Airflow and Radon Transport Modeling in Four Large Buildings.
Airflow and Radon Transport Modeling in Four Large
Fang, J. B.; Persily, A. K.
ASHRAE Transactions, Vol. 101, No. 1, 1995.
Sponsor:Environmental Protection Agency, Washington, DC
air flow; building technology; contaminant dispersal;
indoor air quality; mechanical ventilation; modeling;
multi-family residential; multi-zone; office buildings;
Computer simulations of multizone airflow and
contaminant transport were performed in four large
buildings using the program CONTAM88. This paper
describes the physical characteristics of the buildings
and their idealizations as multizone building airflow
systems. These buildings include a twelve-story
multifamily residential building, a five-story
mechanically ventilated office building with an atrium,
a seven-story mechanically ventilated office building
with an underground parking garage, and a one-story
school building. The air change rates and interzonal
airflows of these buildings are predicted for a range of
wind speeds, indoor-outdoor temperature differences, and
percentages of outdoor air intake in the supply air.
Simulations of radon transport were also performed in
the buildings to investigate the effects of
indoor-outdoor temperature difference and wind speed on
indoor radon concentrations.