2012 Fiscal Year Final Research Report
Development of general secondary nucleation model including effects of impeller shape and solution condition in industrial crystallizer
| Project/Area Number |
23760147
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Fluid engineering
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| Research Institution | Yokohama National University |
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Principal Investigator |
ISUMI Ryuta 横浜国立大学, 大学院・工学研究院, 特別研究教員 (40334635)
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| Project Period (FY) |
2011 – 2012
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| Keywords | 撹拌・混合 / 晶析 / CFD / 乱流 / 結晶摩耗 / 一次核発生 / 二次核発生 / エロ-ジョン |
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| Research Abstract |
The resuls of this study summarized as follows; (i) Using Computational Fluid Dynamics (CFD) coupled with the Lagrangian simulation of crystal particle motion, the relation between particle rising behavior from a vessel bottom and liquid flow was clarified. And the particle collision behaviors with impeller blades were quantified. (ii) A non-intrusive on-line measurements method for the initial dynamics of a series of primary nucleation based on the detection of laser light scattering induced by small crystal particles was developed. (iii) A population balance simulation method of crystallization including crystal attrition phenomenon caused by crystal particle collision with impeller blades was developed.
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