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Transcript of “Passive House in climatesâ€‌ - cagbc.org House in cold  ...

  • Dr.GuidoWimmers

    PassiveHouseincoldclimates

  • emissions

    Kyotoprotocol:Canadiantargetwastoreduceemissions(basedon1990)by2007by 6%Infactemissionsincreasedby+27%

    source:InternationalEnergyAgency

    CO2emissionspercapitaintonsperyear

    CanPHI_1.1.2

  • primaryenergyconsumptionpercapita

    source:InternationalEnergyAgency

    CanPHI_1.1.2

  • 4

    future

    1000 0 1000 2000 3000 4000

    1.solarage 2.solarage

    time

    fossilage

    worldwidefossilen

    ergycon

    sume

  • evolution

  • examplesofselfdelusion

    Gasolineisapowerfulhallucinatorydrug.Itshabitualuserswillbelieveanythingtoavoidfacingreality.Sincewhenisapaltry36mpggreenorremotelysustainable?Andthedelusionsonlygetworse.

    byWilliamE.Rees

    CanPHI_1.1.2

  • NationalGeographic,May2008

  • Theenergythatofficebuildingsuseforheating,lightingandcoolingisthemajorcomponentoftheirenvironmentalimpact approximately85%ofthetotallifecycleimpactfortypicalofficebuildings.[LEED;Cole&Kernan,1996;WinistorferandChen,2004;Trusty&Meil,2000;CORRIM,2004]

    priorities

    CanPHI_1.1.2

  • 9

    Canadastotalresidentialspaceheatingenergyuse

    2/3providedbyfossilenergyenergyuseforresidentialspaceheating800PJ=222000millionkWhtotalfloorspace1500millionmifreallyeverymisheated150kWh/m

    source:EnergyUseDataHandbook2006

  • statisticaverage

    passivehouse

    250

    200

    150

    100

    50

    0

    300 electricalpowerforlighting

    electricalpowerforauxiliary

    hotwater

    heating

    forresidentialbuildingsinkWh/mperyear

    newbuildings

    heating/cooling

  • statisticaverage

    250

    200

    150

    100

    50

    0

    300

    forcommercialbuildingsinkWh/mperyear

    source:EnergyUseDataHandbook2007

    statisticaverage

    passivehouse

    electricalpowerforlighting

    electricalpowerforauxiliary

    hotwater

    heating

  • forgottenpioneersofenergyefficiencySaskatchewanConservationHouse,1977

    thepassivehousewasborneinCanada!!!

  • In1977agroupofCanadianresearchersbuiltademonstrationhouseinRegina.TheSaskatchewanConservationHouse,thenearlyairtightbuildinghad2xdoubleglazedwindows,R40wallinsulation,R60roofinsulation,andoneoftheworldsfirstheatrecoveryventilators.

    forgottenpioneersofenergyefficiency

    PhotobyM.IsaacsMarch2010

  • thefirstPassivhausinDarmstadtbyDr.WolfgangFeist

    11yearslater,aGermanphysicist,Dr.WolfgangFeist,adoptedthislist,suggestedafewfurtherspecifications,andcoinedaGermanword,Passivhaus,todescribethemodusoperandi.

  • thePassiveHouseStandard

    energyefficientcomfortableeconomically andenvironmentallyfriendly atthesametime.PassiveHouseisnotabrand,itisabuildingconcept whichisopentoall andwhichhasproveditselfinpractice.PassiveHouseistheleadingstandardinenergysavinginbuildingsworldwide:Theenergysavingforheatingamountstoover75%incomparisonwiththelegallyprescribedbuildingstandards.Theheatingcostsareverysmall highenergypricesmakenodifferencetoresidentsofPassiveHouses.PassiveHousesachievethisenormousenergyconservationthroughtheuseofspecialenergyefficientbuildingelementsandventilationtechniques.Comfortisnotimpaired,infactit'sevenperceptiblyimproved.

    Source: PHI Author: PHI / PHDE-A.1 09 10/09

  • whatisaPassiveHouse?

    aPassiveHouseisavery energyefficientbuildingwhichrequiressuchasmallamountofheatthatitcanbeheatedmainlybypassivesourcessuchasincomingsunlightandexistingappliances

    heatrecoveryviaamechanicalventilationsystemisnecessary

    CanPHI_1.1.2

  • whatisaPassiveHouse?

    aPassiveHousestillneedssomeenergy,butthespecificheatdemandisminimal.15kWh/myear

    specificheatloadshallnotexceed10W/m

    entirespecificprimary energydemandincludingdomesticelectricitymustnotexceed120KWh/myear

    ThePHStandardshould becomeapreconditionfortheLivingBuildingChallengeandforanyNetZeroHouseinitiative

    CanPHI_1.1.2

  • specificspaceheating/coolingdemand15kWh/(ma)

    envelopeminimizeheatbridgespsi0Uvalues

    window0.8W/(mK)exteriorbuildingelements0.15W/(mK)

    pressurizationtestresult@50Pa0.6/h

    entirespecificprimaryenergydemand120kWh/(ma)

    majorcriteriaforPassiveHouse

  • Thermalcomfort:Influences

    Essentialfactorswhichinfluencethermalcomfort

    AirtemperatureSurfacetemperaturesLocaltemperaturedifferences(verticalandhorizontal)DraughtsRelativeairhumidity

    Source: [EN ISO 7730], IG Passivhaus Deutschland Author: PHDE-A.1 27 10/09

  • residential

  • officebuilding,Innsbruck

    heatingenergy8kWh/mblower doortest0.23/@50Painslabradiantheatingandcoolingheatrecoveryventilationheatpump

  • elementaryschoolinAinet(altitude750m)

    reconstructionandextension2006heatingenergy14kWh/msolidwoodconstructionheatrecoveryventilationheatpump geothermalpower

  • secondaryschool,Klaus

  • productionfacilityrenovation,wolfurt

  • residentialpassivehouseinInnsbruck,26,000m

    Projectfacts:Location:InnsbruckNumberofrentaldwellings:354Basementparkinglots:405Dwelling area:25,910mGrossfloorspace:35,000mVolume:167,000cubicmetersTotalbuildingcostsexcl.VAT,incl.

    allcrafts,developmentcosts,financingcosts:uro51,828,000.00Certification:passivehouse

    certifiedbythePassivhausinstitutDarmstadt

  • Schiestlhaus,2154m

  • PassiveHouseinMontebello,QC

  • PassiveHouse stateoftheart

    itismorethantheadditionofindividualparts.Itisacomplexsystemwhichneedsanintegrateddesignforenvelope,materials,heatingandventilation!Butitisactuallycommonsenseanditsworththetrouble!

  • theresult

    energyefficient(uptominus90%)comfortable(allASHRAEcomfortcriteriaachieved)economically (reasonableadditionalcost,increasedvalue,significantlyloweroperatingcosts)environmentallyfriendly (verylowenvironmentallongtermimpact,energypluseasilypossible)healthy (constanthygienicairquality)

  • Wherearewegoing?

    Uptotodayover25000PassiveHouseswerebuildinalmosteveryclimatezoneinover20countriesaroundtheworld

    In2009theEUpassedadirectiveaskingthatallstateslegislatePassiveHouseconstructionby2016fornewconstructionandrenovation

    Energyefficiency/renewables arenowbiggeremployersinGermanythantheentireautoindustry(BMW,Audi,Mercedes,Porsche,VWetc)

    UnfortunatelycurrentlynoCanadianwindoworHRVmanufacturercomesanywherenearPassiveHouserequirements.Butwhatincentivedoourmanufacturershavetoreachthesehighstandards?

    CMHC,NRCan,CaGBC,BCandCityofVancouverareverymuchinterestedinPassiveHouse

    CanPHI trainedin2010almost100highlymotivatedprofessionalsinPassiveHousedesign

    CanPHI iscurrentlymorethan30PassiveHouseProjectsinCanada

  • www.passivehouse.ca

    Slide Number 1emissionsprimary energy consumption per capitafutureevolutionexamples of self-delusionSlide Number 7prioritiesCanadas total residential space heating energy useSlide Number 10Slide Number 11Slide Number 12Slide Number 13the first Passivhaus in Darmstadt by Dr. Wolfgang Feistthe Passive House StandardSlide Number 16Slide Number 17Slide Number 18Thermal comfort: Influencesresidentialoffice building, Innsbruckelementary-school in Ainet (altitude 750m) secondary school, KlausSlide Number 24production facility renovation, wolfurt residential passive house in Innsbruck, 26,000mSchiestlhaus, 2154mPassive House in Montebello, QCSlide Number 29the resultWhere are we going? Slide Number 32