planning:non-residential_passive_house_buildings:passive_house_schools:passive_house_schools_requirements
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planning:non-residential_passive_house_buildings:passive_house_schools:passive_house_schools_requirements [2020/09/12 12:46] – wfeist | planning:non-residential_passive_house_buildings:passive_house_schools:passive_house_schools_requirements [2021/10/08 13:42] (current) – yaling.hsiao@passiv.de | ||
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- | ====== Passive House schools – Requirements | + | ======Passive House Schools - Boundary Conditions |
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+ | Research for building Passive House schools has been conducted in the [[https:// | ||
- | The criteria for building Passive House schools were developed by the [[http:// | ||
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**1. Each modern school should have __controlled ventilation__ which meets the criteria for acceptable indoor air quality.**\\ | **1. Each modern school should have __controlled ventilation__ which meets the criteria for acceptable indoor air quality.**\\ | ||
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- | This was shown in a contribution by Rainer Pfluger in the relevant Protocol Volume [[planning: | + | This was shown in a contribution by Rainer Pfluger in the relevant Protocol Volume [[planning: |
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With these reference values, the result is **a significant improvement in the air quality** in comparison with the values usually obtained in Germany, Austria and Switzerland today. Experience with the Passive Houses already built also shows that the designed values should not be reduced even further. | With these reference values, the result is **a significant improvement in the air quality** in comparison with the values usually obtained in Germany, Austria and Switzerland today. Experience with the Passive Houses already built also shows that the designed values should not be reduced even further. | ||
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+ | If we go for even higher fresh air flows, what is desirable in case of infection risks, we will have to take care for keeping the indoor relative humidity above ~30%. An air humidifier will have to be used if external temperatures are low (lower than ~14°C). It is important in this case that the humidifier is kept clean all the time. | ||
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In comparison with residential buildings and office buildings, the overall air flow rates and air change rates which have to be planned are considerably higher during use due to the increased number of persons present in schools. | In comparison with residential buildings and office buildings, the overall air flow rates and air change rates which have to be planned are considerably higher during use due to the increased number of persons present in schools. | ||
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A direct result of the designed high air change rates is that the operating times of the ventilation system have to be restricted to the periods of use or the air quantities should at least be greatly reduced outside of these times, because otherwise there will be very high electricity consumption values even for efficient systems – this differs fundamentally from home ventilation in which the designed air quantities are near those required for basic ventilation needed on a permanent basis (with 0.25 h< | A direct result of the designed high air change rates is that the operating times of the ventilation system have to be restricted to the periods of use or the air quantities should at least be greatly reduced outside of these times, because otherwise there will be very high electricity consumption values even for efficient systems – this differs fundamentally from home ventilation in which the designed air quantities are near those required for basic ventilation needed on a permanent basis (with 0.25 h< | ||
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- | In schools, for basic ventilation planned with 2 h< | + | In schools, for basic ventilation planned with 2 h< |
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planning/non-residential_passive_house_buildings/passive_house_schools/passive_house_schools_requirements.1599907600.txt.gz · Last modified: 2020/09/12 12:46 by wfeist