Zero Plus

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Zero Plus

  1. 1. PASSIVE HOUSE A passive house is a building in which indoor air temperatures A prerequisite for above the WHO (World Health Organisation) recommended international passive minimum of 18°C are maintained year round without active house construction is a heating and cooling systems. The house heats and cools itself, heating load of 10w/sqm. Furthermore the hence the term “passive.” combined primary energy consumption for the living area may not exceed 120kWh/(m²a) for heating, hot water and . household electricity. ZERO ENERGY HOUSE The minimal amount of external energy needed to provided a comfortable and healthy indoor climate in a Passive House will be covered with renewables, to be produced on site.
  2. 2. ZERO + Zero fossil fuel + 100% Renewable energy resources + Reduction of energy requirements by Passive House Standard design + Low embodied-energy materials . PLUS + Increase of Indoor Environmental Quality (IEQ) according to WHO and ISO standards Quality of materials, construction and fabrication + High quality design in adoption to New Zealand lifestyle, needs and desires + User friendly solutions in design and technology + Biodiversity principles at the urban scale (mixed-use, mixed generations, mixed typologies) + Intensifying the landscape component to urban living environments
  3. 3. [arc/sec] REACTIVE ARCHITECTURE ST PAUL ST GALLERY 11.Sept.08 - 4.Oct.08
  4. 4. PASSIVE SOLAR VS PASSIVE HOUSE Passive Solar Passive House Specific insolation Works with minimal requirements solar gains (e.g. southern orientation) Additional thermal Does not need mass requirements additional thermal mass Needs favourable Is comfortable year weather conditions to round be comfortable Provides solar gains No heating predominantly during requirements during Spring and Fall Spring and Fall Relies on natural Uses controlled forces for ventilation mechanical ventilation Design principles are Clearly defined and widely promoted proven concept
  5. 5. WHAT IS A PASSIVE HOUSE ? Very good and uninterrupted insulation of the whole building shell Highly energy efficient transparent building elements Draft-proof building envelope Heat recovery ventilation Excellent indoor comfort Excellent indoor environmental quality
  6. 6. HEAT RECOVERY VENTILATION – COLD SEASON pre-warmed (1) Stale air is exhausted in parts of the house, where moisture and odour is produced predominantly (like kitchens and bathrooms); (2) fresh air is transported to the living- and bedrooms, passing through an air-to-air heat exchanger (3) where it is warmed by the exhausted air. Both airways are strictly separated by a thin membrane (contact-free). The fresh air is pre-warmed by a brine-to air ground heat exchanger (4), which doubles as frost protection.
  7. 7. HEAT RECOVERY VENTILATION – WARM SEASON pre-cooled and dehumidified (1) Stale air is exhausted in parts of the house, where moisture and odour is produced predominantly (like kitchens and bathrooms); (2) fresh air is transported to the living- and bedrooms. The air-to-air heat exchanger (3) is bypassed. Fresh air is pre-cooled by a brine-to air ground heat exchanger (4) The brine is circulating through the ground and thereby cooled. By passing the cool brine the incoming air will give up a proportion of their moisture load through condensation. Condensate is collected and led into the sewage system. Incoming air is thereby dried and slightly cooled.

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