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Hydrodynamic Characteristics of Dual-Impeller Configurations in a Multiple-Phase Stirred Tank
Wang, Tao1; Yu, Gengzhi1; Yong, Yumei1; Yang, Chao1,2; Mao, Zai-Sha1; Yang, C
2010-02-03
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
ISSN0888-5885
Volume49Issue:3Pages:1001-1009
AbstractExperiments are carried out in a baffled flat-bottom stirred tank to test live dual-impeller configurations, including a new type of impeller, alternate blade disk turbine (ABDT). Power consumptions in gas-liquid, liquid-solid, and gas-liquid-solid systems are determined by the shaft-torque method. It is found that the configuration with all axial impeller consumes less energy than that with a radial one in all multiple-phase systems. The correlations between power input and gas flow rate or solid concentration are also discussed. Power number reaches a limit with the increase of Reynolds number in liquid-solid systems. Aeration is proved to be harmful to solid suspension. Mixing time and solid particle concentration are measured by the electric conductivity method and Powder Voidmeter PC-6, respectively. The mixing modes (axial and radial) are proposed in the light of impeller types and flow patterns. The experimental results show that the mixing time of the double radial impeller configuration is the shortest, while the double axial impeller combination performs Worst. Judging from the axial solid particle concentration distribution and overall Suspension uniformity, the combination taking pitched blade turbine downflow (PBTD) as the lower impeller achieves the best solid Suspension.
KeywordMechanically Agitated Contactor Pitched-blade Turbine Power-consumption Solid Suspension Mixing Time Liquid-phase Homogenization Energy Particle Suspension Gas Reactor
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1021/ie9006886
Indexed BySCI ; ISTP
Language英语
WOS KeywordMECHANICALLY AGITATED CONTACTOR ; PITCHED-BLADE TURBINE ; POWER-CONSUMPTION ; SOLID SUSPENSION ; MIXING TIME ; LIQUID-PHASE ; HOMOGENIZATION ENERGY ; PARTICLE SUSPENSION ; GAS ; REACTOR
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000273895500009
Citation statistics
Cited Times:24[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6212
Collection湿法冶金清洁生产技术国家工程实验室
Corresponding AuthorYang, C
Affiliation1.Chinese Acad Sci, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China
2.Jiangsu Marine Resources Dev Res Inst, Lianyungang 222005, Peoples R China
Recommended Citation
GB/T 7714
Wang, Tao,Yu, Gengzhi,Yong, Yumei,et al. Hydrodynamic Characteristics of Dual-Impeller Configurations in a Multiple-Phase Stirred Tank[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2010,49(3):1001-1009.
APA Wang, Tao,Yu, Gengzhi,Yong, Yumei,Yang, Chao,Mao, Zai-Sha,&Yang, C.(2010).Hydrodynamic Characteristics of Dual-Impeller Configurations in a Multiple-Phase Stirred Tank.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,49(3),1001-1009.
MLA Wang, Tao,et al."Hydrodynamic Characteristics of Dual-Impeller Configurations in a Multiple-Phase Stirred Tank".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 49.3(2010):1001-1009.
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