Geometrical improvement of inline high shear mixers to intensify micromixing performance

Qin, Hongyun; Zhang, Chen; Xu, Qi; Dang, Xiuhu; Li, Wei; Lei, Kailiang; Zhou, Litao; Zhang, Jinli

doi:10.1016/j.cej.2017.02.150

Cited by 31 publications

(22 citation statements)

References 47 publications

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“…Smaller-scale blending works at the same time with full-scale blending in the substance reactors used in procedural businesses and assumes a key job in accomplishing the ideal selectivity concerning the ideal items [20]. Micromixing measurement by the chemical probe in homogeneous and isotropic turbulence [20], mixing performance [21], and combined E-model and CFD is done by Duan et al [22]. Their result shows that CFD plays an important role in mixing analysis.…”

Section: Introductionmentioning

confidence: 99%

RETRACTED: Numerical Simulation of Micromixing of Particles and Fluids with Galloping Cylinder

Abdelmalek

Jamalabadi

2020

Symmetry

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Micromixers are significant segments inside miniaturized scale biomedical frameworks. Numerical investigation of the effects of galloping cylinder characteristics inside a microchannel Newtonian, incompressible fluid in nonstationary condition is performed. Governing equations of the system include the continuity equation, and Navier–Stokes equations are solved within a moving mesh domain. The symmetry of laminar entering the channel is broken by the self-sustained motion of the cylinder. A parameter study on the amplitude and frequency of passive moving cylinder on the mixing of tiny particles in the fluid is performed. The results show a significant increase to the index of mixing uses of the galloping body in biomedical frameworks in the course of micro-electromechanical systems (MEMS) devices.

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Section: Introductionmentioning

confidence: 99%

RETRACTED: Numerical Simulation of Micromixing of Particles and Fluids with Galloping Cylinder

Abdelmalek

Jamalabadi

2020

Symmetry

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“…Thus, the excessive H + will lead to the occurrence of Reaction (2). It can be seen from the rate laws of Equations (6) and 7that Reaction (2) is more sensitive to H + due to its higher rate order. Moreover, the chemical reaction rate of Reaction (2) is usually higher when compared to the micromixing rate, 41 We cautiously mention here that the difference of Xs between the CTC and LTC becomes remarkable with the flow in the TC reactor to be judged to be fully turbulent.…”

Section: Effect Of Feeding Time On Xsmentioning

confidence: 99%

“…Various kinds of reactor have been developed and investigated in previous studies, aiming to improve the mixing performance. For example, the use of a spinning disk reactor, 2 impinging jet reactor, 3 microchannel reactor, 4 T‐shaped reactor, 5 and high shear mixer 6 have all been studied before. The Taylor–Couette flow (TC) reactor with the features of controllable mean residence time and narrow shear rate distribution has also received a lot of attention.…”

Section: Introductionmentioning

confidence: 99%

Effect of hydrodynamic heterogeneity on micromixing intensification in a Taylor–Couette flow reactor with variable configurations of inner cylinder

Liu

Yang

et al. 2021

AIChE Journal

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Effect of hydrodynamic heterogeneity on micromixing intensification in a Taylor-Couette flow (TC) reactor with variable configurations of inner cylinder has been investigated by adoption of a parallel competing iodide-iodate reaction system. Two types of inner cylinder, circular inner cylinder and lobed inner cylinder (CTC and LTC), were used to generate hydrodynamic heterogeneity, focusing on the effects of the Reynolds number, the acid concentration, and the feeding time on the micromixing performance. Segregation index (Xs) was employed to evaluate the micromixing efficiency. It is revealed that Xs decreases with the increase of Reynolds number and feeding time but increases with the increase of acid concentration for both the CTC and LTC. However, the LTC does present a better micromixing performance at various operating conditions than that of the CTC as affirmed by both the experimental and computational fluid dynamics simulation results.

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“…Generally, the products produced in such a system are easily analysed by using the spectrophotometric method. This method have been successfully applied for the assessment of the micromixing efficiency in stirred vessel reactors (Unadkat et al , 2013;and Lemenand et al , 2017) and in high shear mixer (Qin et al , 2017). As the use of the parallel competing reaction system has the advantages of simple control, sensitive measurement through detection of the product concentration and low toxicity of agents, the Villermaux iodide-iodate reaction system is adopted in the present study.…”

Section: Micromixing Characterization Modellingmentioning

confidence: 99%

“…Various kinds of reactors have been developed and investigated in previous studies, aiming to improve the mixing performance. For example, the use of a spinning disk reactor (Jacobsen and Hinrichsen, 2012), impinging jet reactor (Liu et al , 2014), microchannel reactor (Shi et al , 2012), T-shaped reactor (Gao et al , 2015), and high shear mixer (Qin et al , 2017) have all been studied before. The Taylor-Couette (TC) reactor with the features of controllable mean residence time and narrow shear rate distribution has also received a lot of attention.…”

Section: Introductionmentioning

confidence: 99%

Effect of Hydrodynamic Heterogeneity on Micromixing in a Taylor-Couette Flow Reactor with Lobed Inner Cylinder

Liu

Yang

et al. 2020

Preprint

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Effect of hydrodynamic heterogeneity on micromixing intensification in a Taylor-Couette flow reactor (TC) with variable configurations of inner cylinder has been investigated by adoption of a parallel competing iodide-iodate reaction system. Two types of inner cylinder, circular inner cylinder and lobed inner cylinder (CTC and LTC), were used to generate hydrodynamic hydrodynamic heterogeneity for comparison of the micromixing intensification, focusing on the effects of the Reynolds number of the TC reactor, the acid concentration, and the feeding time. The Segregation index (Xs) was employed to evaluate the micromixing efficiency. It was revealed that Xs decreases with the increase of Reynolds number and feeding time but increases with the increase of acid concentration for both the CTC and LTC. However, the LTC does present a better micromixing performance at various operating conditions than that of the CTC as affirmed by both the experimental and computational fluid dynamics (CFD) simulation results.

show abstract

Geometrical improvement of inline high shear mixers to intensify micromixing performance

Cited by 31 publications

References 47 publications

RETRACTED: Numerical Simulation of Micromixing of Particles and Fluids with Galloping Cylinder

RETRACTED: Numerical Simulation of Micromixing of Particles and Fluids with Galloping Cylinder

Effect of hydrodynamic heterogeneity on micromixing intensification in a Taylor–Couette flow reactor with variable configurations of inner cylinder

Effect of Hydrodynamic Heterogeneity on Micromixing in a Taylor-Couette Flow Reactor with Lobed Inner Cylinder

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