Passive-house architecture energy efficient building expert meeting

Passive-house architecture energy efficient building – expert meeting in Bratislava june 2007 Passive house up to date building concept for several ranges of size type climate Architect DI. Ursula Schneider

Passive-house architecture energy efficient building – expert meeting in Bratislava june 2007 size – s-m-l Housing Mühlweg Architektur: Dietrich I Untertrifaller Foto: Petra Blauensteiner Onkel Fred´s Hütte Arch. : Hertl. Architekten Foto: Hertl Office natur + lehm Architektur: Reinberg Foto: Peter Kytlica Architect DI. Ursula Schneider

Passive-house architecture energy efficient building – expert meeting in Bratislava june 2007 type - For new buildings and for refurbishment Community center Ludesch Architektur: Kaufmann Foto: Petra Blauensteiner School Schwanenstadt Architektur: PAUAT Architekten Foto: Schweighofer Architect DI. Ursula Schneider

Passive-house architecture energy efficient building – expert meeting in Bratislava june 2007 type - housing, office, public, tourist and commercial buildings Energy base Arch. : pos architekten rendering: pos architekten Schiestlhouse Arch. : pos architekten +Treberspurg Foto: Dorninger School Schwanenstadt Architektur: PAUAT Architekten Foto: Schweighofer Christophorus Haus, (Foto M. Schweighofer) Architect DI. Ursula Schneider

Passive-house architecture energy efficient building – expert meeting in Bratislava june 2007 climate – even in extreme alpine conditions Architect DI. Ursula Schneider

Passive-house architecture energy efficient building – expert meeting in Bratislava june 2007 Example energy base Some details from an innovative passive office building Architect DI. Ursula Schneider

Passive-house architecture ENERGY base energy efficient building – expert meeting in Bratislava june 2007 South facade Main issues Energy efficiency Passivhousestandard User‘s comfort thermal, hygric, visual comfort Use of renewable energy Solarenergy and geothermal energy ecology Light weight wooden exterior wall, use of ground water for toilets Passiv-office building 7. 500 m² usable floor area For offices, research and educational institutions dealing with renewable energy www. energybase. at ENERGY base Giefinggasse 6, 1210 Wien Architect DI. Ursula Schneider

Passive-house architecture energy efficient building – expert meeting in Bratislava june 2007 Solution plan – floor plan, zoning Cell offices, north Open aisle Archive and auxiliary space, variable width, depending on site botanical buffer Open office space, south 3 storey void space section Architect DI. Ursula Schneider

Passive-house architecture energy efficient building – expert meeting in Bratislava june 2007 Energy efficiency: Passivhousestandard, retaining of heat Passivhousestandard: Lüftung mit Wärmerückgewinnung 75% 25% 30 m³/pers. Necessary ventilation rate 1. Retaining of thermal energy, minimizing the losses 26 cm thermal insulation, triple glazing Ventilation system with 75% heatrecovery Airtight envelope/no unrwanted infiltration of air Avoiding thermal bridges 2. Solar gain Architect DI. Ursula Schneider

Passive-house architecture New type of solar south facade Solar Gain south facade energy efficient building – expert meeting in Bratislava june 2007 Solar energy balance, vertical / folded facade twofold active Solaruse 570 m² Photovoltaik elements 300 m² solar panels for solar cooling solar radiation on vertical south facade solar radiation on vertical north facade hours/year solar radiation on PV panel – solar radiation on glazing- twofold passive Solaruse Directly into southzone, indirectly via ventilation system into north spaces hours/year Architect DI. Ursula Schneider

Passive-house architecture energy efficient building – expert meeting in Bratislava june 2007 Recherche, controle ventilation facade par CFD (computational fluid dynamics) 3 storey void space and routing of air flow Konturplot des Strahlungswärmestroms, erstes Band in [W/m²], mit Verschattung heat exchange fresh air exhaust air sun delivery air Architect DI. Ursula Schneider

Passive-house architecture energy efficient building – expert meeting in Bratislava june 2007 Renewable energy: strategy of heating and cooling with groundwater • ; 23° 20° Bauteilaktivierung 35 m³/pers. 40 m³/pers. Bauteilaktivierung Free cooling with ground water Ground water heat pump Architect DI. Ursula Schneider

Passive-house architecture energy efficient building – expert meeting in Bratislava june 2007 Better architecture for better comfort year: I-office 2 Outside temperature Operative Temperaturen der Zellenbüros Nord in Abhängigkeit von der Außenlufttemperatur - operative temperatures of cell offices north in reference to the exterior temperature year: I-south 2 Outside temperature Operative Temperaturen der Bürozone Süd in Abhängigkeit von der Außenlufttemperatur - operative temperatures of south office area in reference to the exterior temperature Operative inside temperatures Architect DI. Ursula Schneider

Passive-house architecture energy efficient building – expert meeting in Bratislava june 2007 Endenergie comparison of primary energy 85 % energy savings compared to Viennese building standard 2007 ENERGY base needs : Endenergy: electric current Primärenergievergleich comparison of energy sources between viennese commercial building standard and sunny research 25 k. Wh/m², a el. current for heating, cooling, ventilation, light, auxiliary energy 1/3 are produced on the building, Energy base uses 16, 8 k. Wh/m²a electric current from the net Normal new office buildings use this amount of energy for lighting only Quelle: Haustechnik Planungsgesellschaft arsenal research Primärenergiefaktoren lt. Gemis 4. 0 Österreich: Erdgas 1, 1 Wienstrom 2, 7 Architect DI. Ursula Schneider

Passive-house architecture energy efficient building – expert meeting in Bratislava june 2007 - Air humidity Eco-humidity by plant generator uncomfortable Sunny research Behaglich uncomfortably dry noch behaglich – still comfortable Standard building - Air temperature Architect DI. Ursula Schneider

Passive-house architecture energy efficient building – expert meeting in Bratislava june 2007 Air flow and user oriented comfort Konturplot der CO 2 Verteilung [ppm] auf einem Schnitt bei Z = 6 m, 12. September Architect DI. Ursula Schneider

Passive-house architecture energy efficient building – expert meeting in Bratislava june 2007 Cross border cooperation? Architect DI. Ursula Schneider

Passive-house architecture energy efficient building – expert meeting in Bratislava june 2007 Cross border cooperation Can be that Slovakian Investors look for Austrian consultants for greenbuilding-design and project controlling. Slovakian Planners look for Austrian partners as consultants for eco design Austrian architects look for slovakian partners To run high quality planning for projects in South-East-Europe Austrian Architects look for high quality and affordable price building components and services Architect DI. Ursula Schneider

Passive-house architecture energy efficient building – expert meeting in Bratislava june 2007 So let´s start building cooperations Construction site energy base Vienna, Arch. pos architekten Architect DI. Ursula Schneider