ASHRAEIESNA-Standard-901教学讲解课件.ppt

1、 2007 American Standard All rights reservedAn Inside Look at ANSI/ASHRAE/IESNAStandard 90.1-2019Mick Schwedler,PEManagerTrane Applications EngineeringChair,SSPC 90.1Energy Standard for Buildings ExceptLow-Rise Residential Buildings 2008 TraneHelp you gain aworking knowledge ofASHRAE Standard 90.1 20

2、08 TraneASHRAE Standard 90.1-2019Topics for Todays DiscussionsBrief historysImplementationuCodesuU.S.military requirementsuLEED green building rating programsContentsuTitle,purpose,scopeuAspects of building addressed by provisions 2007 American Standard All rights reservedASHRAE Standard 90.1-2019Br

3、ief history Milestones Plan for reprints Scope of 2019 revision 2008 TraneHistorical Timeline90.1-2019minorrevisions90.1-2019updates,reorganization90.1-2019major rewrite90.1-1989updated90.1-1975first issued90.1-1980updated1990200020191970198090.1-2019Updates 2008 TraneASHRAE Standard 90.1Publication

4、 PlansLast published in late 2019sFuture reprints at 3-year intervalsuCoordinated with model building codesuPrevious version plus all published addenda since last reprint u90.1-2019 planned for BOD approvalin June 2019 2008 TraneASHRAE Standard 90.12019 Changes from 2019sIncorporates 42 addenda publ

5、ished since 90.1-2019 was released 2008 TraneASHRAE Standard 90.1Scope of 2019 Updatenew in201990.1Marks a noteworthy change from 90.1-2019applicationTIPMarks an application tip,not a standard requirement 2007 American Standard All rights reservedASHRAE Standard 90.1-2019Implementation Model codes U

6、.S.government Outside U.S.LEED program 2008 TraneASHRAE Standard 90.1 andModel CodesASHRAE Standard 90.1 is adopted by:uAmerican National Standards Institute(90.1-2019)uNational Fire Protection AssociationuInternational Code Council(International Energy Conservation Code)2008 TraneASHRAE Standard 90

7、.1 andEnergy CodessIECCChapter 8 adopts 90.1-2019 by referencesIECCChapter 7 describes an alternate path for complianceuIncludes many provisions of 90.1-2019uASHRAE is proposing code changes to increase stringencyInternational Energy Conservation Code(IECC)2008 TraneASHRAE Standard 90.1 andState Ene

8、rgy CodesAsked DOE for extensionMeet or exceed 90.1-2019,2019,or 201990.1 being considered(state bldgs)(state bldgs)(voluntary)(state bldgs)(July 1,2019)(state bldgs)(optional)2008 TraneASHRAE Standard 90.1 adoption byU.S.Department of Defense“2-1 MANDATORY ENERGY AND WATER CONSERVATION CRITERIA.Fam

9、ily housing(residential)shall be designed and constructed in accordance with the latest Energy Star standards,per other appropriate service-specific criteria and guidance.Other facilities shall be designed and constructed in accordance with the latest edition of ASHRAE Standard 90.1.”Excerpt from Un

10、ified Facilities Criteriahnd.usace.army.mil/techinfo/ufc/081602_UFC3-400-01.pdf 2008 TraneASHRAE Standard 90.1 adoptionOutside the U.S.United StatesASHRAE Standard90.1-2019ThailandMajor changesbased on buildingenvelope studiesCanadaSimilar or higherefficiency levelsBrazilLaw 10295(2019),Energy Effic

11、iencyStandardsChinaModifying forhigh local ambientwet bulbs 2008 TraneASHRAE Standard 90.1 andLEED-NC Version 2.2sEAp2:Minimum energy performanceuMandatory provisions of 90.1-2019 anduPrescriptive requirements or 14%better than 90.1-2019sEAc1:Optimize energy performanceuAwards points for improving p

12、erformance rating of the design building vs.baseline building at least 14%better than 90.1-2019 2008 TraneLEED NC 2009:EAp2Minimum energy performancesOption 1:performance compliance pathuMandatory provision(5.4,6.4,7.4,8.4,9.4,and 10.4)uBaseline building complies with Appendix G Building PRMu10%bett

13、er than 90.1-2019 for new construction,5%better for existing buildingsOption 2:prescriptive compliance pathuASHRAE AEDG lsmall office buildings 2019lsmall retail buildings 2019lsmall warehouses and self-storage buildings 2019 sOption 3:prescriptive compliance pathuAdvanced Buildings Core Performance

14、 Guide 2008 TraneEAC1 ModelingUp to 19 pointsNew BuildingsExisting Building RenovationsPoints12%8%114%10%216%12%318%14%420%16%522%18%624%20%726%22%828%24%930%26%1032%28%1134%30%1236%32%1338%34%1440%36%1542%38%1644%40%1746%42%1848%44%19 2007 American Standard All rights reservedASHRAE Standard 90.1-2

15、019Contents Purpose Scope Aspects of building addressed by provisions 2008 TraneASHRAE Standard 90.1-2019Purpose“Provide minimum requirements for the energy-efficient design of buildings except low-rise residential buildings”2008 TraneASHRAE Standard 90.1-2019ScopesNew buildings and their systemssNe

16、w portions of buildingsand their systemssNew systems and equipment in existing buildings 2008 TraneASHRAE Standard 90.1-2019ExclusionssLow-rise residential buildingsuASHRAE Standard 90.2 covers low-rise(3 stories or less),one-family,and two-family residential buildingssBuildings that do not use elec

17、tricity or fossil fuelsEquipment and portions of building systems that use energy to support industrial,manufacturing,or commercial processes 2005 American Standard All rights reservedASHRAE Standard 90.1SectionsnSection 1:PurposenSection 2:ScopenSection 3:Definitions,Abbreviations,and AcronymsnSect

18、ion 4:Administration and EnforcementnSection 5:Building EnvelopenSection 6:HVACnSection 7:Service Water HeatingnSection 8:PowernSection 9:LightingnSection 10:Electric MotorsnSection 11:Energy Cost Budget(ECB)MethodnSection 12:Normative ReferencesnAppendices 2007 American Standard All rights reserved

19、ASHRAE Standard 90.1Section 5:Building Envelope 2008 Tranesection 5:building envelopeBasis of RequirementssClimate zone sSpace conditioning categoryuNonresidential conditioneduResidential conditioneduSemiheatedsConstruction class 2019 American Standard All rights reserved 2008 TraneLook up climatezo

20、nes by location Miami,San Juan=1ASeattle=4CReykjavik=7AmoistCmarineBdrysGroups climates into 8 zonessSubcategorizes zonesby humidity levelappendix B:building envelopeClimate Criteria1veryhot8subartic7verycold6cold5cool4mixed3warm2hot 2008 TraneU.S.Climate Classifications(Briggs et al.,2019)2008 Tran

21、eASHRAE Standard 90.1More International DataFor South America AscuncionMontivideoBelemPorto AlegreBrasiliaPunta ArenasBuenos AriesRecife/CuradoCaracasRio de JaneiroConcepcionSan JuanCordoba de MarconaFortalezaSantiagoLa PazSao PauloLimaTalara 2008 TraneASHRAE Standard 90.1More International DataFor

22、Puerto Rico All Zone 1A Except,Barranquitas 2 SSW-2BCayey 1 E-2B 2008 TraneASHRAE Standard 90.1Compliance Paths:Envelopeproposedbuilding design90.1-compliantbuildinggeneral&mandatoryprovisionsPrescriptiveBuilding EnvelopeOption(5.5)Building EnvelopeTrade-Off Option(5.6,performance)Energy CostBudget

23、Method(ECB,11)2008 TraneMandatory Provisions sLabeling of insulation R-valuesRating of doors and fenestrationsAir leakageuBuilding envelopeuFenestration and doorsuLoading docksuVestibules(with exceptions)2008 Tranesection 5:building envelopeTypical AssembliessOne-page summary of requirements for eac

24、h climate zonesPrecalculated heat transfer values simplify application 2019 American Standard All rights reserved 2008 Tranesection 5:building envelopeDemonstrating CompliancesOpaque elementsuMaximum U-factor for entire assembly,oruMinimum rated R-values of insulationsFenestration uMaximum U-factoru

25、Maximum solar heatgain coefficient(SHGC)based on orientationand percentage 2008 Traneprescriptive complianceEnvelope FenestrationsSkylight area as percentageof gross roof areasVertical fenestration glazingarea as percentage of gross wall areasU-factor depends on construction typesSolar heat gain coe

26、fficient(SHGC)depends on orientation 2008 Traneprescriptive complianceOpaque Envelope ElementsNo calculations required Either:uSpecify insulation R-valueoruLook up common U-factors 2008 Traneoverall U-factorsRoof Construction ClassessInsulation entirelyabove decksMetal building roofssAttic and other

27、 roofs 2008 Traneoverall U-factorsAbove-Grade WallssMass wallssMetal building wallssMetal-framed wallssWood-framed and other walls 2008 TraneEnvelope Addendasas:Modifies opaque envelope requirementssat:Modifies fenestration(glass)requirements90.12019Changeexample*Excerpt from Table 5.5-2,Building En

28、velope Requirements for Climate Zone 2(A,B),of ASHRAE Standard 90.1-2019Example of 5.5s compliance criteria for roofs,based on climate zone and construction typeBuilding Envelope Requirements*2019 American Standard All rights reservedexample*Excerpt from Table 5.5-5,Building Envelope Requirements fo

29、r Climate Zone 5 of ASHRAE Standard 90.1-2019Example of 5.5s compliance criteria for roofs,based on climate zone and construction typeBuilding Envelope Requirements*2019 American Standard All rights reservedexample*Excerpt from Table 5.5-1,Building Envelope Requirements for Climate Zone 1(A,B),of AS

30、HRAE Standard 90.1-2019Example of 5.5s compliance criteria for roofs,based on climate zone and construction typeBuilding Envelope Requirements*2019 American Standard All rights reserved 2008 Tranesection 5:building envelopeDemonstrating CompliancesIn lieu of prescriptive options.uBuilding Envelope T

31、rade-Off Option,oruEnergy Cost Budget methodsStill in conjunction with mandatory requirementsBuilding Envelope Trade-Off OptionEnvStd 5.0 softwareautomates EnvelopePerformance Factorcalculations 2008 Tranesection 5:building envelopeSummarysCriteria based on space typesOne table summarizes envelopere

32、quirements per climate zonesPrecalculated U-factors forcommon construction typessComputerized“buildingenvelope trade-off”procedure 2019 American Standard All rights reserved 2007 American Standard All rights reservedASHRAE Standard 90.1Section 6:HVACSection 7:Service Water Heating 2008 TraneSimplifi

33、edApproach Option(6.3)ASHRAE Standard 90.1Compliance Paths:HVACproposedHVAC design90.1-compliantHVAC systemprescriptiverequirements(6.5)SimplifiedApproach Option(6.3)Energy CostBudget Method(ECB,11)(small buildings only)mandatoryprovisions(6.4)2008 TraneHVAC compliance with Std 90.1Simplified Approa

34、chsMinimal effort sEqually stringent requirementssFits on two pagessLimited to uBuildings with 1 or 2 storiesuBuildings less than 25,000 square feetuSingle-zone systemsuAir-cooled or evaporatively cooled 2008 TraneHVAC compliance with Std 90.1 Simplified ApproachsEconomizer as necessarysHeat:Heat pu

35、mp,fuel-fired furnace,electric resistance,or baseboard system with boilersOutdoor air:3,000 cfm,300 cfm:Gravity or motorized damperssSystem 10,000 cfm:Optimum startconcluded 2008 Tranesection 6:HVACMandatory ProvisionsSimplifiedApproach Option(6.3)proposedHVAC design90.1-compliantHVAC systemprescrip

36、tiverequirements(6.5)SimplifiedApproach Option(6.3)Energy CostBudget Method(ECB,11)(small buildings only)mandatoryprovisions(6.4)2008 Tranesection 6:HVACMandatory ProvisionssEquipment efficienciessLoad calculationssControlssConstruction and insulationsCompletion requirementsDrawings,manuals,balancin

37、g,and commissioning 2008 TranesAir conditioners andcondensing unitssHeat pumpssChillerssPTACssFurnacessBoilerssHeat-rejection equipmentmandatory HVAC provisionsEquipment Efficiencies 2008 Tranesection 6:HVACEquipment Efficiencies raisedsan:Boiler efficiencies18 trillion Btu of gas or oil annually as

38、 stock turnssF:Three-phase air-cooled AC and heat pumps2.3 quads by 2035sg:Air-cooled AC and heat pumps1.05 quads by 203590.12019Change 2008 Traneexamples ofEquipment Efficiencies6.4.1.1:“Where multiple rating conditionsor performance requirements are provided,the equipment shall satisfy all stated

39、requirements”Equipment typeMinimum efficiencySelf-contained,water-cooled11.0 EERw/electric resistance heat10.3 IPLV(20100 tons)Water-source heat pump12.0 EER(cooling)(1.55.25 tons)4.2 COP(heating)Centrifugal chiller,6.10 COP0.576 kW/ton water-cooled(300 tons)6.40 IPLV0.549 IPLV(at ARI rating conditi

40、ons)2008 Tranemandatory HVAC provisionsLoad CalculationssMust calculate heating and cooling system design loadssMust base calculations on generally accepted engineering standards and handbooks 2019 American Standard All rights reserved 2008 Tranemandatory HVAC provisionsZone Thermostatic ControlssRe

41、quired for each zonePerimeter can be treated differentlys5 F deadbandDual setpoint or deadband(can be software for DDC)2008 Tranezone thermostatic controlsPerimeter Zones60 ftbuilding plan view:thermal zoning example 10,000 cfmsZone isolation:u25,000 ft maximum zone size on one flooruIsolation devic

42、es to shut off outdoor and exhaust airflowuCentral systems capable of stable operationZone IsolationExamplecentral VAV fan systemroof“normally-closed”VAV boxesVAV boxes withDDC controlsreturn air(typical)motorized dampercombination fire/smoke dampersupply duct to zones(typical)2019 American Standard

43、 All rights reserved 2008 TraneASHRAE 62.1 ReferencesChanged from 62.1-2019 to 62.1-2019uVentilation rates changeduNow based on summation of rates per person and per area90.12019Change 2008 Tranemandatory HVAC provisionsVentilation System ControlsProvide motorized dampers:uIn stair and elevator shaf

44、tsuOn gravity hoods,vents,and ventilatorsExceptions:lBuildings 3 stories highOr,any building in climate zones 1,2,3(hot climates)lVentilation systems serving unconditioned spaces 2008 Tranemandatory HVAC provisionsVentilation System ControlsProvide shutoff-damper control foroutdoor-air supply and ex

45、haust systemsuAutomatically shut when systems or spaces are not in useuAutomatically shut during building warm-up,cool-down,and setbackExceptions:uBuildings 3 stories high,or any building in climate zones 1,2,3uOutdoor-air intake or exhaust 300 cfm 2008 Tranemandatory HVAC provisionsDamper Leakage R

46、ate*Dampers 500 ft2 and design occupancy 40 people/1000 ft:90.12019Change(was 3000 cfm and 100 people/1000 ft2)2008 Tranemandatory HVAC provisionsHeat Pumps:Auxiliary HeatFor heat pumps with internal electric heaters,controls must lock out electric heat when load can be met by heat pump aloneExcepti

47、on:Heat pumps regulated by NAECA if HSPF rating meets Table 6.8.1B and includes electric resistance heating 2008 Tranemandatory HVAC provisionsHumidification ControlssHumidifier preheatShut off humidifier preheat when humidification is not requiredsHumidification and dehumidificationPrevent simultan

48、eous operationException:Spaces that require specific humidity levels(computer rooms,museums,hospitals)if approved by authority having jurisdiction 2008 Tranemandatory HVAC provisionsVentilation:High OccupancyIf outdoor air 3,000 cfm and design occupancy 100 people/1000 ft:Automatically reduce outdoo

49、r air intake below design requirements when spaces are partially occupiedsExceptions:uSystems with exhaust-air energy recovery complying with Section 6.5.6.1uSystems with 3 in.wg 2008 Tranemandatory HVAC provisionsCompletion RequirementsDocumentation within 90 days of system acceptance:uDrawings of

50、actual installationuSubmittal datauOperation and maintenance manualsuService agency informationuControl sequences and schematics 2008 Tranemandatory HVAC provisionsCompletion RequirementsSystem balancinguWritten report conditioned spaces 5000 ftuFor airside system fan power 1 hp and hydronic pumps 1