| Keywords |
Flow guiding fan; Underground parking lot; Ventilation efficiency; Age of air |
| Abstract |
In this study, the ventilation performance according to the operation of the flow guiding fan in the underground parking lot space where high concentrations of carbon monoxide are emitted was evaluated. The average airflow speed by the ventilation system of the underground parking lot was 0.91 m/sec and 1.08 m/sec, respectively, when the flow guiding fan was not operated and the average airflow speed did not show any significant difference.
The average airflow distribution according to whether or not the flow guiding fan was operated at a height of 1.5m is 5.50 min and 13.38 min, respectively, which can affect ventilation efficiency. When the flow guiding fan was not operated, a relatively low average ventilation efficiency of 46.2%_ave was found, and when the flow guiding fan was operated, a high average ventilation efficiency of 133.2%_ave was found, so it was judged that the ventilation system applying the flow guiding fan could be judged as an appropriate level of ventilation system. |