PPT模板下載：/moban/行業PPT模板：/hangye/節日PPT模板：/jieri/PPT素材下載：/sucai/PPT背景圖片：/beijing/PPT圖表下載：/tubiao/優秀PPT下載：/xiazai/PPT教程：/powerpoint/Word教程：/word/Excel教程：/excel/資料下載：/ziliao/PPT課件下載：/kejian/范文下載：/fanwen/試卷下載：/shiti/教案下載：/jiaoan/

內容九內容八內容七內容六內容五內容四內容三內容二內容一城市軌道交通專業英語PPT模板下載：/moban/標題八Part5ControlSignalUnit15BASUnit16標題八Part5ControlSignalUnit標題八Unit15Signal

ObjectivesTounderstandwhatasignalingsystemis.Toknowthedevelopmentofurbanrailsignaling.Tounderstandthefunctionsandimportanceofsignaling.標題八Unit15SignalObjectiv標題八Unit15Signal

ClassHour2hours標題八Unit15SignalClassHo標題八Unit15Signal

SentenceSectionA

Question:Whatcanametrosignalingsystemdo?Metrosignalingisacomplicatedandamazingsystem.UKhasalongerhistoryofmetrosignalingthananyothercountry.Metrosignalinghassimilaritieswithrailwaysignaling.Topreventanytraindelays,accidents,evencasualties,itisimportantthatasignalingsystemoperatedbyagroupofwelltrainedpeople.標題八Unit15SignalSentence標題八Unit15Signal

Themostcriticalrolethatsignalsplayinthemetrosystemistolocatethewhereaboutsoftrainsandtoprotecttrainsfromcollisions.Themostimportantcomponentsinametrosignalsystemareitselectromechanicalrelays.Ifametrosignalfails,thesignalinglightwillgotoredandthetrainwillstopuntilthefailuresareresolved.MostofmetrosignalshaveGreenontop,YellowinthemiddleandRedonthebottom.標題八Unit15Signal標題八Unit15Signal

DialogueSectionB

Question:Whatdoesametrosignalingsystemconsistof?WhatistherelationshipbetweensignalingsystemandATC?Lin:Doyouknowhowmanysystemsareincludedinametrosignalingsystemandwhattheyare?Peter:Itcontainssixsystems,movingblocksystem,traintestingsystem,automatictrainprotectsystem,automatictrainoperationsystemandautomatictrainsupervisingsystem.Lin:WhatistherelationshipbetweenATCandsignalingsystem?Peter:ATCsystemhasthreesubsystems—ATO,ATP,andATS.Theyarepartofametrosignalingsystem,andATCsupportssignalsystemandsignalingsystemcontrolsATC.標題八Unit15SignalDialogue標題八Unit15Signal

Lin:ThatmeansmetrosignalingsystemhasthesamefunctionsasATC?Peter:Yes,Itisnotonlysafeformetrooperation,butalsoconvenientforpassengers.Lin:Passengerscanreadtheinformationdisplayontheplatform.Peter:Youcanlearnwhattimenexttrainwillarrive,routeanddirection,etc.Also,somemoreinformationlikeweatherreport,roadconditionsareavailable.Lin:Howpowerfulthesystemis.標題八Unit15Signal標題八Unit15Signal

PassageSectionc

Question:Doyouknowwhatametrosignalingsystemis?

MetroSignalSignalingandoperationonmetrosysteminvolvestraincontrol,trainsignal,signageandtrainlength,etc.Today,metrotraincontrolisdonebyanAutomaticTrainControlsystem(ATC),whichisacombinationofthreesubsystems,ATO,ATPandATS.ATPseparatestrain,ATSroutestrains,andATOgathersinformationfrombothATSandATPtodirectlycontrolthetrains.標題八Unit15SignalPassageS標題八Unit15Signal

Themetrosignalinglightsworkjustliketrafficlightsforcars.Redmeansstop,andgreenmeansadvance.Thesignalinglightsareautomaticallycontrolledbythelocationofthetrains.Asoneofthetrainsmovesalongthetrack,itrelaysonthetracktosendthesignalofitslocationtothelights.Aredlightstaysonuntilaleadingtrainhasmovedasafedistance.標題八Unit15Signal標題八Unit15Signal

Before,metrosranfourcarandsixcartrains.However,therearenomorefourcartrainsusedinthesystemafteryear2000.Eveneightcartrainsareinservicenowadays.Thetrainlengthdecidesthesafedistanceprogrammedinthemetrosignalsystem.標題八Unit15Signal標題八Unit15Signalcomplicated\[kmplketd\]adj.難懂的，復雜的signaling\[sɡnl\]n.發信號；打信號similarity\[smlrti\]n.類似；相似點casualty\[kulti\]n.意外事故；傷亡人員；急診室critical\[krtkl\]adj.批評的，愛挑剔的；決定性的；評論的whereabouts\[werbats\]n.下落；行蹤；所在之處adv.在何處；靠近什么地方collision\[kln\]n.碰撞；沖突；（意見，看法）的抵觸resolve\[rzlv\]n.堅決；決定要做的事v.決定；分解；決心relay\[rile\]n.繼電器；接替v.轉播；接替Words&Phrases標題八Unit15Signalcompl標題八Unit15SignalExtensiveReadingSectionDTextA

HelpPointInnovationProject:HelpPointCommunicationSystemAlsoknownas:HelpPoint標題八Unit15SignalExtensive標題八Unit15Signal

Whatitis:TheHelpPointCommunicationSystemisanewtechnologypilotprogramthatputsmetrocustomersintouchwithTransitpersonnelviaaninteractivecommunicationsdevice.EachHelpPointdevicehastwobuttons,agreenINFORMATIONbuttontoaskfortravelinformationandaredEMERGENCYbuttontobeusedonlyinanurgentsituation.Benefits:HelpPointdevices:Haveaninstantlyidentifiabledesign.Areclearlylabeledandeasytouse.Offertwotypesofassistanceatonelocation.AllowcustomerstospeakwithaTransitrepresentativeaboutmetroservicebypressingthegreenINFORMATIONcallbutton.標題八Unit15SignalW標題八Unit15Signal

Whomcustomersspeakwith:NYCTransitStationAgentsanswermetroserviceinquiries;personnelfromNYCTransit'sRailControlCenter(RCC)respondtoemergencycalls.History:HelpPoint,whichbegantestingin2011,isamoresophisticatedversionoftheCustomerAssistanceIntercoms(“callboxes”),currentlyinmanymetrostations.Youmayalsobeinterestedtoknow:AHelpPointisonexhibitattheMuseumofModernArt(MoMA).

Source:/標題八Unit15SignalW標題八Unit15SignalTextB

RailroadSignaling

BasicDifferences(UK—US):

SignalMeaningsOnrailwaysallovertheworld,signalsareusedtoindicatetothedriverofatrainhowheshouldproceed.ThewaythisisdoneintheUS(andmostofEuropeexceptSpainandNorway)isquitedifferentcomparedwiththeUK.IntheUK(andothercountriesusingUKbasedsystems),signals標題八Unit15SignalTextBRa標題八Unit15Signal

aredesignedtoshowthedriverthestateoftheroadahead.Forexample,asignalwillshowthatthelineisclearaheadandwillalsosayhowfaraheaditisclear.Thedriver,usinghisknowledgeofthelineandofthetrainheiscontrolling,willmakeajudgmentabouthowfasthecansafelylethistraingoandwillproceedaccordingly.IntheUS,signalsshowdriversthespeedstheyareallowedtogo.Theydonotactuallyneedtoknowhowfaraheadthelineisclear.Thespeedtheyareallowedtodowilldependonthetypeoftrainthedriveriscontrolling.標題八Unit15Signalaredesi標題八Unit15Signal

ABSandInterlockingsIntheUS,liketheUK,signalsareclassifiedintotwogeneraltypes.IntheUKtheyarereferredtoasautomaticandcontrolled,intheUStheyareknownasAutomaticBlockSignals(ABS)andInterlockingsignalsrespectively.Thetwoclassificationsaresimilarinthatautomaticsignalsworkwithoutmanualcontrolswhilecontrolledorinterlockingsignalsusuallycoverjunctionareasandrequiresomeformofadditionalcontrolsoperatedbyasignaltower(signalboxinUK)orcontrolroom.標題八Unit15SignalA標題八Unit15Signal

OverlaporSafetyBlockAnotherfeatureofUSrailroadsignalsisthattheydonothavethe200yardoverlapsthatarenormalintheUK.TheusualmethodofprovidingasafetymarginbeyondastopsignalintheUSistoallocatethewholeofthenextblockastheoverlap.ThisissimilartotheprincipleadoptedonmetroswhichuseATP.

BiDirectionalSignalingManyUSlinesareequippedwithfullbidirectionalsignaling.Youwilloftenseeablockboundarywithtwosignals,onefacingineachdirection.Thesignalingoperatesexactlythesame,regardlessofthedirectionofrunning.標題八Unit15Signal標題八Unit15Signal

USSignalLayoutsAtrainpassingalongasignaledroutewillseeanarrangementofsignalswhichwillappearsomewhatasdescribedinthefollowingparagraphs.Every2milesorsothetrainwillpassanAutomaticBlockSignal(ABS).AllABSsignalsforalltracksandbothdirectionsarelocatedrightnexttotheblockentranceattheinsulatedrailjoint(IRJ).So,astheengineer(driver)passesfromblocktoblockitsalmostlikepassingthroughapaneofglass.Thisisenhancedbythefactthatforthemostpartthereisntmuchalongthewaysidebutatablocklimithewillseesignals,relayboxesandrailjoints.標題八Unit15SignalU標題八Unit15SignalOK,theengineerispassingblockafterblockandallthesignalshaveoneheadbutthenhegetstoablocklimitwherethesignalinhisdirectionhastwoheads.Thesearethedistantsignalsforaninterlocking.TheyarestillautomaticandstillretainanumberplatethatID'sthemasautomatic.Afterproceedingalittlefartherdownthelinetheengineerreachestheinterlockingentrance.Acrossalltracks,inhisdirectiononly,isalineofsignals.Thesesignalshavetwoorthreeheadsandnonumberplate,whichID'sthemasabsolute(stop)signals.Ifthereisaproceedindication,thetraincrossestheboundarydefinedbytheIRJandsignalsandenterstheinterlocking.Thetrainthenrumblesoverthepoints,itpassesthesignaltowerorrelayshed,rumblesoversomemorepointsand標題八Unit15SignalO標題八Unit15Signalreachesthe“exit”signals.Theexitsignalsactuallyhavenobearingonthistrainwhatsoeverbecausetheyareallfacingtheoppositedirectionforincomingtrains.Theentrancesignalsnotonlygoverntheinterlocking,butalsothenextblock.However,theexitsignalsandassociatedIRJdefineanotherboundaryand,afterthetraincompletelypassesthisboundary,isitoutoftheinterlocking,freeofdispatchercontrolandunderautomaticsignalrules.Notethat,whileanypartofthetrainisbetweentheHome(entranceandexit)signals,itisworkingunderinterlockingrules.OnceitcrossestheboundarydefinedbytheHomesignalsitisunderrule251or261operation.標題八Unit15Signalreachest標題八Unit15Signal

Thetraincontinuesontocompletethesamestepsthrougheachinterlocking.Everysooftenatrainwillpassfromoneinterlockingrightintoanother(someinterlockingsalsohavesubinterlockingsthatarecompletelyindependent).ThefirstABSlimitthetrainreacheswillbethedistantforoperationintheotherdirection.

Source:http://www.railway/USsig.shtml標題八Unit15SignalT標題八Unit16BASObjectivesToknowthedefinitionandfunctionsofBAS.TointroducethesystemofmetroBAS.TounderstandtheadvantagesofBAS.標題八Unit16BASObjectives標題八Unit16BASClassHour2hours標題八Unit16BASClassHour2ho標題八Unit16BAS

SentenceSectionA

Question:WhatisBAS?WhatismetroBAS?BAS(BuildingAutomationSystem)ismainlyusedincommercialHVACcontrolsystemsandenergymanagementsystem.BASisnotlimitedtojustHVACapplications.Italsohastheabilitytometerelectricity,gas,water,steam,hotwater,chilledwaterandfuel.BASengineersselecttheproperHVACcontrolsystemandprogramstocontrolthevarioustypesofHVACsystemsindifferentmetrostations.標題八Unit16BASSentenceSecti標題八Unit16BAS

Tobemoreeffective,theBASsystemshouldbeinstalledandtunedproperlyAbuildingcontrolledbyaBASisoftenreferredtoasanintelligentbuilding,ametrostationcontrolledbyaBAScanbereferredtoasasmartstation.ManyBAScanbeaccessedfromanylocationwithaninternetconnection.標題八Unit16BASTob標題八Unit16BAS

DialogueSectionB

Question:WhatdoesametroBASconsistof?(TrainerLinischeckingwhetherstudentsstillremembertheknowledgelearnedinthelastlesson.)Lin:Peter,whatdidwetalkaboutlastclass?Peter:It'sBAS.Lin:WhatisthefullnameofBAS?Peter:It'sBuildingAutomationSystem.Lin:Canyoutellmeitsbasiccomponents?Peter:Ithasfourbasicparts,bigsystem,smallsystem,watersystemandtunnelventilationsystem.標題八Unit16BASDialogueSecti標題八Unit16BAS

Lin:Whatisthedifferencebetweenbigsystemandsmallsystem?Peter:Aventilationandairconditioningsysteminapublicstationareaiscalledbigsystem,thesysteminastationequipmenthouseiscalledsmallsystem.Lin:HowdoesBASwork?Peter:Therearemanysensorsconnectedtoeachsystem.Thesensorsmeasuretheirsurroundingenvironmentfromdifferentlocations,thencollectphysicaldataandsendthemtotheBAScomputer.BAScomputerwillcalculateandanalyzethedatatocontrolthewholesystem.Lin:Thatiscorrect.Goodjob,Peter.NexttimewearegoingtotalkaboutFAS.標題八Unit16BASLin:標題八Unit16BAS

PassageSectionC

Question:DoyouknowthefunctionsandadvantageshavingBASinametrosystem?

BASBAS(BuildingAutomationSystem)itselfisanenergyandcomfortmanagementsystem.ItintegratesthedifferentsystemsinabuildinglikeHVAC,lighting,verticaltransportation,firesafetyandsecurityinordertoprovidecoordinatedcontrolofthebuilding'sfunctions.BASinametrostationcancontrolthestationtemperaturetomaximizeenergysavings,providingoptimumcomfortandsafetyforpassengers.標題八Unit16BASPassageSectio標題八Unit16BAS

BASjoinsmechanicalandelectricalsystemsandequipmentwithmicroprocessors,communicatingwitheachother.Inafireemergency,aBAScanrespondquicklytocontroltheventilationsystemtominimizethespreadofsmoke.Italsocoordinatesallofthefunctionsinametro,suchasshutingdownelevatorsintheaffectedarea,activatingfiresuppressionsysteminthefirelocation,andopeningsecurityandemergencydoorsforpassengersandemergencypersonnel.BASshouldoffertheabilitytosendalarmsviaemailandtelephonetoalertstationmastersorengineersofsystemproblemsandfailures.標題八Unit16BASBASj標題八Unit16BAS

commercial\[kml\]n.商業廣告adj.商業的；營利的；靠廣告收入的tune\[tjun\]n.曲調；和諧；心情v調整；使一致；調音intelligent\[nteldnt\]adj.智能的；聰明的；理解力強的access\[kses\]n.進入；使用權；通路v.使用；存取；接近physical\[fzkl\]n.體格檢查adj.物理的；身體的；物質的spread\[spred\]n.傳播；伸展v.傳播，散布；展開Words&Phrases標題八Unit16BAScommercia標題八Unit16BAS

maximize\[mksmaz\]v.最大化；對……極為重視；達到最大值minimize\[mnmaz\]vi.最小化；減到最少；極度輕視electromechanical\[lektrmknkl\]adj.電動機械的，機電的vertical\[vtkl\]n.垂直線，垂直面adj.垂直的；頭頂的optimum\[ptmm\]n.最佳效果；最適宜條件adj.最適宜的microprocessor\[makroproses\]n.微處理器activate\[ktvet\]v.刺激；使活潑；產生放射性suppression\[spren\]n.抑制；壓抑via\[va\]prep.渠道，通過；經由Words&Phrases標題八Unit16BASmaximize標題八Unit16BAS

ExtensiveReadingSectionDTextA

ABriefHistoryofAirConditioningontheNewYorkMetroOneofthenicethingsaboutNewYorkCityinthesummertime,asidefromallthepeoplefleeingelsewhere,isthereliablecomfortofairconditionedmetrocars.“Itwasn'talwayslikethis,”BenjaminKabakofthetransitblog2ndAve.Sagasrecentlyremindedus.Inagreatretrospectivethatdeservesitsannualbumptothefrontpage,Kabakguidesusthroughthe“turbulent”historyofhowNewYorkfinallycontrolledthetemperatureonitsmetrotrains.標題八Unit16BASExtensiveRea標題八Unit16BAS

Kabakbringsthestorybackto1955andatrialrunthatfaredprettywell.Thecity'stransitauthorityoutfittedametrocarwithanairconditioningsystemandmeasuredthetemperatureinsideat68to73degrees.Theauthoritiesdidn'tpickthebestdayforsuchatest—outsideitwasjust62degrees—buttheydeclaredtheireffortasuccessanyway.Theairconditionedcarwashotterthanthecitystreets,butitwasstillabout15degreescoolerthantheothercars.標題八Unit16BASKabak標題八Unit16BAS

Stillitwasn'tuntil1967thatthecityfoundalongtermsolutiontoitsairconditioningproblem,withTheNewYorkTimescallingthenewcoolingsystemsontheFtrain“ahit”.Itwouldbemanymoreyearsbeforetheentirefleetcaughtupwiththenewstandard.Inthemeantimeridersemployedvarioustrickstodeterminewhichcarsoneachtraincarriedtheluxury.Somelookedforasmallgrillontheroofofthecar;otherslookedforclosedwindows.標題八Unit16BASStill標題八Unit16BAS

Kabakleavesoffin1983,whenonlyhalfofthecity'smetrocarswereairconditioned,butthenextdecadesawenormousprogress.By1993roughly99percentofNewYork's6,000metrocarswereairconditioned—with7trainriderstheunlucky1percent.Todayeverycaristemperaturecontrolledandifitscoolingsystemdoesn'tworkthentransitofficialsaren'tsupposedtoaddittoatrain.Ofcoursesometimestheydo,likewhenMayorBloombergfoundhimselfinaswelteringcarbackinAugustof2002.標題八Unit16BASKabak標題八Unit16BAS

InfactmanyattemptstocooldownNewYork'smetrocars—ifnottechnically“aircondition”them—camewellbefore1955.Oneearlyeffort,frombackinAugustof1910,equippedanI.R.T.trainwithfourelectricceilingfans.Thefanswereprettymodestdevices,operatingatonetwelfthofonehorsepower,andeventhesuperintendentinchargeofthenewsystemadmittedtotheTimesthattheeffectwasmostlypsychological:“Itisn'treallyanycooler.We'rejuststirringuptheair.Butyounoticehowmuchmorecomfortableitis.Now,thereisn'tanyChristianScienceaboutthis.Ifyoudon'tbelieveit,gointothenextcar,wheretherearenofansandfeelthedifference.”標題八Unit16BASInf標題八Unit16BAS

The(eventual)successofNewYork'sairconditionedcarscameatapricemetroridersarestillpayingtoday.Theenergyneededtorunthecoolingsystemsemitsagreatdealofheatthatgetstrappedinthemetrostationsastrainsidleforpassengers.Inotherwords,asmetrocarshavecooleddown,metroplatformshaveheatedup.“Noquestionit'satradeoffhavingmetrocarsthatareairconditioned,”onetransitauthorityspokesmantoldtheTimesbackin1989.標題八Unit16BASThe(標題八Unit16BAS

Schemestocooldownthestationsthemselvesdatebackasfarasschemestocooldownthecars.InJuneof1905,forinstance,thecityinstalledadozenbasicofficefanstoventilatetheBrooklynBridgestation.Riderswelcomedtheattempt,accordingtotheTimes,buttheonlythingitseemedtoaccomplishwastomakethestationdarker,becauselightshadtoberemovedtoprovidethefanssufficientelectricity.(Inthesamearticleascientistcallsthedampstationairhealthybecauseit's“pregnantwithozone”,whichwasconsideredgoodforfightingmalaria.)標題八Unit16BASSche標題八Unit16BAS

Acenturyandchangelaterthesituationisn'tmuchdifferent.InAugustof2009WNYCtookdigitalthermometersontovariousplatformsaroundthecityandreportedtemperaturesrangingfromtheupper90sallthewayto106whenatrainpassed.(Itdidn'ttakelongforreporterBethFertig'shairtostart“lookingreallyfrizzy”.)EvendirectlyunderafanneartheStraininTimesSquarethetemperaturewasstillaripe91degrees.ThecoolestplatformswereatGrandCentralStation—chilledairispipedinfromthemainterminalabove—whichmeasuredinat87degrees.標題八Unit16BASAce標題八Unit16BAS

Othercitiescontrolthetemperatureoftheirstationsaswellastheircars.TheplatformsinWashington,D.C.,arecooledby“chillerunits”thatkeepstationsareported6degreescoolerthanoutsidefromMaytoOctobereachyear.ThequestionofwhyNewYorkcan'tdothesamehasbeenaskedandansweredmanytimes,butNewYorkmagazineofferedaconcisereasonafewAugustsback:標題八Unit16BASOther標題八Unit16BAS

There'slittleformalventilationinthemajorityofNewYorkCitystations.Instead,airispassivelyreleasedthroughceilinggratesandcirculatedwhentrainsblastthroughthetunnels.(It'simpossibletoprovideairconditioninginstations,becausethesystemwasn'tbuiltwithspaceforthemachinery,andtherearetoomanyopeningstothestreet.)In1999,theMTAdidbegininstallingasystemcalledregenerativebraking,whichcapturessomeofthereleasedheatfromthetrains'brakesandfeedsenergybackintothethirdrail,butthatchangedlittle.標題八Unit16BASThere標題八Unit16BAS

Butwhilethecitymayhavetroubleretrofittingolderstationsforairconditioning,itintendstocontroltheclimateonfutureplatforms,suchastheSecondAvenuelineandthewestwardextensionofthe7train.Onwardanddownwardwiththeheat.

Source:/commute/2012/08/briefhistoryairconditioningnewyorkmetro/2952/標題八Unit16BASButw標題八Unit16BAS

TextB

EnergySavingofMetroHVACSystemTheBeijingMetroisabackbonetransportationnetworkthatservestheurbanandsuburbandistrictsofBeijingmunicipality.Ithas17lines,227stationsand456kmoftrackinoperation,runningbytwocompanies,BeijingMTR(operates14lines)andHongKongMTR(operates3lines).ItranksthethirdinlengthintheworldafterSeoulandShanghai,andservesmorethan7.5millionspassengersaday,whichisthebusiestinChina.Itservedtotallymorethan2.46billionpassengersin2012.標題八Unit16BASTextBEnergy標題八Unit16BAS

Becauseofitslargescaleandheavyload,Beijingmetroconsumesagreatamountofenergyeveryday.AsurveyontheenergyconsumptionofBeijingmetrowasconductedin2008.Atthattime,BeijingmetrohadonlyfivelineswhosedailyenergyconsumptioninApril2008andinJuly2008aresummarizedandcompared.Itshowedthatthedailyenergyconsumptionofthemetrolinesrangedfrom0.6milliontonear5millionkW/hperday.Therewasasteepmorethan30%incrementofenergyconsumptionfromApriltoJulyineachline,indicatingthepotentialenergyconsumedbyairconditioningsubsystemsforcoolingandventilationinthesummerseason.標題八Unit16BASBeca標題八Unit16BAS

Inthelastyear(2012),wetookamoredetailedstudytotheenergyconsumptionofBeijingMetrotoexaminetheelectricityconsumptioninafinergranularity.Wedisaggregatetheoverallconsumptionintoconsumptionoftraindraggingsubsystem,lightingsubsystem,airconditioningsubsystemandothersubsystems.TheinvestigationwasconductedinlineAoperatedbyHongKongMTR.Forthesakeofinformationprivacy,thenamesofthelineandthenamesofthestationswillbesetanonymousinthispaper.Ourinvestigationresultsshowedthattheconsumptionofairconditioningsubsystemsrangedfrom31%to40%intheinvestigatedmetrostations.Inparticular,theairconditioningsubsystemofthelineconsumed標題八Unit16BASInt標題八Unit16BAS

morethan18,190,000kWhelectricitypermonthinthesummerseason.Forenergysavingpurpose,ifitwerepossibletoreducetheenergyconsumptionoftheairconditioningsubsystemsafewpercents,impressivequantityofelectricitywouldbesaved.Particularlyinthreestations(S1,S2,S3)inlineA,weconductedfurtherresearchbydeployingenvironmentmonitoringsensors,smartmetersandtemperatureandstatesensorsintotheHVAC.Thepassengerflowisrecordedbytheticketcheckingsystems.Basedonthesedata,weinvestigatetheruntimefeatures,loadandsupplysignaturesoftheHVACsubsystems.Thestudyshowedthat:thereweremanyoperatingproblemsincurrentairconditioningsystemsinthemetrostations,including:標題八Unit16BASmorethan18,標題八Unit16BAS

1)themismatchingofloadsandsupplies.2)Controlisnotadaptivetothevariationofenvironmentsandpassengerflows.3)controlproblemsregardingthepumpsandvalvesetc.Toaddresstheseproblem,wedevelopedanautonomouscontrolsystemtosaveenergyforHVACsystems.

FromApril2013toJuly2013,wespentfourmonthstodesign,constructanddeploytheautonomousHVACcontrolsystemsforthethreemetrostationsbasedontheinsightlearnedfromthefieldstudies.ThedesignemphasizedadaptionoftheHVACsystemtomatchitscoolingsupplytothevariationoftheheatingloads.Forpracticalconsiderationsofsystemreliability標題八Unit16BAS1)th標題八Unit16BAS

andtheinformationlimitation,wedesignedrulebasedadaptivecontrolstrategiesandimplementedthesestrategiesbydeployingcontrolunits,frequencyadapters,andautomaticvalvesetc.Thesystemshaveworkedwellthroughthesummerseasonof2013.Uptonow,bytheenergylogscollectedinthelastsummer,theresultsshowedthattheautonomouscontrolsystemnotonlyprovidedsatisfactoryindoortemperatureandhumidity,butalsoreducedtheenergyconsumptionofthethreestationsintherangefrom20%to38%.Somefurtherresearchdirectionsandinsightslearnedfromcurrentdeploymentsarediscussed.

Source:Sustainableenergymanagementforundergroundstations,2011Beijingmetro,Oct.2013.PageVersionID:576457338.標題八Unit16BASandtheinfoTHANKS!THANKS!PPT模板下載：/moban/行業PPT模板：/hangye/節日PPT模板：/jieri/PPT素材下載：/sucai/PPT背景圖片：/beijing/