Title Numerical Analyses of Stack Effect on Dispersion of Airborne Viral Contaminants in High-rise General Hospitals
Authors Lim Tae-Seob ; Kim Byung-Seon
Page pp.279-288
ISSN 12269093
Keywords General Hospital ; Airborne Bio Contaminants ; Stack Effect ; CONTAMW
Abstract The purpose of this study is to analyze the effect of the stack pressure on the interior dispersion of airborne bio contaminants in the high-rise general hospital by conducting the field measurement and numerical analysis according to the outdoor temperature and the releasing vertical point of the tracer gas assumed as a viral contaminant. In the field measurement of the well-known high-rise hospital, the interior airflow was affected by the stack effect that appeared like high-rise buildings. The numerical simulation was verified by comparing its prediction result and the field measurement. In the numerical simulation, there is high possibility that the airborne bio contaminant emitted from the infected patient in the lower floors could be transported to the higher floors through the airflow driven by the stack effect. The concentration distribution of the tracer gas was mainly affected by the outdoor temperature and the vertical release point.