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1、HeatandMassTransferhttps://doi.org/10.1007/s00231-018-2336-0ORIGINALCFDanalysisofarotarykilnusingforplasterproductionanddiscussionoftheeffectsoffluegasrecirculationapplication123MertGürtürk&HakanF.Oztop&NugrohoAgungPambudiReceived:16December2017/Accepted:2
2、8March2018#Springer-VerlagGmbHGermany,partofSpringerNature2018AbstractInthisstudy,theCFDanalysisoftherotarykilniscarriedoutforexaminingeffectsofvariousparametersonenergyconsumptionandefficiencyoftherotarykiln.Thefluegasrecirculationusinginmanyapplicationsi
3、sausefulmethodforcombustingoffuelunburnedinthefluegas.Also,effectsoffluegasrecirculationonthecombustingoffuel,operatingtemperatureandefficiencyoftherotarykilnarediscussedinthisstudy.Therotarykiln,whichisconsideredinthisstudy,isusedinplasterplant.Twodiffere
4、ntCFDmodelswerecreatedandthesemodelsarecomparedaccordingtomanyparameterssuchastemperaturedistribution,mixturefraction,themassfractionofO2,CO,COandCH4inthecombustionchamber.Itisfoundthattheplasterplanthasagreatpotentialforanincreaseinenergyefficiency.Result
5、sobtainedforproducersofrotarykilnandburnerwillbeusefulfordeterminingbetterdesignparameters.2NomenclatureΓDiffusioncoefficient(m/s)23CConstantεRateconstantofturbulencekineticenergy(m/s)CpSpecificheatcapacity(kJ/kg∙K)αTurbulencemodelconstant!FOtherforces(N)μ
6、Dynamicviscosity(Pa∙s)GuTurbulencekineticenergyproductionrate(velocity)GbTurbulencekineticenergyproductionrate(buoyancy)!2gGravity(m/s)hEnthalpy(kJ/kg)IUnittensor.1Introductionii-thcontent.PConstantpressure(Pa)Themanydifferentindustriesarecausinggreenhouse
7、gasemis-ShRadiativeheattransferandcombustionratessionsduetothecombustionprocess.Recently,researchershaveuVelocity(m/s)studieddifferentmethodsforreducingenergyconsumptionandpollutioneffects.TheCFDanalysis,whichisoneoftheseGreekLettersmethods,canbeusedforimp
8、rovingenergyandexergyeffi-∇Gradientoperatorciencies,andalsoitispreferredasanoptimizationtool.τStresstensorIntheliterature,theCFDanalysisofdifferentindustrial3ρDensity(kg/m)furnacescanbefoundandoneofthoseindus
