Transcript Heating
The nearly passive building The building has not got the traditional central heating. The energy consumption is 20 % less than in traditional house The cost of building is not much higher than the traditional one The cost of energy is 5 times less The comfort of life is higher than in traditional house The average annual energy consumption in kWh/m2 of the surface in the buildings Which were built in Poland in different periods (acording to changing rules) and in the currently built energy saving buildings. W kWh/m2/year The energy saving building passive 20-40 The flat 70 m2 GJ 80,6 45,3 35,2 26,4 22,6 16,3 7,56 Mg 4,03 2,26 1,76 1,32 1,13 0,82 0,38 C02 8,06 4,53 3,52 2,64 2,26 1,63 0,75 The qualities of the energy saving building Location– insolation, shields, green area The form of the building– Walls, roof, floor–thermal layer of 20-30 cm, elimination of thermal bridges Windows and doors–hermetic,small wastes Shutters or outer blinds Ventilation:gravitational, mixed, mechanical Warm water– solar collector The test of tightness of the building+thermo invading camera Heating Low temperature (e.g.on the floor) The thermal pump Heat ground exchanger Recuperator The fireplace gas/oil/liquefied gas/electrical/local provider Mixed heating How does it work? Cold air Cool air Warm air The used air The heated air Recuperator Exhaust ventilator Fresh air The used air Intake ventilator Recuperator —it is the device used in the systems of ventilation, which enables to recover the thermal energy from the air which is blown outside of the building Recuperator is the thermal exchanger. Different types of recuperators are used to recover the energy from the exhausted and intaken air. Recuperator Solar bolk with the thermal sensor Heat ground exchanger The section of the provent-geo exchanger Insulation- foamed polystyrene Insulated foil The ground The drainage pipe The sand- the layer of 5 cm thick The heat ground exchanger The heat ground exchanger The heat ground exchanger Winter The work of the exchanger in winter The continuous work for 24 hoursthe flow of the air is 2/3 of the output The temperature of the air Days in January Summer The work of the exchanger in summer The block draft of the ventilation system in the nearly passive house Exhaust ventialtor spoon spoon Intake ventilator Choke volve Heat exchanger Recuperator The buffor Fan fan Anemostatsoverthe fireplace Bridges insulation Thermal bridges window wall Facing of windows with the wall • insulation window wall The recommended method of installing the window in the passive house • insulation window The fastening anchor The wall must be monolithic Thanks to such installation of the window we can use every material for the wall (the most important thing) • insulation window wall anchor The expanded pressure buffor The hous is like vacuum bottle covered with polystyren around The expand ventilation buffor The typical draft of the passive house which can be downloaded from the Internet The chimney Solar collector The windows with tri shielded glass The pump The extra ventilator to the recuperator Septic tank Pipes to the solar collector The plan of the house The visualisation of the typical passive house (anemostat) Intake ventilator The massive brick wall which absorbs a lot of heat The fireplace with closed buffor for burning The extra thermal mat in case of the severe winter The extra source of water Andrzej Jurkiewicz M.SC. Thermal auditor Trzy błękitne koleżanki My changes to the passive house • • • • • • • • • • • • • • • • • A. Jurkiewicz Tightness of the building The lack of additional air ventilators Insulation of walls +accumulation of walls Insulation of the ground floor The natural blinds- ivy+ artificial ones The electrical outer blinds Elimination of the thermal bridges The supportive heating (mats) The electrical floor heating Mixing buffor Emergency aggregate The work of recuperator winter/summer The cventilation cables Full automatization The fireplace with the closed buffor for combustion Solar collectors(cwu – warm water) The cost of the building of the house(windows; 25 cm; recuperator; automatization) is comparable with the cost of traditional house The presentation has been made for the FOCUS project Based on the materials retrieved from Mr A. JURKIEWICZ and photos taken during the trip to the nearly passive house MARCH 2010