A NEW BUILDING VENTILATION EFFECTIVENESS INDEX

摘要

This paper proposes a new index that can provide a practical and quantitative evaluation of building ventilation effectiveness. Using non-vent and mixing-vent cases as references, the index can serve as a simple criterion for assessing pollutant removal efficiency of building ventilation systems. The paper demonstrates the application of this index for judging the ventilation performance of a displacement ventilation system in a building complex, with the contaminant concentration data obtained from numerical experiments. The same analysis procedure can be followed with field test data.