Optimization of Liquid?Liquid Mixing in a Novel Mixer Based on Hybrid SVR-DE Model

Hao Wang, Peijian Zhou (), Ting Chen, Jiegang Mou, Jiayi Cui and Huiming Zhang
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Hao Wang: College of Metrology & Measurement Engineering, China Jiliang University, Hangzhou 310018, China
Peijian Zhou: College of Metrology & Measurement Engineering, China Jiliang University, Hangzhou 310018, China
Ting Chen: School of Optical Information and Energy Engineering, Wuhan Institute of Technology, Wuhan 430205, China
Jiegang Mou: College of Metrology & Measurement Engineering, China Jiliang University, Hangzhou 310018, China
Jiayi Cui: College of Metrology & Measurement Engineering, China Jiliang University, Hangzhou 310018, China
Huiming Zhang: Dezhou Keyuan Water Supplying Engineering Development Co., Ltd., Dezhou 253000, China

Energies, 2023, vol. 16, issue 4, 1-17

Abstract: To solve the problem of evenly mixing flocculant and sewage, a new type of two-chamber mechanical pipe mixer was numerically calculated and its working principle was studied by means of the internal flow field. The single factor numerical simulation and analysis of some of the structural parameters in the mixer were carried out to determine the influence of different parameters on the results. Latin hypercube sampling was used to design 100 sets of test tables for the four variables of the branch pipe diameter, sewage flow rate, the installation height of the impeller, and the angle of the deflector. The results were optimized using the SVR-DE algorithm. After optimization, the variation coefficient of export flocculant mixing uniformity was 16.02%, which was increased by 74.94% compared with the initial 63.921%. The power consumption of the impeller was reduced by 8.30%. The concentration curves of the flocculant at different positions of the outlet tube could quickly converge to the target value.

Keywords: mixer; numerical calculation; support vector regression; differential evolution (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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