Application of Theoretical and Experimental Findings for Optimization of Mixing Processes and Equipment
| Autor: | Tomáš Jirout, Dita Jiroutová |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Geometric configuration pumping capacity Bioengineering Baffle 02 engineering and technology lcsh:Chemical technology Homogenization (chemistry) Agitator lcsh:Chemistry Impeller agitator 020401 chemical engineering impeller efficiency mixing Chemical Engineering (miscellaneous) lcsh:TP1-1185 0204 chemical engineering blending Process Chemistry and Technology particle suspension Particle suspension Mechanics 021001 nanoscience & nanotechnology lcsh:QD1-999 0210 nano-technology Dimensionless quantity |
| Zdroj: | Processes, Vol 8, Iss 955, p 955 (2020) |
| ISSN: | 2227-9717 |
| DOI: | 10.3390/pr8080955 |
| Popis: | The homogenization of the agitated batch and ensuring the suspension of particles are the most frequently encountered requirements in terms of mixing applications. These operations are affected by the flow of the agitated batch. The geometrical parameters of the mixing system, especially the shape of the agitator blade, affect flow and circulation in the agitated batch. The present work provides a general description of the most common processes in the agitated batch (blending and particle suspension), hydrodynamic parameters (flow in agitated batches, pumping and circulation capacity of impellers) and the geometrical configurations of the mixing equipment (shape of vessel, baffle and impeller, and their mutual arrangement) that influence the process. The dimensionless process characteristics of the agitator were derived by theoretical analysis. These characteristics were applied to evaluate an extensive set of experimental data with various geometric configurations of the mixing equipment. This study shows how the flow in the agitated batch, caused by the pumping and circulating effects of the agitators, affects the parameters and energy efficiency of these processes, depending on the geometric configuration of the mixing equipment. Moreover, the benefits of the hydrofoil impellers used for these mixing processes are presented. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|