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Particle granular temperature of Geldart A, A/B and B particles in dense gas-fluidized beds
Wang, Junwu1,2; van der Hoef, M. A.2,3; Kuipers, J. A. M.2
2013-06-28
Source PublicationCHEMICAL ENGINEERING SCIENCE
Volume97Issue:0Pages:264-271
AbstractExtensive studies have been devoted to the boundary of Geldart A and B particles due to its great practical relevance, however, consensus on the hydrodynamic characteristics when the A/B boundary is crossed is still lacking. On the basis of extensive discrete particle simulations, it seems that there is no dramatic change with respect to the nature of granular temperature as a function of superficial gas velocity when the A/B boundary is crossed, suggesting a smooth transition from Geldart A particles to Geldart B particles, which is in agreement with some of the experimental studies (Geldart, D., 1973. Powder Technol. 7, 285-292; Grace, JR., 1986. Can. J. Chem. Eng. 64, 353-363; Loezos et al., 2002. Chem. Eng. Sci. 57, 5123-5141), but disagrees with acoustic shot noise (ASN) studies (Cody et al., 1996. Powder Technol. 87, 211-232; and Cody et al., 2008. Powder Technol. 182, 146-170). Finally, we show that the disagreement between the results obtained from present DPM studies and ASN studies may possibly be attributed to the short range of superficial gas velocity in ASN measurement and/or the effect of the reactor size. In view of the various possible sources of uncertainty related to both DPM method and ASN technique, lot of works are needed before making a definite conclusion on the nature of hydrodynamic characteristics of dense gas-fluidized beds when the boundary of Geldart A/B particles was crossed. (C) 2013 Elsevier Ltd. All rights reserved.
KeywordPowder Technology Granular Temperature Fluidization Particulate Processes Multiphase Flow Particle Classification Diagram
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
Indexed BySCI
Language英语
WOS KeywordMAGNETIC-RESONANCE MEASUREMENTS ; BUBBLING FLUIDIZATION ; SIMULATION ; MODEL ; CLASSIFICATION ; VELOCITY ; COHESION ; STRESSES ; BEHAVIOR ; REGIMES
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000320508700024
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13694
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Eindhoven Univ Technol, Dept Chem Engn & Chem, NL-5600 MB Eindhoven, Netherlands
3.Univ Twente, Dept Sci & Technol, NL-7500 AE Enschede, Netherlands
Recommended Citation
GB/T 7714
Wang, Junwu,van der Hoef, M. A.,Kuipers, J. A. M.. Particle granular temperature of Geldart A, A/B and B particles in dense gas-fluidized beds[J]. CHEMICAL ENGINEERING SCIENCE,2013,97(0):264-271.
APA Wang, Junwu,van der Hoef, M. A.,&Kuipers, J. A. M..(2013).Particle granular temperature of Geldart A, A/B and B particles in dense gas-fluidized beds.CHEMICAL ENGINEERING SCIENCE,97(0),264-271.
MLA Wang, Junwu,et al."Particle granular temperature of Geldart A, A/B and B particles in dense gas-fluidized beds".CHEMICAL ENGINEERING SCIENCE 97.0(2013):264-271.
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