AIRFLOW AND RADON TRANSPORT MODELING IN FOUR LARGE BUILDINGS

solution technique baaed on the Newton-Raphaon method to Chnputer simulations of multizone ai*w and contam-inant transpoti were performed infour barge buildings using the program COMMM88. This paper describes tk physical characteristics of the buikiings and their idealizutwns as multizone building aifiw systems. Thse buildings include a twelve-story multifamily residential building, a jive-stmy mechanically ventilated ojtj?ce building with an atrium, a seven-story mechanically ventilated oflce building with an underground parking garage, and a one-story school build-ing. 7he air change rates and intenonal airjlows of these buildings are predicted for a range of wind speeds, indoor+utdoor temperature digerences, and percentages of outdoor air intake in the supply ai ~ Simulatwns of radbn transport were also performed in the buildings to investigate the effects of indoor-outdoor temperature difference and wind speed on indoor radon concentrations