air barrier
[AIVC, Air infiltration and ventilation glossary, 1992]: (see air curtain)
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air change
[AIVC, Air infiltration and ventilation glossary, 1992]:a quantity of fresh air equal to the volume of the room or building being ventilated(see air change rate)
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[ISO 16814:2008, 3.4]:measure of the effectiveness of outdoor air distribution to the breathing level within the ventilated space.
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[AIVC, Air infiltration and ventilation glossary, 1992]:A measure of how quickly the air in the room is replaced. It represents, the ratio between the nominal time constant, and the air change time, for the room.(see also air change time; coefficient … Continue reading →
air change rate
[AIVC, Air infiltration and ventilation glossary, 1992]:the volumetric rate at which air enters (or leaves) a building or zone expressed in units of building or zone volume(see specific flow) [ASHRAE Standard 62.2]:airflow in volume units per hour divided by the … Continue reading →