Particle granular temperature of Geldart A, A/B and B particles in dense gas-fluidized beds

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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
刊名	CHEMICAL ENGINEERING SCIENCE
	2013-06-28
卷号	97 期号:0 页码:264-271
关键词	Powder technology Granular temperature Fluidization Particulate processes Multiphase flow Particle classification diagram
英文摘要	Extensive 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.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Chemical
研究领域[WOS]	Engineering
关键词[WOS]	MAGNETIC-RESONANCE MEASUREMENTS ; BUBBLING FLUIDIZATION ; SIMULATION ; MODEL ; CLASSIFICATION ; VELOCITY ; COHESION ; STRESSES ; BEHAVIOR ; REGIMES
收录类别	SCI
语种	英语
WOS记录号	WOS:000320508700024
公开日期	2015-05-27
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/13694]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.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
推荐引用方式 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.