化工原理英文肯教材chapter1

化工原理英文教材

chapter1Introduction·AbouttheCoursesandtimeschedulingLecturing(theory):14weeks,4classeseachweek·AbouttheExperiments(Contents,groups,location):6experiments,2groupsperclass,2ndfloorinbuilding15Background·Whatisthetextbook?UnitOperationsofChemicalEngineering.·ItismostpopularinChem.Eng.majorinUSAuniv.·Authors?WarrenL.McCabe,JulianC.SmithandPeterHarriott.·TheSixtheditionCourse

Policies&GradingStandard·

Final

Examfor

theory

course·

Participation

(includingattendance,

Assignments)

andMidtermExam)·

Experiment

gradebasedon

test

andexperimentalbehavioraswellasreport.LearningApproaches·

MainlyLearning

:·

1)processprinciples

;·

2)structureoftypicalequipment

;·

3)designcalculations

;·

4)selectionoftypicalequipment

;·

5)operating

methods

;·

6)enhancementofunitoperations.LearningApproaches·

Foreachof

theunit

operations,mainlylearningthe

following

s

:·

1)Materialbalances

;·

2)Energy/Enthalpybalances

;·3)Heat

and

Momentumtransferrates

;·

5)Operationrelationships.·Preparinglessonsorpreviewbeforeclass·→Reviewafterclass·Don"ttakethecoursejustforthegrade.·Practicemakesamaster.Ifyoudon"tpractice,youwon"tlearnit.HistoryofChem.Eng.·1Firstperiod:intheendof19thcentury,IndustryChemistrycameout.·2Secondperiod:inthebeginningof20thcentury,especiallyin1923,<UnitOperationsofChemicalEngineering>cameout.·3Thirdperiod:from1950-1960,TransportPhenomenaappeared.··4Fourthperiod:in1970s,Knowledgeexposition,manysubjectsjoinedtogether.Lotsofnewsubjectsappeared,suchasenvironmentalchemicalengineering,biochemicalengineering,energychemicalengineering.·5Fifthperiod:from1980s-1990s,MITsuggestedIntegratedchemicalengineering,andregressiveengineering.·6Sixthperiod:inthe21stcentury.Greenchemistry,biochemorphicChem.Eng.ideaswasputforward.Chapter

1UnitsandDimensions·

1

Units·

SI,

English

(British),

Engineeringsystems

·

2Dimensions·

Definition:eachprimaryquantitymayberepresentedbyaletterwhichsymbolizesthatquantity,thisletteriscalleddimension.·

ForSIsystem,Lforlength,Mformass,Tfortemperature,for

time.·

3Unit

conversion.·

Example

:what

is

thedimensionandunit

of

density,

inSI

system?·

Density=M/L3(dimension)=kg/m3(unit)·

Problem

:what

is

t