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RADIAL VOIDAGE PROFILES IN FAST FLUIDIZED-BEDS OF DIFFERENT DIAMETERS
Alternative TitleChem. Eng. Sci.
ZHANG, W; TUNG, Y; JOHNSSON, F
1991
Source PublicationCHEMICAL ENGINEERING SCIENCE
ISSN0009-2509
Volume46Issue:12Pages:3045-3052
AbstractA previously developed method for calibrating an optical-fibre probe for voidage measurement in gas-solid systems has been improved. This was applied to study the influence of operating conditions, particle properties and bed diameters on radial voidage profiles in circulating fluidized beds operating in the fast regime. The present experimental results showed that the radial voidage profile depends solely on the value of the cross-section-averaged voidage, irrespective of operating conditions, solids properties and bed diameters, and can be correlated by the expression epsilon = epsilon-BAR(0.191 + phi-2.5 + 3-phi-11, where epsilon and epsilon-BAR represent the local and cross-section-averaged voidage respectively, and phi-denotes the dimensionless radial distance from the centre of the bed.; A previously developed method for calibrating an optical-fibre probe for voidage measurement in gas-solid systems has been improved. This was applied to study the influence of operating conditions, particle properties and bed diameters on radial voidage profiles in circulating fluidized beds operating in the fast regime. The present experimental results showed that the radial voidage profile depends solely on the value of the cross-section-averaged voidage, irrespective of operating conditions, solids properties and bed diameters, and can be correlated by the expression epsilon = epsilon-BAR(0.191 + phi-2.5 + 3-phi-11, where epsilon and epsilon-BAR represent the local and cross-section-averaged voidage respectively, and phi-denotes the dimensionless radial distance from the centre of the bed.
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
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Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:A1991GP76100008
Citation statistics
Cited Times:133[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/7961
Collection研究所(批量导入)
Affiliation1.CHALMERS UNIV TECHNOL,DEPT ENERGY CONVERS,S-41296 GOTHENBURG,SWEDEN
2.CHINESE ACAD SCI,INST CHEM MET,MULTIPHASE REACT LAB,BEIJING,PEOPLES R CHINA
Recommended Citation
GB/T 7714
ZHANG, W,TUNG, Y,JOHNSSON, F. RADIAL VOIDAGE PROFILES IN FAST FLUIDIZED-BEDS OF DIFFERENT DIAMETERS[J]. CHEMICAL ENGINEERING SCIENCE,1991,46(12):3045-3052.
APA ZHANG, W,TUNG, Y,&JOHNSSON, F.(1991).RADIAL VOIDAGE PROFILES IN FAST FLUIDIZED-BEDS OF DIFFERENT DIAMETERS.CHEMICAL ENGINEERING SCIENCE,46(12),3045-3052.
MLA ZHANG, W,et al."RADIAL VOIDAGE PROFILES IN FAST FLUIDIZED-BEDS OF DIFFERENT DIAMETERS".CHEMICAL ENGINEERING SCIENCE 46.12(1991):3045-3052.
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