from vienna’s historical heritage buildings to …...from vienna’s historical heritage buildings...
TRANSCRIPT
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From Vienna’s historical heritage buildings tolakeside plus energy district.
Learning from experience to advance towards sustainable, safe, and affordable low carbon energy living (?)
Prof. Dr. Thomas Bednar
Institute for Building Constructions and TechnologyResearchcenter for Building Physics and Sound Protection
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Outline
History & Future of shaping the system
Cultural heritage
New buildings - Lessons learned
Lakeside Aspern
Conclusions on the transformation process
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GründerzeitZwischenkriegszeit
WiederaufbauzeitSystembauweise
MontagebauweiseWr. Bauordnung 1976
Wr. Bauordnung 1993ffWr. BTVO 2008 / OIB 2007
Wr. BTVO 2012 / OIB 2011
PassivhausbauweisePlus-Energie-GebäudePopulation
Austria
Vienna
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GründerzeitZwischenkriegszeit
WiederaufbauzeitSystembauweise
MontagebauweiseWr. Bauordnung 1976
Wr. Bauordnung 1993ffWr. BTVO 2008 / OIB 2007
Wr. BTVO 2012 / OIB 2011
1928-321951-52
1974-76
1997-98
Massiv-Bauweise im sozialen Wohnbau in WienAmann, Jodl, Maier, Mundt, Pöhn, Pommer; 2007
https://maps.google.com
http://www.gruenderzeitplus.at
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https://www.wien2025.at/site/http://www.wien.gv.at/stadtentwicklung/projekte/smartcity/index.html
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City development – Areas of FocusSTEP – Urban development plan
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Enhancing Energy Efficiency
Cultural Heritage ProtectionOnly 2% of buildings in Austria are listedBut more are under protectionbeing part of a historic town
Wish to reduce running costs
Lack of knowledgeLack of awareness on risks
=> Development of Guideline 2011
Download from: http://www.bda.at/downloads/1990/Richtlinien
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easy applicable
not so easy applicable
only if really necessary
Guideline lists possible measure and the necessary steps in the design process
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ISTrepairing indows– improving airthightness
insulation against atticcontrol system, reduction of system losses
adaption of windowssolar thermal collector on site (not building)
efficient heat pumpinternal insulation
external insulation
total primary energy demand in kWh/m²a
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Awarness for risk
• internal insulation increases risk of failure• special focus during design process on reliability
IEA Annex 55 - Reliability of Energy Efficient Building Retrofitting - Probability Assessment of Performance & Cost
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UTE UtendorfgasseDRE Dreherstrasse
KAM Kammelweg
•2., Jungstraße•11., Pantucekgasse•11. Dreherstraße•14., Utendorfgasse•21., Kammelweg Bauplatz E, Bauplatz B•21., Mühlweg•22., Esslinger Hauptstraße•23., Schellenseegasse•23., Anton-Heger-Platz
http://www.hausderzukunft.at/english.htm
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Start of occupation: 2007Number of flats: 3 * 13Gross floor area = 1330 m²Area inside flats = 901 m²Heating and hot water: central gas fired condensing boiler
hot water storage tankdistribution system with circulation pipe
Heating of flat through supply air
UTE Utendorfgasse
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Start of occupation: 2007; Number of flats: 27Gross floor area = 3216 m²Net area inside flats = 2178 m²Heating and hot water: district heating
hot water storage tankdistribution system with circulation pipe
Heating of flat through supply air.
DRE Dreherstrasse
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Start of occupation: 2008Number of flats: 80Gross floor area = 8100 m²Net area inside flats = 6808 m²Heating and hot water: district heating
hot water storage tankdistribution system with electric trace heating
Heating of flat through minimized radiators.
KAM Kammelweg
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Post occupancy evaluationComfort (Winter/Summer)
Temperature: No problems report in WinterVery good performance in Summer
Quelle: AEE Intec – Ergebnisse der messtechnischen Begleituntersuchungen von Haus der Zukunft, 2010
Room temperature in °C
Outdoor temperature in °C
Utendorfgasse
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Hot WaterHeat
11 kWh/m²Measured m³ Water
HeatingHeat
8 kWh/m²CalculatedMeasured
HouseholdElectricity25 kWh/m²Measured
VentilationElectricity 5.5 kWh/m²Measured
PumpsStaircase LightingSystem ControlElectricity 5.5 kWh/m²Measured
Boiler – Hot Water
Gas 38 kWh/m²CalculatedMeasured
Boiler – Heating
Gas 19 kWh/m²CalculatedMeasured
Gas
54 kWh/m²ConvPrim 1.3 70 kWh/m²
Et EbElectricity
37 kWh/m²ConvPrimAustria; 1.8 65 kWh/m²
Europe: 3.3 120 kWh/m²
Start of occupation: 2007Number of flats: 13Gross floor area = 1330 m² = REFERENCE AREAArea inside flats = 901 m²
BoilerGas 6700 m³Measured m³ Gas
Energy in kWh/m² reference area
Total Primary Energy
Austria 135 kWh/m²Europe 190 kWh/m²
IEA Annex 53 “Total energy use in buildings”
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2009 Okt07-Sep08 Okt08-Sep09
converted todistrict heating
Household
elevator, staircase, pumps, ventilation...
hotwater
heating
UTE UTE DRE KAM
Measured energy consumption
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Conclusions from building companies:
No mould growth inside the flats!!
Much better design process (Integral design)
Passive house concept in social housing works very well - if people live there- open windows during summer nights (April-September)- if designer use detailed calculation methods- if monitoring (system states) during first year is used
Future enhancements:
Reduction of system losses (currently 100% heating 300% hot water)Reduction of pressure losses in ventilation system (6kWh/m² -> 3kWh/m² electricity)Motivation of energy efficient household equipment
outdoor noise reduction (summer night time ventilation)security concerns during design process
PH-Academy - "Passive house of the future" Academy platform for knowledge transfer between building developers http://www.hausderzukunft.at/results.html/id5989
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Eurogate
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Eurogate
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Eurogate
Europe's largest passive house settlement - Eurogate
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Austria's Biggest Plus Energy Office Building
(Quelle: http://www.bing.com/maps/, bearbeitet von Schöberl & Pöll)
Renovation „Chemiehochhauses“ University Technology ViennaGetreidemarkt, 1060 Wien
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Eigentümerin und Nutzerin:• BIG Bundesimmobiliengesellschaft m.b.H.• TU Wien Rektorat - TU Wien Gebäude und Technik
Generalplanung• ARGE der Architekten Hiesmayr-Gallister-Kratochwil
Fachplaner im Generalplanerteam:• Technisches Büro ZFG Projekt GmbH, Haustechnik Planung• Technisches Büro Eipeldauer+Partner GmbH, Elektro- und Lichtplanung• CITEM Dr. DI Manfred R. Siegl, EDV Planung• DI Nikolaus Buch GmbH, Schallschutz und Akustik• Metal Design Engineering GmbH, Fassadenplaner• Schöberl & Pöll GmbH, Bauphysik und Forschung
Wissenschaftliche Leitung:• Schöberl & Pöll GmbH, Bauphysik und Forschung• TU Wien Forschungsbereich für Bauphysik und Schallschutz
Planungsunterstützung und Forschung erweitertes Team:• Ing. Siegfried Manschein GesmbH, Monitoring, Haustechnik Beratung• Pokorny GesmbH, Lichtplanung Beratung• ebök Planungs und Entwicklungs GmbH (D) Haustechnik Beratung• ATB-Becker e.U., Fotovoltaik Planung• Mag. Norbert Gröger oder Voith Hydro GmbH & Co. KG, Fotovoltaik Beratung• GENIOLUX Ingenieurbüro Gerstmann, Tageslichtberechnung• ENRAG GmbH, Simulation Fassadenhinterlüftung• TU Wien - ZIT, Serverraum
Project Partners
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429 kWh/m²GFA·year
82 kWh/m²GFA·year
Conversion Factors Electricity fPE 2.62 kWh/kWh District Heating fPE 0.92 kWh/kWh fPE,n.ern 2.15 kWh/kWh fPE,n.ern 0.20 kWh/kWh
Toilets, Fire SafetyControlsSensorsCommunication, SecurityTea kitchenPrinter, Displays,Server+UPSElevatorVentilationOffice EquipmentLightingCoolingHeating
total primary energy demand in MWh/year
current standard optimized
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Impact of PVon roof and facade
Conversion Factors Electricity fPE 2.62 kWh/kWh District Heating fPE 0.92 kWh/kWh fPE,n.ern 2.15 kWh/kWh fPE,n.ern 0.20 kWh/kWh
total primary energy demand in MWh/year
current standard optimized optimized+PV used PV export
non renewable primary energy
with own use of PV reduction of electricity
use at Getreidemarktdue to export of PV
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aspern Vienna’s Urban Lakeside
20.000 peopleliving&working
nearly zero energy / plus energy(Quelle: ATP – Architekten und Ingenieure)
http://www.aspern-seestadt.at/en
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Lakeside Aspern
Research projectlocal microclimateenergy exchange across buildingsdemonstration projects...
http://www.hausderzukunft.at/results.html/id6793
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Setup and prototype for full dynamic building / grid / plant simulation
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Scenario: Low energy buildingsStandard equipment50% roof area with PV
70 MW
60 MW
50 MW
40 MW
30 MW
20 MW
10 MW
-10MW
http://www.hausderzukunft.at/results.html/id6793
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30 MW
20 MW
10 MW
0 MW
-10 MW
-20 MW
-30 MW
-40 MW
Scenario: Lowest energy buildingsEfficient equipment100% roof area with PV
http://www.hausderzukunft.at/results.html/id6793
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CO2 –Emission in t/ person year
Low energy buildings
standard equipment
30% PV on roof
Lowest energy buildings – high efficientefficient equipment100% PV on roof
5
4
3
2
1
0
The calculations do not take into account mobility and production of buildings/equipment
http://www.hausderzukunft.at/results.html/id6793
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Quelle: ATP – Architekten und Ingenieure
http://www.asperniq.at/
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What (we) I learned .....
Product declaration needs much better standards (standby, part load ,...)to design high energy efficient buildings
Design needs higher eduction, more money and better tools
Transdisciplinary approaches to develop roadmap
sociology built environment – mobilitygrids – ICTeconomy - policy
Research from roadmap to clear sign postdesign goalsdesign methodsquality assurance post occupancy evaluation
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Vienna University of Technology
urbem.tuwien.ac.at
Apply for PhD - NOW!
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