Computations of Fluid Dynamics of a 50 MWe Circulating Fluidized Bed Combustor
Gas−particle two-phase turbulent flows are numerically studied in a 50 MWe circulating fluidized bed combustor. The dense flow of particles is modeled by the frictional stress models adopted from solid mechanics theory, and the dilute flow in the so-called rapid granular flow regime is modeled from...
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| Veröffentlicht in: | Industrial & engineering chemistry research 2010-06, Vol.49 (11), p.5132-5140 |
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| creator | Guodong, Liu Dan, Sun Huilin, Lu Bouillard, Jacques Yinghua, Bai Shuai, Wang |
| description | Gas−particle two-phase turbulent flows are numerically studied in a 50 MWe circulating fluidized bed combustor. The dense flow of particles is modeled by the frictional stress models adopted from solid mechanics theory, and the dilute flow in the so-called rapid granular flow regime is modeled from the kinetic theory of granular flow. At low concentrations the viscosity due to the effect of the presence of particles is modeled by means of a semiempirical viscosity for fluidized catalytic cracking particles. The distribution of the velocity and concentration of particles in a circulating fluidized bed combustor is predicted. Simulations indicate that the dense regime with a high concentration of particles is in the bottom part and the dilute regime with a low concentration in the upper part of the furnace. The effect of secondary air on the flow behavior is analyzed, and the penetration length of the secondary air jet is computed in a 50 MWe circulating fluidized bed combustor. |
| doi_str_mv | 10.1021/ie901103t |
| format | Article |
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The dense flow of particles is modeled by the frictional stress models adopted from solid mechanics theory, and the dilute flow in the so-called rapid granular flow regime is modeled from the kinetic theory of granular flow. At low concentrations the viscosity due to the effect of the presence of particles is modeled by means of a semiempirical viscosity for fluidized catalytic cracking particles. The distribution of the velocity and concentration of particles in a circulating fluidized bed combustor is predicted. Simulations indicate that the dense regime with a high concentration of particles is in the bottom part and the dilute regime with a low concentration in the upper part of the furnace. The effect of secondary air on the flow behavior is analyzed, and the penetration length of the secondary air jet is computed in a 50 MWe circulating fluidized bed combustor.</description><identifier>ISSN: 0888-5885</identifier><identifier>EISSN: 1520-5045</identifier><identifier>DOI: 10.1021/ie901103t</identifier><identifier>CODEN: IECRED</identifier><language>eng</language><publisher>Washington, DC: American Chemical Society</publisher><subject>Applied sciences ; Chemical engineering ; Environmental Sciences ; Exact sciences and technology ; Fluidization ; General Research ; Hydrodynamics of contact apparatus</subject><ispartof>Industrial & engineering chemistry research, 2010-06, Vol.49 (11), p.5132-5140</ispartof><rights>Copyright © 2009 American Chemical Society</rights><rights>2015 INIST-CNRS</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a326t-77b826826cf718978472178fa15db1dbe897bfef60e3ef8c3980cc792920ae8d3</citedby><cites>FETCH-LOGICAL-a326t-77b826826cf718978472178fa15db1dbe897bfef60e3ef8c3980cc792920ae8d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/ie901103t$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/ie901103t$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>230,314,776,780,881,2752,27053,27901,27902,56713,56763</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=22829642$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://ineris.hal.science/ineris-00963244$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Guodong, Liu</creatorcontrib><creatorcontrib>Dan, Sun</creatorcontrib><creatorcontrib>Huilin, Lu</creatorcontrib><creatorcontrib>Bouillard, Jacques</creatorcontrib><creatorcontrib>Yinghua, Bai</creatorcontrib><creatorcontrib>Shuai, Wang</creatorcontrib><title>Computations of Fluid Dynamics of a 50 MWe Circulating Fluidized Bed Combustor</title><title>Industrial & engineering chemistry research</title><addtitle>Ind. Eng. Chem. Res</addtitle><description>Gas−particle two-phase turbulent flows are numerically studied in a 50 MWe circulating fluidized bed combustor. The dense flow of particles is modeled by the frictional stress models adopted from solid mechanics theory, and the dilute flow in the so-called rapid granular flow regime is modeled from the kinetic theory of granular flow. At low concentrations the viscosity due to the effect of the presence of particles is modeled by means of a semiempirical viscosity for fluidized catalytic cracking particles. The distribution of the velocity and concentration of particles in a circulating fluidized bed combustor is predicted. Simulations indicate that the dense regime with a high concentration of particles is in the bottom part and the dilute regime with a low concentration in the upper part of the furnace. The effect of secondary air on the flow behavior is analyzed, and the penetration length of the secondary air jet is computed in a 50 MWe circulating fluidized bed combustor.</description><subject>Applied sciences</subject><subject>Chemical engineering</subject><subject>Environmental Sciences</subject><subject>Exact sciences and technology</subject><subject>Fluidization</subject><subject>General Research</subject><subject>Hydrodynamics of contact apparatus</subject><issn>0888-5885</issn><issn>1520-5045</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNptkEFLxDAQhYMouK4e_Ae5eBCsTtKmTY5rdVVY9aJ4DGmaaJZuuyStsP56o9X1Isww8Pjeg3kIHRM4J0DJhTMCCIG030ETwigkDDK2iybAOU8Y52wfHYSwBADGsmyCHsputR561buuDbizeN4MrsZXm1atnP5WFGaA718MLp3XQxPR9nXE3Iep8WXcGFINoe_8Idqzqgnm6OdO0fP8-qm8TRaPN3flbJGolOZ9UhQVp3kcbQvCRcGzgpKCW0VYXZG6MlGrrLE5mNRYrlPBQetCUEFBGV6nU3Q25r6pRq69Wym_kZ1y8na2kK413gUJIPKUZtk7ifjpiGvfheCN3XoIyK_e5La3yJ6M7FoFrRrrVatj2q-BUk5FntE_Tukgl93g2_jwP3mfeTp3Qg</recordid><startdate>20100602</startdate><enddate>20100602</enddate><creator>Guodong, Liu</creator><creator>Dan, Sun</creator><creator>Huilin, Lu</creator><creator>Bouillard, Jacques</creator><creator>Yinghua, Bai</creator><creator>Shuai, Wang</creator><general>American Chemical Society</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>1XC</scope></search><sort><creationdate>20100602</creationdate><title>Computations of Fluid Dynamics of a 50 MWe Circulating Fluidized Bed Combustor</title><author>Guodong, Liu ; Dan, Sun ; Huilin, Lu ; Bouillard, Jacques ; Yinghua, Bai ; Shuai, Wang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a326t-77b826826cf718978472178fa15db1dbe897bfef60e3ef8c3980cc792920ae8d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Applied sciences</topic><topic>Chemical engineering</topic><topic>Environmental Sciences</topic><topic>Exact sciences and technology</topic><topic>Fluidization</topic><topic>General Research</topic><topic>Hydrodynamics of contact apparatus</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Guodong, Liu</creatorcontrib><creatorcontrib>Dan, Sun</creatorcontrib><creatorcontrib>Huilin, Lu</creatorcontrib><creatorcontrib>Bouillard, Jacques</creatorcontrib><creatorcontrib>Yinghua, Bai</creatorcontrib><creatorcontrib>Shuai, Wang</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Industrial & engineering chemistry research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Guodong, Liu</au><au>Dan, Sun</au><au>Huilin, Lu</au><au>Bouillard, Jacques</au><au>Yinghua, Bai</au><au>Shuai, Wang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Computations of Fluid Dynamics of a 50 MWe Circulating Fluidized Bed Combustor</atitle><jtitle>Industrial & engineering chemistry research</jtitle><addtitle>Ind. Eng. Chem. Res</addtitle><date>2010-06-02</date><risdate>2010</risdate><volume>49</volume><issue>11</issue><spage>5132</spage><epage>5140</epage><pages>5132-5140</pages><issn>0888-5885</issn><eissn>1520-5045</eissn><coden>IECRED</coden><abstract>Gas−particle two-phase turbulent flows are numerically studied in a 50 MWe circulating fluidized bed combustor. The dense flow of particles is modeled by the frictional stress models adopted from solid mechanics theory, and the dilute flow in the so-called rapid granular flow regime is modeled from the kinetic theory of granular flow. At low concentrations the viscosity due to the effect of the presence of particles is modeled by means of a semiempirical viscosity for fluidized catalytic cracking particles. The distribution of the velocity and concentration of particles in a circulating fluidized bed combustor is predicted. Simulations indicate that the dense regime with a high concentration of particles is in the bottom part and the dilute regime with a low concentration in the upper part of the furnace. The effect of secondary air on the flow behavior is analyzed, and the penetration length of the secondary air jet is computed in a 50 MWe circulating fluidized bed combustor.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><doi>10.1021/ie901103t</doi><tpages>9</tpages></addata></record> |
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| subjects | Applied sciences Chemical engineering Environmental Sciences Exact sciences and technology Fluidization General Research Hydrodynamics of contact apparatus |
| title | Computations of Fluid Dynamics of a 50 MWe Circulating Fluidized Bed Combustor |
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