MEASUREMENT OF NONSTEADY MASS TRANSFER PHENOMENON FROM SHORT-TERM DIFFUSION IN OFFICE BUILDING

Abstract

From the standpoint of health risk management for the occupants of a building, it is important to analyze the ventilation efficiency in room; if the ventilation system efficiently exhausts any air pollutant that can occur in the building. We carried out the measurements using tracer gas method to analyze the ventilation efficiency. The measurements were carried out twice; in summer and in winter, under the same experimental conditions, except that the pattern of temperature difference between the inside and outside of the building. Using the measurement results, we analyze the sensitivity on the results caused by season.