大气污染控制工程试题3
发布时间：
Thistestisdividedintotwosections.SectionⅠcanbecompletedwiththehelpofthetextbooksandnotebooks.SectionⅡmustbefinishedbyyourselveswithoutthehelpofanymaterial.AllofthetestshouldbefinishedinEnglish.
Thefollowingdatamaybeusefulforyourtests.1.Molecularweight
air=29,toluene=92,acetone=582.Conversionfactors
K=℃+2731feet=0.3048m1cp=0.001kg/m·s1atm=1.013×105Pa3.Thepropertiesofairinthestandardconditions(20*C,1atmandotherconstants
airviscosity:μ=0.018cpairdensity:ρ1.204kg/m3accelerationofgravity:g=9.8m/s2
universalgasconstant:R=8.31J/mol·KPartA
Directions:Youmustgivethedefinitionsofthefollowingterms,usingsimpleandreasonableexpressions.(3’×51.Threshold
2.Cost-benefitphilosophy
3.Terminalsettlingvelocity
4.Diffusionmechanism(forparticlescollection
5.Adiabaticlapserate
PartB
Directions:Youmustgivetheanswersforthefollowingquestions,withsimpleandreasonablesayings.(4’×5
1.Whatistheschematicofairpollutionprocess?
2.Whatisthebasicideaofwallcollectiondevice?
3.Howdoesglobalwarmingtakeplace?
4.Howdothetemperatureinversionstakeplace,andwhataretheharmfuleffectsoftemperatureinversions?
5.Pleaseexplainthesourcesofsulfurpollutionandtheircontrolmethods.PartC
Directions:InPartCyouwillgivetheanswersindetailaccordingtotherequirementsofeachquestion.(15’
1.Pleaseexplaintheparticlescollectionmechanismsofthesurfacefilter,depthfilterandscrubbers.
PartA
Directions:Thereare20questions.Youwillreadthequestionsandalloftheanswerscarefully.Thenyoumustfilltherightanswerintheblankets.Beingcarefulthateachquestionhasoneormorerightanswers(1’×20
1.Thefourmajorairpollutantsare(
A.CO2B.VOCsC.SOxD.NOxE.ozone(O3F.particulatepollutants
2.Whichofabbreviationshavethe 