Pitched Blade Turbine Efficiency at Particle Suspension
Mixing suspensions is a very important hydraulic operation. The pitched six-blade turbine is a widely-used axial-flow impeller. This paper deals with effect relative impeller size and particle content on theefficiency of a pitched six-blade turbine at particle suspension. Two pitched six-blade turbi...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
CTU Central Library
2010-01-01
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| Series: | Acta Polytechnica |
| Subjects: | |
| Online Access: | https://ojs.cvut.cz/ojs/index.php/ap/article/view/1281 |
| _version_ | 1818960499912474624 |
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| author | D. Ceres T. Jirout F. Rieger |
| author_facet | D. Ceres T. Jirout F. Rieger |
| author_sort | D. Ceres |
| collection | DOAJ |
| description | Mixing suspensions is a very important hydraulic operation. The pitched six-blade turbine is a widely-used axial-flow impeller. This paper deals with effect relative impeller size and particle content on theefficiency of a pitched six-blade turbine at particle suspension. Two pitched six-blade turbines were used in model measurements of just suspension impeller speed. The ratios of the vessel to agitator diameter <em>D/d</em> were 3 and 4.5. The measurements were carried out in a dish-bottomed vessel 300 mm in diameter. The just suspension impeller speeds were measured using an electrochemical method, and were checked visually. A 2.5 % NaCl water solution was used as the liquid phase, and glass particles with four equivalent diameters between 0.18 and 0.89 mmand volumetric concentration from 2.5 % to 40% were usedasthesolid phase. The criterion values <em>π<sub>s</sub>=P<sub>o</sub>√Fr'<sup>3</sup>(d/D)<sup>7</sup></em> were calculated from the particle suspension and power consumption measurements. The dependencies of <em>π<sub>s</sub></em> on particle content <em>c<sub>v</sub></em> show that larger agitators are more efficient for higher particle content. |
| first_indexed | 2024-12-20T11:58:31Z |
| format | Article |
| id | doaj.art-3791a677a7174468a4bbf5a108fab960 |
| institution | Directory Open Access Journal |
| issn | 1210-2709 1805-2363 |
| language | English |
| last_indexed | 2024-12-20T11:58:31Z |
| publishDate | 2010-01-01 |
| publisher | CTU Central Library |
| record_format | Article |
| series | Acta Polytechnica |
| spelling | doaj.art-3791a677a7174468a4bbf5a108fab9602022-12-21T19:41:35ZengCTU Central LibraryActa Polytechnica1210-27091805-23632010-01-015061281Pitched Blade Turbine Efficiency at Particle SuspensionD. CeresT. JiroutF. RiegerMixing suspensions is a very important hydraulic operation. The pitched six-blade turbine is a widely-used axial-flow impeller. This paper deals with effect relative impeller size and particle content on theefficiency of a pitched six-blade turbine at particle suspension. Two pitched six-blade turbines were used in model measurements of just suspension impeller speed. The ratios of the vessel to agitator diameter <em>D/d</em> were 3 and 4.5. The measurements were carried out in a dish-bottomed vessel 300 mm in diameter. The just suspension impeller speeds were measured using an electrochemical method, and were checked visually. A 2.5 % NaCl water solution was used as the liquid phase, and glass particles with four equivalent diameters between 0.18 and 0.89 mmand volumetric concentration from 2.5 % to 40% were usedasthesolid phase. The criterion values <em>π<sub>s</sub>=P<sub>o</sub>√Fr'<sup>3</sup>(d/D)<sup>7</sup></em> were calculated from the particle suspension and power consumption measurements. The dependencies of <em>π<sub>s</sub></em> on particle content <em>c<sub>v</sub></em> show that larger agitators are more efficient for higher particle content.https://ojs.cvut.cz/ojs/index.php/ap/article/view/1281Pitched blade turbineparticle suspensionagitator efficiency |
| spellingShingle | D. Ceres T. Jirout F. Rieger Pitched Blade Turbine Efficiency at Particle Suspension Acta Polytechnica Pitched blade turbine particle suspension agitator efficiency |
| title | Pitched Blade Turbine Efficiency at Particle Suspension |
| title_full | Pitched Blade Turbine Efficiency at Particle Suspension |
| title_fullStr | Pitched Blade Turbine Efficiency at Particle Suspension |
| title_full_unstemmed | Pitched Blade Turbine Efficiency at Particle Suspension |
| title_short | Pitched Blade Turbine Efficiency at Particle Suspension |
| title_sort | pitched blade turbine efficiency at particle suspension |
| topic | Pitched blade turbine particle suspension agitator efficiency |
| url | https://ojs.cvut.cz/ojs/index.php/ap/article/view/1281 |
| work_keys_str_mv | AT dceres pitchedbladeturbineefficiencyatparticlesuspension AT tjirout pitchedbladeturbineefficiencyatparticlesuspension AT frieger pitchedbladeturbineefficiencyatparticlesuspension |