquid interface, characterized significant alterations density pressure gradients. contribute better comprehension cavitation-vortex ARHCRs.

Language: Английский

Citations

39
LES investigation of the wavy leading edge effect on cavitation noise DOI Creative Commons
Zhongpo Yang, Xincheng Wang, Xiaotao Zhao

et al.

Ultrasonics Sonochemistry, Journal Year: 2024, Volume and Issue: 103, P. 106780 - 106780

Published: Jan. 22, 2024

This paper investigates the noise reduction performance of biomimetic hydrofoils with wavy leading edge and corresponding mechanisms. We employ Large Eddy Simulation (LES) approach permeable Ffowcs Williams-Hawkings (PFW–H) method to predict cavitation around baseline hydrofoils. The results show that can effectively reduce high-frequency noise, but has little effect on low-frequency noise. Further analyses discussions deal main source for is cavity volume acceleration, while it. sources, related surface pressure fluctuations turbulence characteristics, are significantly suppressed by edge, thus decreasing intensity. Our investigation indicates great prospects technique.

Language: Английский

Citations

19
Assessing the industrialization progress of hydrodynamic cavitation process intensification technology: a review DOI
Xun Sun,

Haozhen Xu,

Xiaoxu Xuan

et al.

Current Opinion in Chemical Engineering, Journal Year: 2024, Volume and Issue: 45, P. 101037 - 101037

Published: June 26, 2024

Language: Английский

Citations

17
Investigation of cavitation noise using Eulerian-Lagrangian multiscale modeling DOI Creative Commons
Linmin Li,

Yabiao Niu,

Guolai Wei

et al.

Ultrasonics Sonochemistry, Journal Year: 2023, Volume and Issue: 97, P. 106446 - 106446

Published: May 19, 2023

We have employed the large eddy simulation (LES) approach to investigate cavitation noise characteristics of an unsteady cavitating flow around a NACA66 (National Advisory Committee for Aeronautics) hydrofoil by employing Eulerian-Lagrangian based multiscale model. A volume fluid (VOF) method simulates cavity, whereas Lagrangian discrete bubble model (DBM) tracks small bubbles. Meanwhile, is determined using Ffowcs Williams-Hawkings equation (FW-H). analysis has shown that, in comparison VOF, it more effective revealing microscopic flows, including microscale bubbles, that are unresolvable cloud and their impact on field. It also evident its evolution features consistent with experimental observations. The frequency maximum sound pressure level corresponds main cavity shedding characteristics. Using predict signal, results show noise, generated bubbles due collapse, mainly composed high-frequency signals. In addition, induced microbubbles 10 kHz. typical characteristic two intense pulses during collapsing described, as well mechanisms underlie these phenomena. findings this work provide fundamental understanding serve valuable reference design intensification hydrodynamic reactors.

Language: Английский

Citations

35
An overview of novel geometrical modifications and optimizations of gas-particle cyclone separators DOI

Ming Guo,

Yang Liu, Hyungjoon Son

et al.

Separation and Purification Technology, Journal Year: 2023, Volume and Issue: 329, P. 125136 - 125136

Published: Sept. 25, 2023

Language: Английский

Citations

33
Designing hollow mesoporous carbon sphere for high-rate supercapacitor in water-in-salt electrolyte DOI
Liping Feng, Huichao Liu, Wenyan Zan

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 486, P. 150346 - 150346

Published: March 11, 2024

Language: Английский

Citations

9
From barley straw biomass to N/S co-doped as electrode material for high-performance supercapacitor applications DOI

Zohreh Asadi Ghare Jeloo,

Sakineh Ghasemzadeh,

Hassan Hosseini‐Monfared

et al.

Materials Chemistry and Physics, Journal Year: 2024, Volume and Issue: 323, P. 129653 - 129653

Published: June 27, 2024

Language: Английский

Citations

9
Structural Optimization of Reactor for the Enhancement of CO2 Electrochemical Reduction Based on Gas–Liquid Mixing Flow Model DOI

Haolin Ye,

Xiaoxu Xuan, Mengjie Wang

et al.

Energy Technology, Journal Year: 2024, Volume and Issue: 12(4)

Published: Jan. 24, 2024

The CO 2 electrochemical reduction reaction (CO ERR) is heralded for carbon dioxide and renewable energy utilization. However, complexities in catalyst optimization reactor structure research hinder its practical application. Herein, rather than traditional optimization, emphasis placed on refining the to enhance gas–liquid mixing. goal raise concentration zone extend residence ERR. Building prior designs, this work introduces N‐reactor (the nozzle‐type reactor) with a ring electrode suited mixing interplay. Through finite element simulations using flow model, compared S‐reactors wide‐straight‐type narrow‐straight‐type reactor), N‐reactor's shows 12.99% rise 67.11% surge at cathode exit. As consequence, total of product methanol increased by 6.37%, maximum increase 26.96% 49.08% outlet. These results validate feasibility optimizing from perspective provide novel methods ideas further ERR, contributing application technology.

Language: Английский

Citations

7