Optimization of Cyclone Separators Using Genetic Algorithm 基于遗传算法地旋风分离器优化.pdf

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1、InternationalReviewofChemicalEngineering(I.RE.CH.E.),Vol.2,N.6November2010OptimizationofCycloneSeparatorsUsingGeneticAlgorithm12S.I.Pishbin,M.MoghimanAbstract–Severalclassicalapproachesfordesigningcycloneseparatorshavebeenpresentedtilltoday.Althoughtheseapproac

2、heshaveworkedwellincertaincircumstances,theymaynotalwaysleadtothebestpossibledesigns.Thispaperpresentsarobustperformanceoptimizationmethodforcycloneseparatorsusinggeneticalgorithm.Theeffectsofsevengeometricaldesignparametersonefficiencyandpressuredropareinvesti

3、gatedsimultaneously.Forcalculatingtheseperformancecharacteristics,agas-solidmultiphaseflowsimulationisusedtomodelthetwo-phaseflowinsidethecyclone.Theproposedcomputationalfluiddynamicmodelisemployedtoformulatetheobjectivefunctions,whicharethepre-requisiteofgenet

4、icalgorithm.Thesimultaneousoptimizingofcycloneparametersrevealstheprofoundeffectsoftheconicalheightandslope,onbothefficiencyandpressuredropofcycloneseparators.Theresultsalsoshowthatbyincreasingtheefficiencyover85percent,pressuredropwillbeincreasedsignificantly.

5、Copyright©2010PraiseWorthyPrizeS.r.l.-Allrightsreserved.Keywords:Cyclone,Efficiency,GeneticAlgorithm,PressureDrop,WeightingCoefficientNomenclatureGreekLetteraInletheight(-)αSlopeofconicalpartofthecyclone(-)BConediameter(-)∆pPressuredrop(Pa)CDDragcoefficient(-)η

6、(d)CollectionefficiencyinthespecificdiameterdpParticlesize(m)(%)DCyclonediameter(m)µViscosity(Pas)DeVortexfinderdiameter(m)3ρgGasdensity(kg/m)fk(x)Objectivefunction(-)3ρpParticledensity(kg/m)FDDraggingforce(N)hConeheight(m)HCyclonebodyheight(m)I.IntroductionMp,

7、iistheconversionmomentumbetweensolidparticleandgasfluidflowCycloneseparatorshavebeenusedwidelyduringthisninNumberofparticleswithspecificdiameterincenturyasamajorgas-cleaningdevice.Thestandardinlet(-)designsavailablenow,wereperfecteddecadesagoonthenoutNumberofse

8、paratedparticleswithspecificbasisofpracticalexperienceandinsightbutoftendiameterinoutlet(-)withoutquantitativeapplicationoftheprinciplesofRepReynoldsnumberofparticles(-)engi