HVAC system Design and simulation 空调系统设计 模拟.docx

HVAC system Design and simulation 空调系统设计 模拟.docx

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HVACsystemDesignandsimulation空调系统设计模拟

HVACSystemDesign

ACaseStudyusingSyracuseCenterofExcellenceHeadquarter

MAE553

Professor:

Jianshun（Jensen）Zhang

By:

PiotrMadej（GroupCoordinator）

LizdibierMadera

BenMezic

KristianMayer

QingyiZhang

ThomasLoiselle

TableofContest:

∙ProjectParticipationTable…………………………………..…………….………3

∙Abstract………………………………………………………..……….….………4

∙Introduction…………………………………………………….………………….5

∙DesignProcess…………………………………………………………………….8

∙Water,Gas,SprinklerSystem……………………….………………………..….12

∙ModelingDesignBuilder…………………...………………………..…………..14

∙Simulations………………………………………………………………………19

∙Building’sFeatures………………………………………………………………26

∙VolumetoSurfaceRatio…………………………………………..……………..30

∙AirSystem…………………………………………………………………...…..35

∙Recommendations&Improvements……………………..………………………40

∙References………………………………………………………………..………43

∙APPENDIX

TEAM#3ProjectParticipation

Task/Member:

PiotrMadej

KristianMayer

BenMezic

LizdibierMadeja

QingyiZhang

ThomasLoiselle

TaskA1:

Template

X

X

Shape

X

X

X

X

X

X

FloorSpace

X

X

Windows

X

X

Presentation

X

X

X

X

X

X

TaskA2:

Analysis/desingofHVAC

X

X

X

X

X

X

IEQ/energysymulations

X

X

X

Spacereq.BoundaryConditions

X

X

X

X

X

X

SystemComposition/Layout

X

X

X

ControlsVAV/CAW

X

X

ControlsVWA/CWA

X

X

AirSupplySystemAHU

X

SystemComposition

X

X

X

DuctSystem

X

X

X

X

EquipmentSelecting/Sizing

X

EquipmentSupplier/Manuf./Specs

X

Analyze/DesignHeating/CoolingWaterSys

X

X

X

X

X

X

SystemComposition/Layout

X

X

EquipmentSelection/Sizing

X

X

X

X

EquipmentSupplier/Manuf./Specs

EnergySupplySystem

X

X

Energy/IEQSymulations/Calcs

X

X

X

SimulationsUsingExcel

X

SimulationsUsingDesignBuilder

X

X

Presentation

X

X

X

X

X

X

FinalReport:

CoverPage

X

ProjectParticipation

X

Abstract

X

Introduction

X

DesignProcess

X

Water,Gas,SprinklerSystem

X

ModelingDesignBuilder

X

X

Simulations

X

X

Building'sFeatures

X

X

VolumetoSurfaceRatio

X

AirSystem

X

Recommendations&Improvements

X

References

X

X

X

X

X

X

APPENDIX

X

X

X

X

X

X

Poster:

CoverPage

X

Assumptions&Goals

X

X

BuildingModel&Info

X

X

SystemLayout/Components

X

AmountofEquipment/Specs

X

Suppliers&Manufactures

X

X

ParticipationTable

X

Conclusion&References

X

X

X

X

X

X

Abstract:

InthislabreportourteamdesignedaHVACsystemfortheCenterofExcellencebuildinglocatedinSyracuse,NY.DuringthedesignprocesswegatheredallthenecessarydatatoinspectandcalculateheatingandcoolingloadsfortheCoEbuilding.Ourteamsaswellasotherteamswereassigneddifferenttaskstosharebetweengroups.Inthedesignprocesswedefinedspacerequirementsandboundaryconditionsusingdifferentapproachestofigureoutthesystem’slayout.

Ourteamalsodesignedairsupplysystem,ductsystemforeachfloorinordertoequallydistributetheconditionedair,aswellasequipmentsizingandselection.WebuildaCoEbuildingmodelusingcomputersoftware“DesignBuilder”inordertorunenergyandIEQsimulations/calculationsandcomparethemwithourmanualresults.InourfinaldesignphasewehavefullydesignedHVACsystemincludingventilationsystem,gassystemtopowertheboilers,hotandcoldwatersystemsandElectricsystemstopowerthelightsandequipment.

Introduction:

Intoday’sworldnewandinnovativeideasarebeingcreatedtobuildstructuresinamoreefficientwaywhichconsumeslessenergy.Butinvestorsarenotwillingtotakeriskswithoutknowingfirstwhethertheideacanactuallysavetheamountofenergyitproposesto.Tosolvethisproblemprogramshavebeencreatedtosimulateenergystrategiesbeforetheyareactuallyimplementedonabuilding.SomeoftheseprogramsincludeEnergyPlus,Googlesketchup,DesignBuilderandEcotec.

InthisreportourteamfocusedontheCoEbuildingandit’sHVACsystemdesign.TheCoEbuildingisatestforenvironmentalandenergytechnologiesandbuildinginnovations.Itincludesallthehigh-endtechnologiesavailableinordertocarryoutresearchanddevelopment.

TheCoEbuildingreceivedLEEDplatinumratingduetoitsinnovativeandeco-friendlyapplications,whichare,savefortheenvironment.Thebuildingisusedforoffices,classroomsforstudents,publicspaces,indoorenvironmentalqualityandotherresearchlaboratories.

TheCoEbuildinghasfivefloorseachwithdifferentzonesandgreenfeatures.Someofthegreenfeaturesincludeavaporintrusionsystem,whicheliminatespotentialcontaminationbypreventingundergroundvaporsfromenteringthebuilding.AnurbanecosystemobservatoryisusedforastudythatwillassessSyracuse’surbanairquality,airflow,andtheeffectsofoutsideaironairqualityinside.Demand-ControlledVentilationsavesenergyinroomswhenroomsarepartiallyoccupied.Thebuildingshapeisnarrowwithmanywindowsprovidingnaturallight,andventilation.Thesouthsidefeatureshighlyinsulatedglasswithelectronicallycontrolledblindsthatprovidesolarheatandglarecontrol.Theceramicwhitedotsonthewindowspassivelyreduceglareandsolarheatgain.Mostoftheheatingandcoolinginroomsareprovidedbyceilingpanelsthatarecoveredwithcopperpipingthatcarrywarmorcoolwater.Theabovefeatureshelpedusinthedesignprocesstocreatemoreefficientenergysavingsystem.

Figure1:

CenterofExcellenceBuilding

OurHVACSystemdesigniscomposedofthreemainelements,whichincludemajorcomponentssuchas:

∙Airsystem

∙HotWatersystem

∙ColdWatersystem

TheairsystemprovidesfreshairsupplytothebuildingbasedontheASHRAEairqualitystandards.Basedonourcalculationsofheatingandcoolingloadsweselectedtwoair-handlingunitsforthebuilding,locatedinthemachineroomwithotherequipmentonthetopfloor.Inourdesignwereusedthepreheatedairtorecirculatethepreheatedairwiththefreshairinthesystem,thatwaywesaveenergy.

Airsystemcomponents,

∙Airoutlets-Usedforreturnandexhaustair

∙Heating/coolingcoils-Useshot/chilledwaterforthesystem

∙Preheater-Preheatsthefreshoutdooraircomingintothesystemduringcolddays

∙Supplyandreturnfans-Usedtopushinandouttheairfromthefacilityandcontrolstheairflow

TheHeatingsystemprovidesheatingventilationduringthecoldseason.Theheatingcoilsaswellasboilersandpumpsareusedintheprocess.Asmentionedinpreviousparagraphsthebuildingutilizesradiantceilingsandfloorpanelsthatalsoprovideheating.

Heatingsystemcomponents,

∙Boiler-Needgasinordertoheatwatertoaspecifictemperature

∙Heatpump-Supportstheheatingprocessbymovingwater

∙Hotwaterpump-Circulateswater,Specificisneededbecausenormalpipeswillbedestroyedbyhightemperaturesinthesystem.

∙Thermostat-Usedtoadjustthetemperature

Thecoolingsystemprovideschillairduringthehotseason,betterknownasair-conditionedair.Bothairhandlersareusingcoldwaterfromthegeneratorandradiantpanels.Duetogeothermalheatpumpsthecoldwatercomesfromthegroundloopunderthebuilding.

Coolingsystemcomponents,

∙Waterpumps-circulatethewaterinthesystem

∙GroundWaterpumps-Circulatethewaterintheloopdeepundertheground

∙Coolingtower-Tostorethewater

∙Values-Toopen/closesystem

∙Isolation-Oldpipeshavetobeisolatedduetocondensationbecausenakedpipeswouldresultinwaterdrippingandsoonerdamageofthesystem.

Basedonourassumptions,analysisandcalculationswehaveselectedthepropersystemfortheCoEbuildingthatwillprovidealltherequiredairqualityandbeefficientenoughtodecreaseenergyconsumptionandmakeiteco-friendly.

DesignProcess:

InthedesignprocesssectionweexplainallthenecessarystepsindetailshowwedesignedtheHVACsystemasateam.ThedesignprocessfortheHVACsystemforCenterofExcellencebuildingiscomposedofmultiplestages.Thedesignprocessissuchatimeconsumingprocedurethatcantakeuptomonthsevenayear.Whenitcomestobuildingdesign,thewholeteamofdifferentkindsofengineersisneededtodesignbuildingwithalltherequiredsystems.Inthisparticularcase,weworkedtogetherwithotherteamsinclasstocollectdataandinformationaboutCoEbuildingtostarttheproject.

Step1-InputDesignFactors/Aspects

Theclimatedatawascollectedincludingfactorssuchclimatezone,heatingandcoolingconditionsduringdifferentseasonsbecausethebuildingrequiresdifferentloadsofheating/coolingoverseasons.Verydetailedclimatedatawasnecessaryfortheprojectsuchtemperaturesthroughoutthedayforeverysingledayofeachseasonincludingwindspeed,direction,airpressure,solarradiationandprecipitation.TheCoEbuildingreceivedPlatinumLEEDcertificatetherefore,atmandpollutionplaycrucialroleinthedesign.Informationaboutozone,carbonmonoxideandothergasemissionwasstudiedcarefullytoallowusdesigneco-friendlysystemwithreducedemissionofpollutionandgasses.

Thesite/buildingwasanotherpartof