CFD Simulation of Solid Suspension for a Liquid–Solid Industrial Stirred Reactor
The present study examines the possibility of using an industrial stirred chemical reactor, originally employed for liquid–liquid mixtures, for operating with two-phase liquid–solid suspensions. It is critical when obtaining a high-quality chemical product that the solid phase remains suspended in t...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-06-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/11/12/5705 |
| _version_ | 1797529520890183680 |
|---|---|
| author | Adrian Stuparu Romeo Susan-Resiga Alin Bosioc |
| author_facet | Adrian Stuparu Romeo Susan-Resiga Alin Bosioc |
| author_sort | Adrian Stuparu |
| collection | DOAJ |
| description | The present study examines the possibility of using an industrial stirred chemical reactor, originally employed for liquid–liquid mixtures, for operating with two-phase liquid–solid suspensions. It is critical when obtaining a high-quality chemical product that the solid phase remains suspended in the liquid phase long enough that the chemical reaction takes place. The impeller was designed for the preparation of a chemical product with a prescribed composition. The present study aims at finding, using a numerical simulation analysis, if the performance of the original impeller is suitable for obtaining a new chemical product with a different composition. The Eulerian multiphase model was employed along with the renormalization (RNG) <i>k</i>-ε turbulence model to simulate liquid–solid flow with a free surface in a stirred tank. A sliding-mesh approach was used to model the impeller rotation with the commercial CFD code, FLUENT. The results obtained underline that 25% to 40% of the solid phase is sedimented on the lower part of the reactor, depending on the initial conditions. It results that the impeller does not perform as needed; hence, the suspension time of the solid phase is not long enough for the chemical reaction to be properly completed. |
| first_indexed | 2024-03-10T10:15:02Z |
| format | Article |
| id | doaj.art-c4bfed9990d14f9baa638e66fd467213 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T10:15:02Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-c4bfed9990d14f9baa638e66fd4672132023-11-22T00:53:39ZengMDPI AGApplied Sciences2076-34172021-06-011112570510.3390/app11125705CFD Simulation of Solid Suspension for a Liquid–Solid Industrial Stirred ReactorAdrian Stuparu0Romeo Susan-Resiga1Alin Bosioc2MMUT, Faculty of Mechanical Engineering, Politehnica University Timisoara, 300006 Timisoara, RomaniaMMUT, Faculty of Mechanical Engineering, Politehnica University Timisoara, 300006 Timisoara, RomaniaMMUT, Faculty of Mechanical Engineering, Politehnica University Timisoara, 300006 Timisoara, RomaniaThe present study examines the possibility of using an industrial stirred chemical reactor, originally employed for liquid–liquid mixtures, for operating with two-phase liquid–solid suspensions. It is critical when obtaining a high-quality chemical product that the solid phase remains suspended in the liquid phase long enough that the chemical reaction takes place. The impeller was designed for the preparation of a chemical product with a prescribed composition. The present study aims at finding, using a numerical simulation analysis, if the performance of the original impeller is suitable for obtaining a new chemical product with a different composition. The Eulerian multiphase model was employed along with the renormalization (RNG) <i>k</i>-ε turbulence model to simulate liquid–solid flow with a free surface in a stirred tank. A sliding-mesh approach was used to model the impeller rotation with the commercial CFD code, FLUENT. The results obtained underline that 25% to 40% of the solid phase is sedimented on the lower part of the reactor, depending on the initial conditions. It results that the impeller does not perform as needed; hence, the suspension time of the solid phase is not long enough for the chemical reaction to be properly completed.https://www.mdpi.com/2076-3417/11/12/5705stirred tankCFDthree-phase flowliquid–solidEulerian |
| spellingShingle | Adrian Stuparu Romeo Susan-Resiga Alin Bosioc CFD Simulation of Solid Suspension for a Liquid–Solid Industrial Stirred Reactor Applied Sciences stirred tank CFD three-phase flow liquid–solid Eulerian |
| title | CFD Simulation of Solid Suspension for a Liquid–Solid Industrial Stirred Reactor |
| title_full | CFD Simulation of Solid Suspension for a Liquid–Solid Industrial Stirred Reactor |
| title_fullStr | CFD Simulation of Solid Suspension for a Liquid–Solid Industrial Stirred Reactor |
| title_full_unstemmed | CFD Simulation of Solid Suspension for a Liquid–Solid Industrial Stirred Reactor |
| title_short | CFD Simulation of Solid Suspension for a Liquid–Solid Industrial Stirred Reactor |
| title_sort | cfd simulation of solid suspension for a liquid solid industrial stirred reactor |
| topic | stirred tank CFD three-phase flow liquid–solid Eulerian |
| url | https://www.mdpi.com/2076-3417/11/12/5705 |
| work_keys_str_mv | AT adrianstuparu cfdsimulationofsolidsuspensionforaliquidsolidindustrialstirredreactor AT romeosusanresiga cfdsimulationofsolidsuspensionforaliquidsolidindustrialstirredreactor AT alinbosioc cfdsimulationofsolidsuspensionforaliquidsolidindustrialstirredreactor |