Effect of bubble morphology and behavior on power consumption in non-Newtonian fluids’ aeration process

Xiemin Liu; Jing Wan; Jinnan Sun; Lin Zhang; Feng Zhang; Zhibing Zhang; Xinyao Li; Zheng Zhou

doi:10.1016/j.cjche.2023.09.003

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Effect of bubble morphology and behavior on power consumption in non-Newtonian fluids’ aeration process

Full Length Article | Updated：2026-01-06

- Effect of bubble morphology and behavior on power consumption in non-Newtonian fluids’ aeration process
- Chinese Journal of Chemical Engineering Vol. 65, Issue 1, Pages: 243-254(2024)
- Affiliations：
  
  1. Key Laboratory of Mesoscopic Chemistry of Ministry of Education (MOE), School of Chemistry and Chemical Engineering, Nanjing University,Nanjing,China,210023
  2. Dalian Research Institute of Petroleum and Petrochemicals, SINOPEC,Dalian,China,116045
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2023.09.003
  CLC：
- Published：2024
- Accepted：
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Xiemin Liu, Jing Wan, Jinnan Sun, Lin Zhang, Feng Zhang, Zhibing Zhang, Xinyao Li, Zheng Zhou. Effect of bubble morphology and behavior on power consumption in non-Newtonian fluids’ aeration process[J]. Chinese Journal of Chemical Engineering, 2024, 65(1): 243-254.
DOI：

Xiemin Liu, Jing Wan, Jinnan Sun, Lin Zhang, Feng Zhang, Zhibing Zhang, Xinyao Li, Zheng Zhou. Effect of bubble morphology and behavior on power consumption in non-Newtonian fluids’ aeration process[J]. Chinese Journal of Chemical Engineering, 2024, 65(1): 243-254. DOI： 10.1016/j.cjche.2023.09.003.

摘要

Abstract

Due to a prolonged operation time and low mass transfer efficiency

the primary challenge in the aeration process of non-Newtonian fluids is the high energy consumption

which is closely related to the form and rate of impeller

ventilation

rheological properties and bubble morphology in the reactor. In this perspective

through optimal computational fluid dynamics models and experiments

the relationship between power consumption

volumetric mass transfer rate (

) and initial bubble size (

) was constructed to establish an efficient operation mode for the aeration process of non-Newtonian fluids. It was found that reducing the

could significantly increase the oxygen mass transfer rate

resulting in an obvious decrease in the ventilation volume and impeller speed. When d

was regulated within 2-5 mm

an optimal

could be achieved

and 21% of power consumption could be saved

compared to the case of bubbles with a diameter of 10 mm.

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