Thermal Entrance Effect for Heat Transfer in Up-Flowing Gas−Particle Suspensions
This paper presents an experimental investigation of thermal development for fully-developed gas−particle suspensions in a 0.161 m i.d. circulating fluidized bed. Results indicated that local heat-transfer coefficients at the lower and upper ends of the heat-transfer surface were higher than those i...
Gespeichert in:
| Veröffentlicht in: | Industrial & engineering chemistry research 1996, Vol.35 (12), p.4781-4787 |
|---|---|
| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 4787 |
|---|---|
| container_issue | 12 |
| container_start_page | 4781 |
| container_title | Industrial & engineering chemistry research |
| container_volume | 35 |
| creator | Wang, Xiao S Ahmad, Munir Gibbs, Bernard M Geldart, Derek Rhodes, Martin J |
| description | This paper presents an experimental investigation of thermal development for fully-developed gas−particle suspensions in a 0.161 m i.d. circulating fluidized bed. Results indicated that local heat-transfer coefficients at the lower and upper ends of the heat-transfer surface were higher than those in the middle. This effect was more significant with increasing suspension density but was insensitive to increasing superficial gas velocity and increasing temperature. Analysis suggests that thermal development at the lower end of the heat-transfer surface is caused by the convection of the up-flowing gas augmented by the presence of fine particles, while thermal development at the upper end of the heat-transfer surface is the result of the convection of down-flowing particles near the riser wall. |
| doi_str_mv | 10.1021/ie960314o |
| format | Article |
| fullrecord | <record><control><sourceid>acs_osti_</sourceid><recordid>TN_cdi_crossref_primary_10_1021_ie960314o</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>a153122457</sourcerecordid><originalsourceid>FETCH-LOGICAL-a386t-7a04fcbfa661c91ce12066447f1860689a1475a2980c15f31c7604353711ef633</originalsourceid><addsrcrecordid>eNptkE1OwzAQRi0EEuVnwQ2MBAsWgZnEdpwllEIRFVS0rC1j2WAITmUHATdgzRE5CamCumI10sybb0aPkD2EY4QcT7ytBBTImjUyQJ5DxoHxdTIAKWXGpeSbZCulZwDgnLEBuZs_2fiqazoKbdTBWDpyzpqWuibSsdUtnXft5GykPtD7RXZRN-8-PNJLnX6-vqc6tt7Uls7e0sKG5JuQdsiG03Wyu391m9xfjObDcTa5vbwank4yXUjRZqUG5syD00KgqdBYzEEIxkqHUoCQlUZWcp1XEgxyV6ApBbCCFyWidaIotsl-n9uk1qtkfGvNk2lC6N5XDCspsGOOesbEJqVonVpE_6rjp0JQS2FqJaxjD3p2oZPRtVvq8Gm1kHPgolpGZj3mU2s_VmMdX5Qoi5Kr-XSmShifD2_OrtWk4w97Xpuknpu3GDop_5z_BbsNhIU</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Thermal Entrance Effect for Heat Transfer in Up-Flowing Gas−Particle Suspensions</title><source>American Chemical Society Web Editions</source><creator>Wang, Xiao S ; Ahmad, Munir ; Gibbs, Bernard M ; Geldart, Derek ; Rhodes, Martin J</creator><creatorcontrib>Wang, Xiao S ; Ahmad, Munir ; Gibbs, Bernard M ; Geldart, Derek ; Rhodes, Martin J</creatorcontrib><description>This paper presents an experimental investigation of thermal development for fully-developed gas−particle suspensions in a 0.161 m i.d. circulating fluidized bed. Results indicated that local heat-transfer coefficients at the lower and upper ends of the heat-transfer surface were higher than those in the middle. This effect was more significant with increasing suspension density but was insensitive to increasing superficial gas velocity and increasing temperature. Analysis suggests that thermal development at the lower end of the heat-transfer surface is caused by the convection of the up-flowing gas augmented by the presence of fine particles, while thermal development at the upper end of the heat-transfer surface is the result of the convection of down-flowing particles near the riser wall.</description><identifier>ISSN: 0888-5885</identifier><identifier>EISSN: 1520-5045</identifier><identifier>DOI: 10.1021/ie960314o</identifier><identifier>CODEN: IECRED</identifier><language>eng</language><publisher>Washington, DC: American Chemical Society</publisher><subject>01 COAL, LIGNITE, AND PEAT ; Applied sciences ; Chemical engineering ; CHEMICAL REACTORS ; CIRCULATING SYSTEMS ; ENGINEERING NOT INCLUDED IN OTHER CATEGORIES ; Exact sciences and technology ; FLOW RATE ; Fluidization ; FLUIDIZED BEDS ; FLUIDIZED-BED COMBUSTORS ; GAS FLOW ; HEAT TRANSFER</subject><ispartof>Industrial & engineering chemistry research, 1996, Vol.35 (12), p.4781-4787</ispartof><rights>Copyright © 1996 American Chemical Society</rights><rights>1997 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a386t-7a04fcbfa661c91ce12066447f1860689a1475a2980c15f31c7604353711ef633</citedby><cites>FETCH-LOGICAL-a386t-7a04fcbfa661c91ce12066447f1860689a1475a2980c15f31c7604353711ef633</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/ie960314o$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/ie960314o$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,776,780,881,2752,4010,27053,27900,27901,27902,56713,56763</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=2505691$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/419861$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Wang, Xiao S</creatorcontrib><creatorcontrib>Ahmad, Munir</creatorcontrib><creatorcontrib>Gibbs, Bernard M</creatorcontrib><creatorcontrib>Geldart, Derek</creatorcontrib><creatorcontrib>Rhodes, Martin J</creatorcontrib><title>Thermal Entrance Effect for Heat Transfer in Up-Flowing Gas−Particle Suspensions</title><title>Industrial & engineering chemistry research</title><addtitle>Ind. Eng. Chem. Res</addtitle><description>This paper presents an experimental investigation of thermal development for fully-developed gas−particle suspensions in a 0.161 m i.d. circulating fluidized bed. Results indicated that local heat-transfer coefficients at the lower and upper ends of the heat-transfer surface were higher than those in the middle. This effect was more significant with increasing suspension density but was insensitive to increasing superficial gas velocity and increasing temperature. Analysis suggests that thermal development at the lower end of the heat-transfer surface is caused by the convection of the up-flowing gas augmented by the presence of fine particles, while thermal development at the upper end of the heat-transfer surface is the result of the convection of down-flowing particles near the riser wall.</description><subject>01 COAL, LIGNITE, AND PEAT</subject><subject>Applied sciences</subject><subject>Chemical engineering</subject><subject>CHEMICAL REACTORS</subject><subject>CIRCULATING SYSTEMS</subject><subject>ENGINEERING NOT INCLUDED IN OTHER CATEGORIES</subject><subject>Exact sciences and technology</subject><subject>FLOW RATE</subject><subject>Fluidization</subject><subject>FLUIDIZED BEDS</subject><subject>FLUIDIZED-BED COMBUSTORS</subject><subject>GAS FLOW</subject><subject>HEAT TRANSFER</subject><issn>0888-5885</issn><issn>1520-5045</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1996</creationdate><recordtype>article</recordtype><recordid>eNptkE1OwzAQRi0EEuVnwQ2MBAsWgZnEdpwllEIRFVS0rC1j2WAITmUHATdgzRE5CamCumI10sybb0aPkD2EY4QcT7ytBBTImjUyQJ5DxoHxdTIAKWXGpeSbZCulZwDgnLEBuZs_2fiqazoKbdTBWDpyzpqWuibSsdUtnXft5GykPtD7RXZRN-8-PNJLnX6-vqc6tt7Uls7e0sKG5JuQdsiG03Wyu391m9xfjObDcTa5vbwank4yXUjRZqUG5syD00KgqdBYzEEIxkqHUoCQlUZWcp1XEgxyV6ApBbCCFyWidaIotsl-n9uk1qtkfGvNk2lC6N5XDCspsGOOesbEJqVonVpE_6rjp0JQS2FqJaxjD3p2oZPRtVvq8Gm1kHPgolpGZj3mU2s_VmMdX5Qoi5Kr-XSmShifD2_OrtWk4w97Xpuknpu3GDop_5z_BbsNhIU</recordid><startdate>1996</startdate><enddate>1996</enddate><creator>Wang, Xiao S</creator><creator>Ahmad, Munir</creator><creator>Gibbs, Bernard M</creator><creator>Geldart, Derek</creator><creator>Rhodes, Martin J</creator><general>American Chemical Society</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>1996</creationdate><title>Thermal Entrance Effect for Heat Transfer in Up-Flowing Gas−Particle Suspensions</title><author>Wang, Xiao S ; Ahmad, Munir ; Gibbs, Bernard M ; Geldart, Derek ; Rhodes, Martin J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a386t-7a04fcbfa661c91ce12066447f1860689a1475a2980c15f31c7604353711ef633</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1996</creationdate><topic>01 COAL, LIGNITE, AND PEAT</topic><topic>Applied sciences</topic><topic>Chemical engineering</topic><topic>CHEMICAL REACTORS</topic><topic>CIRCULATING SYSTEMS</topic><topic>ENGINEERING NOT INCLUDED IN OTHER CATEGORIES</topic><topic>Exact sciences and technology</topic><topic>FLOW RATE</topic><topic>Fluidization</topic><topic>FLUIDIZED BEDS</topic><topic>FLUIDIZED-BED COMBUSTORS</topic><topic>GAS FLOW</topic><topic>HEAT TRANSFER</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Xiao S</creatorcontrib><creatorcontrib>Ahmad, Munir</creatorcontrib><creatorcontrib>Gibbs, Bernard M</creatorcontrib><creatorcontrib>Geldart, Derek</creatorcontrib><creatorcontrib>Rhodes, Martin J</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Industrial & engineering chemistry research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Xiao S</au><au>Ahmad, Munir</au><au>Gibbs, Bernard M</au><au>Geldart, Derek</au><au>Rhodes, Martin J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Thermal Entrance Effect for Heat Transfer in Up-Flowing Gas−Particle Suspensions</atitle><jtitle>Industrial & engineering chemistry research</jtitle><addtitle>Ind. Eng. Chem. Res</addtitle><date>1996</date><risdate>1996</risdate><volume>35</volume><issue>12</issue><spage>4781</spage><epage>4787</epage><pages>4781-4787</pages><issn>0888-5885</issn><eissn>1520-5045</eissn><coden>IECRED</coden><abstract>This paper presents an experimental investigation of thermal development for fully-developed gas−particle suspensions in a 0.161 m i.d. circulating fluidized bed. Results indicated that local heat-transfer coefficients at the lower and upper ends of the heat-transfer surface were higher than those in the middle. This effect was more significant with increasing suspension density but was insensitive to increasing superficial gas velocity and increasing temperature. Analysis suggests that thermal development at the lower end of the heat-transfer surface is caused by the convection of the up-flowing gas augmented by the presence of fine particles, while thermal development at the upper end of the heat-transfer surface is the result of the convection of down-flowing particles near the riser wall.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><doi>10.1021/ie960314o</doi><tpages>7</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0888-5885 |
| ispartof | Industrial & engineering chemistry research, 1996, Vol.35 (12), p.4781-4787 |
| issn | 0888-5885 1520-5045 |
| language | eng |
| recordid | cdi_crossref_primary_10_1021_ie960314o |
| source | American Chemical Society Web Editions |
| subjects | 01 COAL, LIGNITE, AND PEAT Applied sciences Chemical engineering CHEMICAL REACTORS CIRCULATING SYSTEMS ENGINEERING NOT INCLUDED IN OTHER CATEGORIES Exact sciences and technology FLOW RATE Fluidization FLUIDIZED BEDS FLUIDIZED-BED COMBUSTORS GAS FLOW HEAT TRANSFER |
| title | Thermal Entrance Effect for Heat Transfer in Up-Flowing Gas−Particle Suspensions |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-01T07%3A22%3A22IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-acs_osti_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Thermal%20Entrance%20Effect%20for%20Heat%20Transfer%20in%20Up-Flowing%20Gas%E2%88%92Particle%20Suspensions&rft.jtitle=Industrial%20&%20engineering%20chemistry%20research&rft.au=Wang,%20Xiao%20S&rft.date=1996&rft.volume=35&rft.issue=12&rft.spage=4781&rft.epage=4787&rft.pages=4781-4787&rft.issn=0888-5885&rft.eissn=1520-5045&rft.coden=IECRED&rft_id=info:doi/10.1021/ie960314o&rft_dat=%3Cacs_osti_%3Ea153122457%3C/acs_osti_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |