Design of Passive Houses - New and Existing Buildings Torben Esbensen, Consulting Engineer M.Sc., Denmark – Passive House Nordic - October 17, 2013 d kkkppp
Danish Building Regulations (BR) Max. energy consumption in buildings:
kWh/m²/year BR 2010 BR 2015 BR 2020 Zero Energy Buildings Plus Energy Buildings Passive Houses NZEB-Nearly Zero Energy Buildings
Living areas excl. lighting
Office areas incl. lighting
52,5 30 20
71,3 41 25
0 ÷ 15 (for heating)
0 ÷ 15 (for heating)
50% based on on-site renewable (not officially approved)
/ Side 2
The Zero Energy House, 1974 Technical University of Denmark - DTU • • • • • • •
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Insulation of walls and roof (300-400 mm) Insulations shutters in front of windows Heat recovery from balanced ventilation system (own design) Heat recovery from waste water (not working) 40 m² solar collectors (own design) Seasonal heat storage (30 m³) Space heating and hot water excl. solar heating: 2.300 kWh:120 m³ 20 kWh/m²/year First Passive House ?
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Brundtlandcentre, Toftlund, Denmark,1995 •
Information center for the Brundtland Report
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The building shows, how the demands can be fulfilled
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Reduced energy demand • • • • •
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Atrium as temperature and ventilation buffer Automatic solar screening Heat recovery Daylight shelves High insulation standard
Energy production • Solar cells in atrium roof
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• Sun screening • Energy production 223 m2 (182 m2 in the roof) 18.10.2013 / Side 9
Comfort Passive Houses Vejle, Denmark
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+M Architects, Esbensen A/S and Sloth
Møller A/S •
Energy efficient building – passive house standard
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No active heating system •
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Only heated by ventilation air
Constructed 2008
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Focus on passive features
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Natural ventilation •
Demand controlled
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Preheating and cooling of air
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Dynamic sun shading
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Energy consumption less than 25 kWh/m² per year
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Passive house certified
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Komforthusene, Vejle
Built: Area: Energy Class: Other:
Komforthusene +M Architects Esbensen A/S Sloth Møller A/S 2008 198 m2 LEK 1 Passive house certified
90 80 70 kWh/m2/år
Developer: Architect: Engineer:
60 50 40 30 20 10 0
Youth Residences, Aarhus Harbour, Denmark •
Arkitema Architects and Esbensen
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99 youth apartments, 12 floors
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Energy class 2025 •
0 kWh operating consumption
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150 m2 solar collectors
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700 m2 solar cells •
Integrated in facade and roof
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Natural ventilation
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Optimizing daylight distribution
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Heat recovery from waste water
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Construction phase 2011-2012
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”Youth Residences, Aarhus Harbour, Denmark”
Lervig Pier, Stavanger, Norway •
Lund Hagem and Atelier Oslo Architects, Esbensen Engineers
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4 low energy high rise buildings
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159 dwellings, 12-18 floors, 19 000 m2
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Passive features
•
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Daylight
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Passive solar heating
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Natural ventilation
45-50 % window ratio with floor to celling windows
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In construction phase 2013
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Stavanger Exhibition Hall, Oilfield Centre, Norway
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GASA Architects and Esbensen Engineers
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5000 m2 hall
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4000 exhibition guests or 8000 concert
guests •
Energy reduction: 50% compared with building regulation 2011
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Construction phase: 2013
Active and Passive Solar Energy Buildings
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Model Home 2020- ”The House For Life” Aarhus, Denmark
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Project by Velux A/S, Aart Architects and Esbensen Consulting Engineers
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Active House with focus on
indoor climate, daylighting and visual comfort
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Constructed 2008
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Test site for a new combined solar heating and heat pump system for
small buildings •
Velux A/S and Danfoss A/S
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50 m2 PV-cells integrated in roof
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Solar driven pump for hot water
and indoor heating •
Intelligent control of heating, ventilation and solar shading
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Presence detector
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Plus-energy house during the first year of occupancy
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Langkærparken AL2Bolig, Aarhus, Denmark Architect: Engineer: Built: Area:
NOVA5 Esbensen A/S Sloth Møller A/S 2012 Ca. 1700 m2
-Energy renovation of concrete buildings from 1960. - Four energy classes: BR10, BR15, BR20, Passiv House - Heating demand reduced with 90% from 200 to 20 kWh/m²/year
SE’s new Passive and Plus Energy Headquarter in Esbjerg, Denmark
Client:
SydEnergi
General contractor:
Hoffmann A/S
Architect:
GPP Architects A/S
Energy design:
Esbensen Const. Eng. A/S
Construction:
Sloth Møller Cons. Eng. A/S
Passive house certification:
Passivhus.dk
Floor area:
10.700 m² (420 employees)
Construction completed:
June 2013
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SE’s new Passive and Plus Energy HQ in Esbjerg, Denmark Energy saving measures: •
Compact building construction
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Daylighting design
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Energy efficient lighting
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Thermo active constructions
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Natural ventilation
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Energy efficient hybrid ventilation
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Passive cooling from 10 km soil pipes
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2.000 m² building integrated solar PV panels producing 250.000 kWh electricity per year
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Space heat demand: 8,2 kWh/m²∙year
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Useful cooling demand: 12 kWh/m² ∙year
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Pressurization Test Result: 0,1 h-1 (max. 0,6 h-1)
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