Design Method of Wind-forced Ventilation Including Effect of Turbulence of Wind on Ventilation : Part 3-The Air Flow Rate and Ventilation Efficiency in the Case of One-Openinged Ventilation

Abstract

In this paper, the flow chart of design method of wind-forced ventilation is presented, and the basic investigation on the ventilation of the room with a single opening is made through experiment using a model enclosure. In conclusion, the following results are obtained. 1. The concentration of contaminants in a room under ventilation through a single opening is almost uniform except the vicinity of the opening. 2. The intermediate factor should be introduced to predict the air flow rate through opening. 3. The ventilation efficiency is in good correlation with R.M.S. of velocity fluctuation of approaching wind and air velocity in the opening.