Air distribution in room ventilated by fabric air dispersion system
Several researches about airflow distribution in a room generated by fabric air dispersion system (FADS) were reported, but details about the simulation in computer fluid dynamics (CFD) method were not elaborated. In present work The commercial software FLUENT with standard k − ε turbulence model is...
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| Veröffentlicht in: | Building and environment 2011-11, Vol.46 (11), p.2121-2129 |
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| creator | Chen, Fujiang Chen, Huanxin Xie, Junlong Shu, Zhaohui Mao, Jiani |
| description | Several researches about airflow distribution in a room generated by fabric air dispersion system (FADS) were reported, but details about the simulation in computer fluid dynamics (CFD) method were not elaborated. In present work The commercial software FLUENT with standard
k
−
ε
turbulence model is applied to predict air distribution in a room ventilated by FADS in penetration mode, where FADS is described with the porous media model based on the modified Forchheimer equation. And more details about the simulation are given. Flow visualization near the region of FADS is conducted using dry-ice as a smoking material. The distribution of indoor air velocity and temperature and draught rating (DR) around the ankle and neck level are predicted. The simulation well matches the corresponding experimental value and results of earlier work. Results showed that air is radially discharged out in the direction perpendicular to the spatial cambered porous fibre in lower velocity, and evenly distributed along its length direction when air is distributed by FADS in penetration mode. The velocity of indoor air is very low, and the vertical air temperature difference is small (less than 2 K). DR around the ankle and neck is immune to supply air flow rate and location, which is less than the comfort limit of ASHRAE Standard 55-2004. In addition, airflow pattern is greatly impacted by the location and strength of heat load. |
| doi_str_mv | 10.1016/j.buildenv.2011.04.016 |
| format | Article |
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k
−
ε
turbulence model is applied to predict air distribution in a room ventilated by FADS in penetration mode, where FADS is described with the porous media model based on the modified Forchheimer equation. And more details about the simulation are given. Flow visualization near the region of FADS is conducted using dry-ice as a smoking material. The distribution of indoor air velocity and temperature and draught rating (DR) around the ankle and neck level are predicted. The simulation well matches the corresponding experimental value and results of earlier work. Results showed that air is radially discharged out in the direction perpendicular to the spatial cambered porous fibre in lower velocity, and evenly distributed along its length direction when air is distributed by FADS in penetration mode. The velocity of indoor air is very low, and the vertical air temperature difference is small (less than 2 K). DR around the ankle and neck is immune to supply air flow rate and location, which is less than the comfort limit of ASHRAE Standard 55-2004. In addition, airflow pattern is greatly impacted by the location and strength of heat load.</description><identifier>ISSN: 0360-1323</identifier><identifier>EISSN: 1873-684X</identifier><identifier>DOI: 10.1016/j.buildenv.2011.04.016</identifier><identifier>CODEN: BUENDB</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Applied sciences ; Building technical equipments ; Buildings ; Buildings. Public works ; Computation methods. Tables. Charts ; Computer simulation ; Dispersions ; Draught rating (DR) ; Dynamical systems ; Environmental engineering ; Exact sciences and technology ; Fabric air dispersion system (FADS) ; Flow visualization ; Indoor ; Mathematical models ; Penetration ; Pollution indoor buildings ; Porous media ; Position (location) ; Structural analysis. Stresses ; Temperature distribution ; Velocity distribution ; Ventilation. Air conditioning</subject><ispartof>Building and environment, 2011-11, Vol.46 (11), p.2121-2129</ispartof><rights>2011 Elsevier Ltd</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c407t-c1496e015b91bb4b64b180f89f437324db9a38ba0418a3c7a988c4596880cd273</citedby><cites>FETCH-LOGICAL-c407t-c1496e015b91bb4b64b180f89f437324db9a38ba0418a3c7a988c4596880cd273</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0360132311001181$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24314140$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Chen, Fujiang</creatorcontrib><creatorcontrib>Chen, Huanxin</creatorcontrib><creatorcontrib>Xie, Junlong</creatorcontrib><creatorcontrib>Shu, Zhaohui</creatorcontrib><creatorcontrib>Mao, Jiani</creatorcontrib><title>Air distribution in room ventilated by fabric air dispersion system</title><title>Building and environment</title><description>Several researches about airflow distribution in a room generated by fabric air dispersion system (FADS) were reported, but details about the simulation in computer fluid dynamics (CFD) method were not elaborated. In present work The commercial software FLUENT with standard
k
−
ε
turbulence model is applied to predict air distribution in a room ventilated by FADS in penetration mode, where FADS is described with the porous media model based on the modified Forchheimer equation. And more details about the simulation are given. Flow visualization near the region of FADS is conducted using dry-ice as a smoking material. The distribution of indoor air velocity and temperature and draught rating (DR) around the ankle and neck level are predicted. The simulation well matches the corresponding experimental value and results of earlier work. Results showed that air is radially discharged out in the direction perpendicular to the spatial cambered porous fibre in lower velocity, and evenly distributed along its length direction when air is distributed by FADS in penetration mode. The velocity of indoor air is very low, and the vertical air temperature difference is small (less than 2 K). DR around the ankle and neck is immune to supply air flow rate and location, which is less than the comfort limit of ASHRAE Standard 55-2004. In addition, airflow pattern is greatly impacted by the location and strength of heat load.</description><subject>Applied sciences</subject><subject>Building technical equipments</subject><subject>Buildings</subject><subject>Buildings. Public works</subject><subject>Computation methods. Tables. Charts</subject><subject>Computer simulation</subject><subject>Dispersions</subject><subject>Draught rating (DR)</subject><subject>Dynamical systems</subject><subject>Environmental engineering</subject><subject>Exact sciences and technology</subject><subject>Fabric air dispersion system (FADS)</subject><subject>Flow visualization</subject><subject>Indoor</subject><subject>Mathematical models</subject><subject>Penetration</subject><subject>Pollution indoor buildings</subject><subject>Porous media</subject><subject>Position (location)</subject><subject>Structural analysis. Stresses</subject><subject>Temperature distribution</subject><subject>Velocity distribution</subject><subject>Ventilation. Air conditioning</subject><issn>0360-1323</issn><issn>1873-684X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqFkEtLxDAUhYMoOI7-BelGdNN6b5Om6c5h8AUDbhTchSRNIUMfY9IOzL-3paNLXV04fOdc-Ai5RkgQkN9vEz24urTtPkkBMQGWjPEJWaDIacwF-zwlC6AcYqQpPScXIWxhJArKFmS9cj4qXei900PvujZybeS7ron2tu1drXpbRvoQVUp7ZyI10zvrw8SGQ-htc0nOKlUHe3W8S_Lx9Pi-fok3b8-v69UmNgzyPjbICm4BM12g1kxzplFAJYqK0ZymrNSFokIrYCgUNbkqhDAsK7gQYMo0p0tyO-_ufPc12NDLxgVj61q1thuCFCKDDFKKI3n3J4k8x5QVFKdRPqPGdyF4W8mdd43yB4kgJ79yK3_8ysmvBCbHeCzeHH-oYFRdedUaF37bKaPIkMHIPcycHdXsnfUyGGdbY0vnrell2bn_Xn0DxKmTRg</recordid><startdate>20111101</startdate><enddate>20111101</enddate><creator>Chen, Fujiang</creator><creator>Chen, Huanxin</creator><creator>Xie, Junlong</creator><creator>Shu, Zhaohui</creator><creator>Mao, Jiani</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SU</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>KR7</scope><scope>7ST</scope><scope>7TV</scope><scope>SOI</scope></search><sort><creationdate>20111101</creationdate><title>Air distribution in room ventilated by fabric air dispersion system</title><author>Chen, Fujiang ; Chen, Huanxin ; Xie, Junlong ; Shu, Zhaohui ; Mao, Jiani</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c407t-c1496e015b91bb4b64b180f89f437324db9a38ba0418a3c7a988c4596880cd273</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Applied sciences</topic><topic>Building technical equipments</topic><topic>Buildings</topic><topic>Buildings. Public works</topic><topic>Computation methods. Tables. Charts</topic><topic>Computer simulation</topic><topic>Dispersions</topic><topic>Draught rating (DR)</topic><topic>Dynamical systems</topic><topic>Environmental engineering</topic><topic>Exact sciences and technology</topic><topic>Fabric air dispersion system (FADS)</topic><topic>Flow visualization</topic><topic>Indoor</topic><topic>Mathematical models</topic><topic>Penetration</topic><topic>Pollution indoor buildings</topic><topic>Porous media</topic><topic>Position (location)</topic><topic>Structural analysis. Stresses</topic><topic>Temperature distribution</topic><topic>Velocity distribution</topic><topic>Ventilation. Air conditioning</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chen, Fujiang</creatorcontrib><creatorcontrib>Chen, Huanxin</creatorcontrib><creatorcontrib>Xie, Junlong</creatorcontrib><creatorcontrib>Shu, Zhaohui</creatorcontrib><creatorcontrib>Mao, Jiani</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Environmental Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Environment Abstracts</collection><collection>Pollution Abstracts</collection><collection>Environment Abstracts</collection><jtitle>Building and environment</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chen, Fujiang</au><au>Chen, Huanxin</au><au>Xie, Junlong</au><au>Shu, Zhaohui</au><au>Mao, Jiani</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Air distribution in room ventilated by fabric air dispersion system</atitle><jtitle>Building and environment</jtitle><date>2011-11-01</date><risdate>2011</risdate><volume>46</volume><issue>11</issue><spage>2121</spage><epage>2129</epage><pages>2121-2129</pages><issn>0360-1323</issn><eissn>1873-684X</eissn><coden>BUENDB</coden><abstract>Several researches about airflow distribution in a room generated by fabric air dispersion system (FADS) were reported, but details about the simulation in computer fluid dynamics (CFD) method were not elaborated. In present work The commercial software FLUENT with standard
k
−
ε
turbulence model is applied to predict air distribution in a room ventilated by FADS in penetration mode, where FADS is described with the porous media model based on the modified Forchheimer equation. And more details about the simulation are given. Flow visualization near the region of FADS is conducted using dry-ice as a smoking material. The distribution of indoor air velocity and temperature and draught rating (DR) around the ankle and neck level are predicted. The simulation well matches the corresponding experimental value and results of earlier work. Results showed that air is radially discharged out in the direction perpendicular to the spatial cambered porous fibre in lower velocity, and evenly distributed along its length direction when air is distributed by FADS in penetration mode. The velocity of indoor air is very low, and the vertical air temperature difference is small (less than 2 K). DR around the ankle and neck is immune to supply air flow rate and location, which is less than the comfort limit of ASHRAE Standard 55-2004. In addition, airflow pattern is greatly impacted by the location and strength of heat load.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.buildenv.2011.04.016</doi><tpages>9</tpages></addata></record> |
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| subjects | Applied sciences Building technical equipments Buildings Buildings. Public works Computation methods. Tables. Charts Computer simulation Dispersions Draught rating (DR) Dynamical systems Environmental engineering Exact sciences and technology Fabric air dispersion system (FADS) Flow visualization Indoor Mathematical models Penetration Pollution indoor buildings Porous media Position (location) Structural analysis. Stresses Temperature distribution Velocity distribution Ventilation. Air conditioning |
| title | Air distribution in room ventilated by fabric air dispersion system |
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