化工原理英文教材chapter1

UnitOperationOfChemicalEngineeringFluidMechanicsandHeatTransferIntroductionAbouttheCoursesandtimeschedulingLecturing(theory)：14weeks,4classeseachweekAbouttheExperiments(Contents,groups,location)：6experiments,2groupsperclass,2ndfloorinbuilding15BackgroundWhatisthetextbook?UnitOperationsofChemicalEngineering.ItismostpopularinChem.Eng.majorinUSAuniv.Authors?WarrenL.McCabe,JulianC.SmithandPeterHarriott.TheSixtheditionCoursePolicies&GradingStandardFinalExamfortheorycourseParticipation(includingattendance,Assignments)andMidtermExam)Experimentgradebasedontestandexperimentalbehavioraswellasreport.LearningApproachesMainlyLearning:1)processprinciples;2)structureoftypicalequipment;3)designcalculations;4)selectionoftypicalequipment;5)operatingmethods;6)enhancementofunitoperations.LearningApproachesForeachoftheunitoperations,mainlylearningthefollowings:1)Materialbalances;2)Energy/Enthalpybalances;3)HeatandMomentumtransferrates;5)Operationrelationships.Preparinglessonsorpreviewbeforeclass→ReviewafterclassDon'ttakethecoursejustforthegrade.Practicemakesamaster.Ifyoudon'tpractice,youwon'tlearnit.HistoryofChem.Eng.1Firstperiod:intheendof19thcentury,IndustryChemistrycameout.2Secondperiod:inthebeginningof20thcentury,especiallyin1923,UnitOperationsofChemicalEngineeringcameout.3Thirdperiod:from1950-1960,TransportPhenomenaappeared.4Fourthperiod:in1970s,Knowledgeexposition,manysubjectsjoinedtogether.Lotsofnewsubjectsappeared,suchasenvironmentalchemicalengineering,biochemicalengineering,energychemicalengineering.5Fifthperiod:from1980s-1990s,MITsuggestedIntegratedchemicalengineering,andregressiveengineering.6Sixthperiod:inthe21stcentury.Greenchemistry,biochemorphicChem.Eng.ideaswasputforward.Chapter1UnitsandDimensions1UnitsSI,English(British),Engineeringsystems2DimensionsDefinition:eachprimaryquantitymayberepresentedbyaletterwhichsymbolizesthatquantity,thisletteriscalleddimension.ForSIsystem,Lforlength,Mformass,Tfortemperature,fortime.3Unitconversion.Example:whatisthedimensionandunitofdensity,inSIsystem?Density=M/L3(dimension)=kg/m3(unit)Problem:whatisthedimensionandunitofforceForheatcapacityCp,inSI?Unitconversion:P=760mmHg=?mH2O=?atm=?N/m2