Effect of impeller blade curvature on the hydrodynamics and power consumption in a stirred tank
The performance of curved bladed turbines (CBTs) for the agitation of Newtonian fluids in cylindrical tanks is investigated. The efficiency of CBT is compared with that of the standard Rushton turbine. Also, effects of the blade height of the new designed impeller are highlighted. The computational...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Association of the Chemical Engineers of Serbia
2020-01-01
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| Series: | Chemical Industry and Chemical Engineering Quarterly |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1451-9372/2020/1451-93722000003F.pdf |
| _version_ | 1819161166597849088 |
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| author | Foukrach Mohammed Ameur Houari |
| author_facet | Foukrach Mohammed Ameur Houari |
| author_sort | Foukrach Mohammed |
| collection | DOAJ |
| description | The performance of curved bladed turbines (CBTs) for the agitation of Newtonian fluids in cylindrical tanks is investigated. The efficiency of CBT is compared with that of the standard Rushton turbine. Also, effects of the blade height of the new designed impeller are highlighted. The computational fluid dynamics (CFD) study is performed to observe the axial, radial and tangential components of velocities, flow patterns and power consumption. The obtained results revealed that the increase of blade curvature reduces the power consumption. Also, a slight decrease of power number is observed in the turbulent flow regime within unbaffled tanks. In a comparison between the cases studied, the best axial circulation of fluid is given by the impeller with flat blades. The increase of the height of curved blades has generated a stronger tangential flow and enhanced the axial movement of fluid particles, but with further penalty in power input. |
| first_indexed | 2024-12-22T17:08:01Z |
| format | Article |
| id | doaj.art-4ed1ec637b654e96addaedf7ff176cd3 |
| institution | Directory Open Access Journal |
| issn | 1451-9372 2217-7434 |
| language | English |
| last_indexed | 2024-12-22T17:08:01Z |
| publishDate | 2020-01-01 |
| publisher | Association of the Chemical Engineers of Serbia |
| record_format | Article |
| series | Chemical Industry and Chemical Engineering Quarterly |
| spelling | doaj.art-4ed1ec637b654e96addaedf7ff176cd32022-12-21T18:19:08ZengAssociation of the Chemical Engineers of SerbiaChemical Industry and Chemical Engineering Quarterly1451-93722217-74342020-01-0126325926610.2298/CICEQ190804003F1451-93722000003FEffect of impeller blade curvature on the hydrodynamics and power consumption in a stirred tankFoukrach Mohammed0Ameur Houari1Faculty of Mechanical Engineering, USTO-MB, El M’naouar, Oran, AlgeriaDepartment of Technology, University Centre of Naama - Ahmed Salhi (Ctr Univ Naama), AlgeriaThe performance of curved bladed turbines (CBTs) for the agitation of Newtonian fluids in cylindrical tanks is investigated. The efficiency of CBT is compared with that of the standard Rushton turbine. Also, effects of the blade height of the new designed impeller are highlighted. The computational fluid dynamics (CFD) study is performed to observe the axial, radial and tangential components of velocities, flow patterns and power consumption. The obtained results revealed that the increase of blade curvature reduces the power consumption. Also, a slight decrease of power number is observed in the turbulent flow regime within unbaffled tanks. In a comparison between the cases studied, the best axial circulation of fluid is given by the impeller with flat blades. The increase of the height of curved blades has generated a stronger tangential flow and enhanced the axial movement of fluid particles, but with further penalty in power input.http://www.doiserbia.nb.rs/img/doi/1451-9372/2020/1451-93722000003F.pdfmechanical agitationcurved bladed impellercylindrical tankhydrodynamicspower consumption |
| spellingShingle | Foukrach Mohammed Ameur Houari Effect of impeller blade curvature on the hydrodynamics and power consumption in a stirred tank Chemical Industry and Chemical Engineering Quarterly mechanical agitation curved bladed impeller cylindrical tank hydrodynamics power consumption |
| title | Effect of impeller blade curvature on the hydrodynamics and power consumption in a stirred tank |
| title_full | Effect of impeller blade curvature on the hydrodynamics and power consumption in a stirred tank |
| title_fullStr | Effect of impeller blade curvature on the hydrodynamics and power consumption in a stirred tank |
| title_full_unstemmed | Effect of impeller blade curvature on the hydrodynamics and power consumption in a stirred tank |
| title_short | Effect of impeller blade curvature on the hydrodynamics and power consumption in a stirred tank |
| title_sort | effect of impeller blade curvature on the hydrodynamics and power consumption in a stirred tank |
| topic | mechanical agitation curved bladed impeller cylindrical tank hydrodynamics power consumption |
| url | http://www.doiserbia.nb.rs/img/doi/1451-9372/2020/1451-93722000003F.pdf |
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