HTRI-加热炉-模拟

®ConvectionModule4©HeatTransferResearch,Inc.Allrightsreserved.Confidential:ForHTRImemberuseonly.ObjectivesDescribeconvectioncalculationsIntroduceconvectionmethodsDemonstrateconvectioncalculation(Example4)Analyzeconvectionreports©HeatTransferResearch,Inc.Allrightsreserved.Confidential:ForHTRImemberuseonly.ConvectionSectionConsistsofoneormoretubebundlesdownstreamfromfireboxProvidessecondaryheatrecoveryImprovesthermalefficiencyMaycontainmultipleprocessfluidsHaselementsofstackgeometryStackdraftcoveredinanothermodule©HeatTransferResearch,Inc.Allrightsreserved.Confidential:ForHTRImemberuseonly.ConvectionSectionHotfluegasConvectionSectionRadiantSection©HeatTransferResearch,Inc.Allrightsreserved.Confidential:ForHTRImemberuseonly.GeometryPlain,high-finned,orstud-finnedtubesUpto10processfluidsMaximumof24tubes/rowMaximumof99rows/fluidStaggeredorinlinelayoutsTubegeometryspecifiedtorowlevel©HeatTransferResearch,Inc.Allrightsreserved.Confidential:ForHTRImemberuseonly.GeometryInternaltubemetaldatabank–User-definedmaterialsOneconvectionfluidflowtofireboxProcessfluids“skip”rows©HeatTransferResearch,Inc.Allrightsreserved.Confidential:ForHTRImemberuseonly.SolutionTechniqueXace®IncrementationConvergencelogicEachprocessfluidsolvedAssingleXacebundleInorderstartingwithfluidclosesttofluegasentrance©HeatTransferResearch,Inc.Allrightsreserved.Confidential:ForHTRImemberuseonly.SolutionOrderFluegasfromfireboxProcessfluidProcessfluidProcessfluid123Run1Run1Run2Run2Run3Run3©HeatTransferResearch,Inc.Allrightsreserved.Confidential:ForHTRImemberuseonly.MethodsTubesideHTRIheattransfer/pressuredropmethodsSingle-phaseBoilingAPI530heattransfermethodOptional©HeatTransferResearch,Inc.Allrightsreserved.Confidential:ForHTRImemberuseonly.MethodsFlueGasHTRIheattransfer/pressuredropmethodsDocumentedinHTRIACseriesreportsBasedoncrossflowexchangerdataESCOAmethodOptionalGraygasradiationconsideredDirectradiationfromfireboxconsideredMustbeenabled©HeatTransferResearch,Inc.Allrightsreserved.Confidential:ForHTRImemberuseonly.RequiredInputOverallgeometryWidth/heightTuberowsNumberoffluidsTubesectiongeometryTubetypeTubepitchTubes/rowTubelength©HeatTransferResearch,Inc.Allrightsreserved.Confidential:ForHTRImemberuseonly.RequiredInputProcessfluidconditionsFlowrateInlettemperaturePhase(e.g.,single-phaseorboiling)Fluegasconditions(standaloneonly)TemperaturePressureFlowrateComposition©HeatTransferResearch,Inc.Allrightsreserved.Confidential:ForHTRImemberuseonly.RequiredInputProcessfluidpropertiesTransportproperties(e.g.,density)Heatreleasecurve(onlyforboiling)Canuseexternalpropertypackages©HeatTransferResearch,Inc.Allrightsreserved.Confidential:ForHTRImemberuseonly.Example4StandaloneConvectionSection10tuberows2processfluidsPlainandhigh-finnedtubes©HeatTransferResearch,Inc.Allrightsreserved.Confidential:ForHTRImemberuseonly.Example4StandaloneConvectionSectionStartnewcaseSelectConvectioncasetypeSpecifygeometryandprocessconditionsfromtablesonfollowingslidesRuncase©HeatTransferResearch,Inc.Allrightsreserved.Confidential:ForHTRImemberuseonly.Example4FlueGasProcessFluid2ProcessFluid1Row1Row10©HeatTransferResearch,Inc.Allrightsreserved.Confidential:ForHTRImemberuseonly.StackGeometryBundles2Sootextinctioncoefficient(1/m)0.0**Use0forgasfiring©HeatTransferResearch,Inc.Allrightsreserved.Confidential:ForHTRImemberuseonly.ProcessFluid1Compositionn-UndecaneFlowrate(kg/s)50Inlettemperature(°C)204Inletpressure(kPa)300PhaseLiquidFoulingfactors(m2K/W)0.00©HeatTransferResearch,Inc.Allrightsreserved.Confidential:ForHTRImemberuseonly.ProcessFluid2Compositionn-DecaneFlowrate(kg/s)38Inlettemperature(°C)149Inletpressure(kPa)300PhaseLiquidFoulingfactors(m2K/W)0.00©HeatTransferResearch,Inc.Allrightsreserved.Confidential:ForHTRImemberuseonly.FlueGasCompositionMole%Carbondioxide10.487Water14.751Nitrogen70.215Oxygen3.148Sulfurdioxide0.517Argon0.882Flowrate(kg/s)10.1Inlettemperature(°C)1040Inletpressure(kPa)103.421©HeatTransferResearch,Inc.Allrightsreserved.Confidential:ForHTRImemberuseonly.AmbientAirRelativehumidity(%)25Temperature(°C)26.7Pressure(kPa)101.325©HeatTransferResearch,Inc.Allrightsreserved.Confidential:ForHTRImemberuseonly.ProcessLayoutBundle1LayoutConvectionHeatedlength(m)6.1Tuberows2Tubesperrow12Parallelpasses4LayoutpatternStaggeredCountercurrentYesSettingloss(%)2©HeatTransferResearch,Inc.Allrightsreserved.Confidential:ForHTRImemberuseonly.ProcessLayoutBundle2LayoutConvectionHeatedlength(m)6.1Tuberows8Tubesperrow8Parallelpasses4LayoutpatternStaggeredCountercurrentYesSettingloss(%)2©HeatTransferResearch,Inc.Allrightsreserved.Confidential:ForHTRImemberuseonly.BundleLayout101.6mm101.6mm304.8mm101.6mm203.2mm203.2mm101.6mm101.6mm123123123123T2654654654654T2123123123123T2654654654654T2789789789789T2121110121110121110121110T2131415131415131415131415T2181716181716181716181716T21920192019201920T12221222122212221T1©HeatTransferResearch,Inc.Allrightsreserved.Confidential:ForHTRImemberuseonly.BundleLayoutPlaintubewallthickness(mm