Energetic, ecologic and fluid-dynamic analysis of a fluidized bed gasifier operating with sugar cane bagasse

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorDiniz Filho, Paulo Tasso
dc.creatorSilveira, Jose Luz
dc.creatorTuna, Celso Eduardo
dc.creatorLamas, Wendell de Queiroz
dc.date2014-05-27T11:29:29Z
dc.date2016-10-25T18:48:29Z
dc.date2014-05-27T11:29:29Z
dc.date2016-10-25T18:48:29Z
dc.date2013-05-14
dc.date.accessioned2017-04-06T02:23:50Z
dc.date.available2017-04-06T02:23:50Z
dc.identifierApplied Thermal Engineering, v. 57, n. 1-2, p. 116-124, 2013.
dc.identifier1359-4311
dc.identifierhttp://hdl.handle.net/11449/75395
dc.identifierhttp://acervodigital.unesp.br/handle/11449/75395
dc.identifier10.1016/j.applthermaleng.2013.01.045
dc.identifierWOS:000320976500015
dc.identifier2-s2.0-84877353351
dc.identifierhttp://dx.doi.org/10.1016/j.applthermaleng.2013.01.045
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/896139
dc.descriptionThis work aims to study the thermodynamic, ecological and fluid-dynamic aspects of a circulating fluidized bed gasifier using sugar cane bagasse as biomass, in order to estimate a model of its normal operation. In the initial stage was analysed the composition of biomass selected (sugar cane bagasse) and its lower heating value (LHV) was calculated. The energy balance of the gasifier was done, being the volumetric flow of air, synthesis gas and biomass estimated. Also the power produced by this gasifier was theoretically estimated. Then the circulating fluidized bed gasifier was designed for operation with approximately 100 kg/h of processed biomass. Cross-sectional area of the reactor, feeder size, diameter of the exit zone of the gases and minimum height of the expanded bed were selected. Some bed gasifier hydrodynamic factors were also studied. The minimum fluidization velocity, fluidization terminal velocity, and average fluidizing velocity were calculated, in order to understand the fluid-dynamic behaviour of gasification of this fuel. It was obtained a theoretical model that can support a possible prototype of circulating fluidized bed gasifier biomass. Finally, there were studied the ecological aspects of the gasifier, through an overall methodology. Ecological efficiencies were estimated for two scenarios: first considering the carbon cycle and thereafter disregarding the carbon cycle. In both cases, it can be proved the ecological viability of the project. © 2013 Elsevier Ltd. All rights reserved.
dc.languageeng
dc.relationApplied Thermal Engineering
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectBiomass gasification
dc.subjectFluidized bed gasifier modeling
dc.subjectSugar and alcohol industry
dc.subjectAlcohol industry
dc.subjectBiomass Gasification
dc.subjectCirculating fluidized bed gasifier
dc.subjectCross sectional area
dc.subjectEcological efficiency
dc.subjectFluid-dynamic analysis
dc.subjectFluidized bed gasifiers
dc.subjectMinimum fluidization velocity
dc.subjectBiomass
dc.subjectCarbon
dc.subjectChemical industry
dc.subjectEcology
dc.subjectFluid dynamics
dc.subjectFluidization
dc.subjectFluidized beds
dc.subjectSynthesis gas
dc.subjectGasification
dc.titleEnergetic, ecologic and fluid-dynamic analysis of a fluidized bed gasifier operating with sugar cane bagasse
dc.typeOtro


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