CAS OpenIR  > 研究所(批量导入)
Estimating radial voidage profiles for all fluidization regimes in circulating fluidized bed risers
Alternative TitlePowder Technol.
Xu, GW; Sun, GG; Gao, SQ
2004-01-14
Source PublicationPOWDER TECHNOLOGY
ISSN0032-5910
Volume139Issue:2Pages:186-192
AbstractIn terms of variation characteristics of radial voidage profiles, we had identified that all fluidization regimes from minimum fluidization to pneumatic transport prevailing in circulating fluidized bed (CFB) risers can be grossly divided into two distinctive variational regions, the dense phase continuous bubbling flow region and the dilute phase continuous clustering flow region, at a cross-sectionally averaged voidage of 0.75 [Powder Technol. 101 (1999) 91]. Succeeding that work, this article is devoted to further estimating the radial voidage profiles in two such distinctive variational regions by concerning the case of circular circulating fluidized bed risers. A new correlation was proposed for the dense phase continuous bubbling flow region, while the equation of Zhang et al. [Chem. Eng. Sci. 46 (1991) 3045] was considered applicable to the dilute phase continuous clustering flow region. Further improving the equation of Zhang et al. according to the result obtained in our last report ensured the continuity between the two correlations. In addition, the article also highlighted the formation mechanics of the two distinctive variational regions for radial voidage profiles in terms of the different gas/particle hydrodynamic behaviors in bubbling and clustering flows. (C) 2004 Elsevier B.V. All rights reserved.; In terms of variation characteristics of radial voidage profiles, we had identified that all fluidization regimes from minimum fluidization to pneumatic transport prevailing in circulating fluidized bed (CFB) risers can be grossly divided into two distinctive variational regions, the dense phase continuous bubbling flow region and the dilute phase continuous clustering flow region, at a cross-sectionally averaged voidage of 0.75 [Powder Technol. 101 (1999) 91]. Succeeding that work, this article is devoted to further estimating the radial voidage profiles in two such distinctive variational regions by concerning the case of circular circulating fluidized bed risers. A new correlation was proposed for the dense phase continuous bubbling flow region, while the equation of Zhang et al. [Chem. Eng. Sci. 46 (1991) 3045] was considered applicable to the dilute phase continuous clustering flow region. Further improving the equation of Zhang et al. according to the result obtained in our last report ensured the continuity between the two correlations. In addition, the article also highlighted the formation mechanics of the two distinctive variational regions for radial voidage profiles in terms of the different gas/particle hydrodynamic behaviors in bubbling and clustering flows. (C) 2004 Elsevier B.V. All rights reserved.
KeywordFluidization Radial Voidage Profile Hydrodynamics Regime Transition Modeling
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.powtec.2003.10.014
URL查看原文
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000189093700013
Citation statistics
Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/4930
Collection研究所(批量导入)
AffiliationChinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Xu, GW,Sun, GG,Gao, SQ. Estimating radial voidage profiles for all fluidization regimes in circulating fluidized bed risers[J]. POWDER TECHNOLOGY,2004,139(2):186-192.
APA Xu, GW,Sun, GG,&Gao, SQ.(2004).Estimating radial voidage profiles for all fluidization regimes in circulating fluidized bed risers.POWDER TECHNOLOGY,139(2),186-192.
MLA Xu, GW,et al."Estimating radial voidage profiles for all fluidization regimes in circulating fluidized bed risers".POWDER TECHNOLOGY 139.2(2004):186-192.
Files in This Item:
File Name/Size DocType Version Access License
Estimating radial vo(653KB) 限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Xu, GW]'s Articles
[Sun, GG]'s Articles
[Gao, SQ]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xu, GW]'s Articles
[Sun, GG]'s Articles
[Gao, SQ]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xu, GW]'s Articles
[Sun, GG]'s Articles
[Gao, SQ]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.