|
1
|
Fan Y, Li C, Wang S, Wang H, Wei Y, Xu J, Xiao Q. Enhancement of mixing efficiency in mechanical stirring reactors via chaotic stirring techniques: Application to the treatment of zinc-containing solid waste. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2021.117367] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
|
2
|
Fan Y, Wang S, Wang H, Xu J, Xiao Q, Wei Y. Formation mechanism and chaotic reinforcement elimination of the mechanical stirring isolated mixed region. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2021. [DOI: 10.1515/ijcre-2020-0213] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The isolated mixed region (IMR) is gradually formed during stirring and reduces the mixing efficiency. The unsteady-state formation process of the IMR was modeled and its formation mechanism was analyzed. The rotating frequency of the impeller was optimized using the chaos mathematical theory to improve the stirring efficiency without increasing the power consumption. The calculated results demonstrate that the IMR is a coherent structure, and its formation process is based on the free shear effect of the mixed layer. The chaotic stirring method can accelerate the momentum dissipation process by 37% by eliminating the IMR, and increase the speed by up to 31%. Therefore, chaotic mixing can eliminate the IMR in a shorter time and lower the power consumption.
Collapse
Affiliation(s)
- Yuewei Fan
- Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction , Ministry of Education, Kunming , China
- National & Local Joint Engineering Research Center of Energy Saving and Environmental Protection Technology in Metallurgy and Chemical Engineering Industry, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology , Kunming 650093 , Yunnan , China
| | - Shibo Wang
- Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction , Ministry of Education, Kunming , China
- National & Local Joint Engineering Research Center of Energy Saving and Environmental Protection Technology in Metallurgy and Chemical Engineering Industry, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology , Kunming 650093 , Yunnan , China
| | - Hua Wang
- Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction , Ministry of Education, Kunming , China
- National & Local Joint Engineering Research Center of Energy Saving and Environmental Protection Technology in Metallurgy and Chemical Engineering Industry, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology , Kunming 650093 , Yunnan , China
| | - Jianxin Xu
- Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction , Ministry of Education, Kunming , China
- National & Local Joint Engineering Research Center of Energy Saving and Environmental Protection Technology in Metallurgy and Chemical Engineering Industry, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology , Kunming 650093 , Yunnan , China
| | - Qingtai Xiao
- Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction , Ministry of Education, Kunming , China
- National & Local Joint Engineering Research Center of Energy Saving and Environmental Protection Technology in Metallurgy and Chemical Engineering Industry, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology , Kunming 650093 , Yunnan , China
| | - Yonggang Wei
- Engineering Research Center of Metallurgical Energy Conservation and Emission Reduction , Ministry of Education, Kunming , China
- National & Local Joint Engineering Research Center of Energy Saving and Environmental Protection Technology in Metallurgy and Chemical Engineering Industry, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology , Kunming 650093 , Yunnan , China
| |
Collapse
|