A numerical study on orthokinetic agglomeration in stirred tanks
A numerical study on the scale-up behaviour of orthokinetic agglomeration in stirred tanks is presented. Large Eddy flow simulations were performed to obtain an accurate description of the turbulent flow encountered in stirred vessels, equipped with either a Rushton or a pitched blade turbine. Simul...
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| Veröffentlicht in: | Powder technology 2003-02, Vol.130 (1), p.169-173 |
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| creator | Hollander, E.D Derksen, J.J Kramer, H.M.J Van Rosmalen, G.M Van den Akker, H.E.A |
| description | A numerical study on the scale-up behaviour of orthokinetic agglomeration in stirred tanks is presented. Large Eddy flow simulations were performed to obtain an accurate description of the turbulent flow encountered in stirred vessels, equipped with either a Rushton or a pitched blade turbine. Simultaneously, the convection-reaction equation for the particle number concentration is solved. Equal resolutions were used for the flow simulations and the particle concentration equation. Agglomeration was incorporated by making use of the nonlinear agglomeration model proposed by Mumtaz et al. [Trans. Inst. Chem. Eng. 75 (1997) 152]. Reactor performance for vessel sizes in the range of 1 to 10
000 l was simulated. Three scale-up rules (viz. constant
Re number, specific power input, and impeller tip speed) were investigated. It was found that impeller shape, vessel size, and
Re number have a profound effect on reactor performance. |
| doi_str_mv | 10.1016/S0032-5910(02)00261-9 |
| format | Article |
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000 l was simulated. Three scale-up rules (viz. constant
Re number, specific power input, and impeller tip speed) were investigated. It was found that impeller shape, vessel size, and
Re number have a profound effect on reactor performance.</description><subject>Agglomeration</subject><subject>Applied sciences</subject><subject>Chemical engineering</subject><subject>Crystallization, leaching, miscellaneous separations</subject><subject>Exact sciences and technology</subject><subject>Modelling</subject><subject>Orthokinetic</subject><subject>Stirred tanks</subject><subject>Turbulence</subject><issn>0032-5910</issn><issn>1873-328X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><recordid>eNqFkE1LAzEQhoMoWKs_QdiLoofVycd2k5OW4hcUPKjgLWSz2Rq7zdYkK_Tfm36gR5nDHOZ5Z5gHoVMMVxjw6PoFgJK8EBgugFwCkBHOxR4aYF7SnBL-vo8Gv8ghOgrhEwBGFMMA3Y4z1y-Mt1q1WYh9vco6l3U-fnRz60y0OlOzWdslREWbRtYlzHpv6iwqNw_H6KBRbTAnuz5Eb_d3r5PHfPr88DQZT3PNoIi5qhhXuKhoU5OCE1alIhxzpiujBNNKF0RzYIIIXo5YXSlaloXgjArBOGvoEJ1v9y5999WbEOXCBm3aVjnT9UGSkgsmgCew2ILadyF408iltwvlVxKDXPuSG19yLUMCkRtfUqTc2e6ACklG45XTNvyFWclKzGjibracSd9-W-Nl0NY4bWrrjY6y7uw_l34AsqJ-TQ</recordid><startdate>20030219</startdate><enddate>20030219</enddate><creator>Hollander, E.D</creator><creator>Derksen, J.J</creator><creator>Kramer, H.M.J</creator><creator>Van Rosmalen, G.M</creator><creator>Van den Akker, H.E.A</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope></search><sort><creationdate>20030219</creationdate><title>A numerical study on orthokinetic agglomeration in stirred tanks</title><author>Hollander, E.D ; Derksen, J.J ; Kramer, H.M.J ; Van Rosmalen, G.M ; Van den Akker, H.E.A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c405t-ab48a15b3fd25824b4b428184cbea94cac52c8049298764dba3775984399484f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><topic>Agglomeration</topic><topic>Applied sciences</topic><topic>Chemical engineering</topic><topic>Crystallization, leaching, miscellaneous separations</topic><topic>Exact sciences and technology</topic><topic>Modelling</topic><topic>Orthokinetic</topic><topic>Stirred tanks</topic><topic>Turbulence</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hollander, E.D</creatorcontrib><creatorcontrib>Derksen, J.J</creatorcontrib><creatorcontrib>Kramer, H.M.J</creatorcontrib><creatorcontrib>Van Rosmalen, G.M</creatorcontrib><creatorcontrib>Van den Akker, H.E.A</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><jtitle>Powder technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hollander, E.D</au><au>Derksen, J.J</au><au>Kramer, H.M.J</au><au>Van Rosmalen, G.M</au><au>Van den Akker, H.E.A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A numerical study on orthokinetic agglomeration in stirred tanks</atitle><jtitle>Powder technology</jtitle><date>2003-02-19</date><risdate>2003</risdate><volume>130</volume><issue>1</issue><spage>169</spage><epage>173</epage><pages>169-173</pages><issn>0032-5910</issn><eissn>1873-328X</eissn><coden>POTEBX</coden><abstract>A numerical study on the scale-up behaviour of orthokinetic agglomeration in stirred tanks is presented. Large Eddy flow simulations were performed to obtain an accurate description of the turbulent flow encountered in stirred vessels, equipped with either a Rushton or a pitched blade turbine. Simultaneously, the convection-reaction equation for the particle number concentration is solved. Equal resolutions were used for the flow simulations and the particle concentration equation. Agglomeration was incorporated by making use of the nonlinear agglomeration model proposed by Mumtaz et al. [Trans. Inst. Chem. Eng. 75 (1997) 152]. Reactor performance for vessel sizes in the range of 1 to 10
000 l was simulated. Three scale-up rules (viz. constant
Re number, specific power input, and impeller tip speed) were investigated. It was found that impeller shape, vessel size, and
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| source | Elsevier ScienceDirect Journals |
| subjects | Agglomeration Applied sciences Chemical engineering Crystallization, leaching, miscellaneous separations Exact sciences and technology Modelling Orthokinetic Stirred tanks Turbulence |
| title | A numerical study on orthokinetic agglomeration in stirred tanks |
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