Experimental Fluid Dynamics Study in a Fluidized Bed by Deterministic Chaos Analysis

dc.creatorCastilho, GJ
dc.creatorCremasco, MA
dc.creatorde Martin, L
dc.creatorAragon, JM
dc.date2011
dc.date2014-07-30T17:32:09Z
dc.date2015-11-26T17:46:09Z
dc.date2014-07-30T17:32:09Z
dc.date2015-11-26T17:46:09Z
dc.date.accessioned2018-03-29T00:28:39Z
dc.date.available2018-03-29T00:28:39Z
dc.identifierParticulate Science And Technology. Taylor & Francis Inc, v. 29, n. 2, n. 179, n. 196, 2011.
dc.identifier0272-6351
dc.identifierWOS:000288282000006
dc.identifier10.1080/02726351003792906
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/66374
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/66374
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1288406
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionDifferential pressure fluctuations in gas-solid fluidized beds were analyzed by chaos analysis (construction of attractors, correlation dimension, Kolmogorov entropy) and mutual information. Experimental fluidization tests of three different particles were conducted. Two of them are from Geldart group B and one from Geldart group D. The fluidization experiments were performed in a cylindrical bed with 0.07m i.d. and 1.0m high. Pressure fluctuations were measured by three pressure transducers, and their signal time series were analyzed in the time domain (mean and standard deviation) and in the frequency domain (power spectra) for comparison and complementation of chaos analysis. Analyses in the time domain allowed a good estimation for determining whether or not the system is fluidized. The Fourier spectra provided more detailed information that could identify other phenomena such as the presence of bubbles. The chaos tools produced sensitive results, offering a qualitative and quantitative analysis for identification of the phenomena that occur in fluidization. Three different fluidization regimes could be indentified: multiple bubble bed, slugging bed, and exploding bubble bed.
dc.description29
dc.description2
dc.description179
dc.description196
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionSantander Scholarship Program for International Mobility
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageen
dc.publisherTaylor & Francis Inc
dc.publisherPhiladelphia
dc.publisherEUA
dc.relationParticulate Science And Technology
dc.relationPart. Sci. Technol.
dc.rightsfechado
dc.rightshttp://journalauthors.tandf.co.uk/permissions/reusingOwnWork.asp
dc.sourceWeb of Science
dc.subjectchaos
dc.subjectdifferential pressure measurement
dc.subjectfluidization
dc.subjectgas-solid
dc.subjectsignals analysis
dc.subjectTime-series Analysis
dc.subjectPressure-fluctuations
dc.subjectStrange Attractors
dc.subjectQuality
dc.subjectEntropy
dc.subjectRegimes
dc.titleExperimental Fluid Dynamics Study in a Fluidized Bed by Deterministic Chaos Analysis
dc.typeArtículos de revistas


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