CFD simulation and structure optimization of the industry-scale microfluidization interactive chamber

Authors

MEI Liren, State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi 330047, China;International Institute of Food Innovation Co., Ltd., Nanchang University, Nanchang, Jiangxi 330047, China;School of Advanced Manufacturing, Nanchang University, Nanchang, Jiangxi 330031, China
XU Keping, State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi 330047, China
AI Fanrong, School of Advanced Manufacturing, Nanchang University, Nanchang, Jiangxi 330031, China
DAI Taotao, State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi 330047, China;International Institute of Food Innovation Co., Ltd., Nanchang University, Nanchang, Jiangxi 330047, China
CHEN Jun, State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi 330047, China;International Institute of Food Innovation Co., Ltd., Nanchang University, Nanchang, Jiangxi 330047, ChinaFollow

Corresponding Author(s)

陈军（1986—），男，南昌大学研究员，博士。E-mail：chen-jun1986@hotmail.com

Abstract

Objective: Solving the problems of high feed requirement, low flow rate and poor treatment effect of industrial-scale microfluidizer （ISM） in practical application. Methods: Combining CFD-PBM simulation and emulsion preparation test, four kinds of interactive chambers were optimized, and the final shape was obtained by size optimization. Results: Four kinds of interactive chambers had larger flow rate and hole diameter than the original interactive chamber. The effect of particle size reduction was T-impact type ＞ T double impact type ＞ cross impact type ＞ two shunt type. Shear force mainly existed in the shunt zone, impact force mainly existed in the impact zone, shear force and cavitation force mainly existed in the jet zone. Turbulent motion existed in the above three zones. The geometric parameters of T-shaped impact reaction chamber were optimized to obtain the final reaction chamber model. The minimum hole diameter was 0.7 mm, and the flow rate was 878 L/h at 120 MPa. The emulsion partical size prepared by the optimized chamber was 249 nm, which was in good agreement with the simulation results. Conclusion: T-impact type interactive chamber has the advantage of particle size reduction, and the impact force is the main factor.

Publication Date

1-30-2024

First Page

73

Last Page

81,89

DOI

10.13652/j.spjx.1003.5788.2023.81050

Recommended Citation

Liren, MEI; Keping, XU; Fanrong, AI; Taotao, DAI; and Jun, CHEN (2024) "CFD simulation and structure optimization of the industry-scale microfluidization interactive chamber," Food and Machinery: Vol. 40: Iss. 1, Article 11.
DOI: 10.13652/j.spjx.1003.5788.2023.81050
Available at: https://www.ifoodmm.cn/journal/vol40/iss1/11

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