DC Field | Value | Language |
---|---|---|
dc.contributor.author | Namkung, Won | ko |
dc.contributor.author | Kim, Sung Won | ko |
dc.contributor.author | Kim, Sang Done | ko |
dc.date.accessioned | 2008-04-21T05:55:39Z | - |
dc.date.available | 2008-04-21T05:55:39Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 1999 | - |
dc.identifier.citation | CHEMICAL ENGINEERING JOURNAL, v.72, no.3, pp.245 - 252 | - |
dc.identifier.issn | 1385-8947 | - |
dc.identifier.uri | http://hdl.handle.net/10203/4008 | - |
dc.description.abstract | The hydrodynamics and flow regime in fast fluidized beds of FCC and silica sand particles were determined in a Plexiglas column (0.1 m i.d. x 5.3 m high). The transport velocity (U-tr) was determined by the emptying time and flooding point determination methods. At a given solid circulation rate, solid holdups in the upper dilute region exhibit their maximum values with variation of gas velocities, where a dense region forms at the bottom of the riser. The gas velocity at which solid holdup in the upper dilute region exhibits a maximum value is defined as the fast transition velocity (U-FT) The fast fluidization regime can be divided into the fast transition region and the fully developed fast fluidization region. A demarcation Line between the two regions is proposed. The fast transition velocity and the transition velocity (U-FD) to pneumatic transport have been correlated. The transition velocity of the fast fluidization region can be predicted by the choking velocity, U-FD and U-FT.(C). 1999 Elsevier Science S.A. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en_US | en |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | GAS | - |
dc.subject | TRANSPORT | - |
dc.subject | VOIDAGE | - |
dc.subject | CHOKING | - |
dc.title | Flow regimes and axial pressure profiles in a circulating fluidized bed | - |
dc.type | Article | - |
dc.identifier.wosid | 000079644700007 | - |
dc.identifier.scopusid | 2-s2.0-0033535308 | - |
dc.type.rims | ART | - |
dc.citation.volume | 72 | - |
dc.citation.issue | 3 | - |
dc.citation.beginningpage | 245 | - |
dc.citation.endingpage | 252 | - |
dc.citation.publicationname | CHEMICAL ENGINEERING JOURNAL | - |
dc.identifier.doi | 10.1016/S1385-8947(99)00013-3 | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Kim, Sang Done | - |
dc.contributor.nonIdAuthor | Namkung, Won | - |
dc.contributor.nonIdAuthor | Kim, Sung Won | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | flow regimes diagram | - |
dc.subject.keywordAuthor | fast fluidized bed | - |
dc.subject.keywordAuthor | fast transition velocity | - |
dc.subject.keywordPlus | GAS | - |
dc.subject.keywordPlus | TRANSPORT | - |
dc.subject.keywordPlus | VOIDAGE | - |
dc.subject.keywordPlus | CHOKING | - |
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