Comparative analysis of different static mixers performance by CFD technique: An innovative mixer

doi:10.1016/j.cjche.2019.09.004

Abstract

Abstract: The flow and mixing behavior of two miscible liquids has been studied in an innovative static mixer by using CFD, with Reynolds numbers ranging from 20 to 160. The performance of the new mixer is compared with those of Kenics, SMX, and Komax static mixers. The pressure drop ratio (Z-factor), coefficient of variation (CoV), and extensional efficiency (α) features have been used to evaluate power consumption, distributive mixing, and dispersive mixing performances, respectively, in all mixers. The model is firstly validated based on experimental data measured for the pressure drop ratio and the coefficient of variation. CFD results are consistent with measured data and those obtained by available correlations in the literature. The new mixer shows a superior mixing performance compared to the other mixers.

Key words: CFD, New static mixer, Coefficient of variation, Pressure drop ratio

摘要： The flow and mixing behavior of two miscible liquids has been studied in an innovative static mixer by using CFD, with Reynolds numbers ranging from 20 to 160. The performance of the new mixer is compared with those of Kenics, SMX, and Komax static mixers. The pressure drop ratio (Z-factor), coefficient of variation (CoV), and extensional efficiency (α) features have been used to evaluate power consumption, distributive mixing, and dispersive mixing performances, respectively, in all mixers. The model is firstly validated based on experimental data measured for the pressure drop ratio and the coefficient of variation. CFD results are consistent with measured data and those obtained by available correlations in the literature. The new mixer shows a superior mixing performance compared to the other mixers.

关键词: CFD, New static mixer, Coefficient of variation, Pressure drop ratio

M. M. Haddadi, S. H. Hosseini, D. Rashtchian, Martin Olazar. Comparative analysis of different static mixers performance by CFD technique: An innovative mixer[J]. Chinese Journal of Chemical Engineering, 2020, 28(3): 672-684.

M. M. Haddadi, S. H. Hosseini, D. Rashtchian, Martin Olazar. Comparative analysis of different static mixers performance by CFD technique: An innovative mixer[J]. 中国化学工程学报, 2020, 28(3): 672-684.

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