ventilation effectiveness concentration
[EN 12792:2003, 389]:measure of the relationship between the pollutant concentration in the exhaust air and the pollutant concentration in the specified zone.
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ventilation efficiency
[AIVC, Air infiltration and ventilation glossary, 1992]:a series of indices which indicate the mixing characteristics of incoming outdoor air with the air already present in an enclosure and which characterise the pollutant distribution within that enclosure resulting from the interaction … Continue reading →
ventilation efficiency, absolute
[AIVC, Air infiltration and ventilation glossary, 1992]:a quantity which expresses the ability of a ventilation system to reduce a pollution concentration relative to the feasible theoretical maximum performance.
Continue reading →ventilation efficiency, relative
[AIVC, Air infiltration and ventilation glossary, 1992]:a quantity describing how the ventilation ability of a system varies between different parts of a room.
Continue reading →ventilation flow rate
[EN 12792:2003, 392]:volume flow rate at which ventilation air is supplied or removed.
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