Effect of liquid viscosity on mixing times in bubble columns
- 作者: Plais C.1, Augier F.1
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隶属关系:
- IFP Energies nouvelles, Process Design and Modeling Division
- 期: 卷 50, 编号 6 (2016)
- 页面: 969-974
- 栏目: Proceedings of XXV European Conference on Mixing “MIXING 15”
- URL: https://journals.rcsi.science/0040-5795/article/view/171221
- DOI: https://doi.org/10.1134/S0040579516060142
- ID: 171221
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Mixing is a key parameter in bioreactors studies as it can intensify mass and heat transfer and can affect biological reactions. In the present work, mixing times are investigated in a 42 L vessel with water and various polyethylene glycol and carboxymethyl cellulose solutions. To improve the physical description of dispersion induced by bubbles, the first step of our study was to characterize dispersion of tracers inside bubbly flows at various gas volume fractions for different liquid viscosities. A colorimetric technique is used in order to record mixing times corresponding to 95 or 80% of homogeneity. Bubble size is also measured at the same time by image processing. It clearly appears that the liquid viscosity impacts the mixing time value, the bubble size and the tracer propagation.
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作者简介
Cécile Plais
IFP Energies nouvelles, Process Design and Modeling Division
编辑信件的主要联系方式.
Email: cecile.plais@ifpen.fr
法国, Rond-point de l’échangeur de Solaize, BP3, Solaize, 69360
Frédéric Augier
IFP Energies nouvelles, Process Design and Modeling Division
Email: cecile.plais@ifpen.fr
法国, Rond-point de l’échangeur de Solaize, BP3, Solaize, 69360
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