Measurement of droplet coalescence in a mixing tank
- Yubin Cai,
- Zhongshu Yang,
- Yijing Jin,
- Shan Jing,
- Wenjie Lan,
- Shaowei Li
Yubin Cai
Tsinghua University Institute of Nuclear and New Energy Technology
Author ProfileZhongshu Yang
Tsinghua University Institute of Nuclear and New Energy Technology
Author ProfileYijing Jin
Tsinghua University Institute of Nuclear and New Energy Technology
Author ProfileWenjie Lan
China University of Petroleum Beijing College of Chemical Engineering
Author ProfileShaowei Li
Tsinghua University Institute of Nuclear and New Energy Technology
Author ProfileAbstract
It is in urgent requirement to directly measure the droplet coalescence
frequency for the application of the population balance model. In this
study, a method was firstly developed to directly measure the droplet
coalescence frequency in turbulent flow field by using a specially
designed mixing tank and a high-speed camera. The effects of the
rotating speed and holdup fraction on the droplet coalescence frequency
was quantitatively investigated. The increasing of rotation speed
promotes first and then inhibits the coalescence, while the holdup
fraction has little influence on the coalescence frequency function. The
droplet collision frequency was also counted and the coalescence
efficiency was calculated. The models in literature were tested with our
experimental data and were found failing to predict the coalescence
frequency in the stirring tank. Empirical correlations were finally
proposed and good agreement was found between the prediction results and
the experimental data.14 Jun 2023Submitted to AIChE Journal 18 Jun 2023Submission Checks Completed
18 Jun 2023Assigned to Editor
18 Jun 2023Review(s) Completed, Editorial Evaluation Pending
02 Jul 2023Reviewer(s) Assigned
14 Aug 2023Editorial Decision: Revise Minor
27 Aug 20231st Revision Received
31 Aug 2023Submission Checks Completed
31 Aug 2023Assigned to Editor
31 Aug 2023Review(s) Completed, Editorial Evaluation Pending
01 Sep 2023Reviewer(s) Assigned
06 Oct 2023Editorial Decision: Accept