| Title |
A study on Development and Application of Sequential Control Algorithm of Ventilation and Air Cleaning System for Improving Indoor Air Quality in School Classroom |
| Authors |
Park, Hwan-Chul ; Lee, Dong-Hyeon ; Yee, Jurng-Jae |
| DOI |
https://doi.org/10.5659/JAIK_SC.2020.36.5.187 |
| Keywords |
Indoor air quality; Air cleaner; Ventilator; Sequential Control; Algorithm |
| Abstract |
This study presents the energy-saving sequential control algorithm to handle indoor CO₂and PM2.5 for the improvement of the air quality of school classrooms. To solve indoor air quality (IAQ) problems, air cleaning and ventilation systems are mainly used for school classrooms. Although air cleaning is able to collect PM2.5, it is difficult to remove harmful gas substances. The ventilation system is suitable to tackle CO and CO₂, the volume ventilation, however, is relatively small. In this paper, to remove CO₂and PM2.5, the pollutant balance equation for improving indoor air quality is reviewed. The sequential control algorithm of the ventilation and air cleaning system with four levels of criteria is introduced for the effective removal of pollutants. The proposed sequential control algorithm confirms that indoor CO₂and PM2.5 can be properly controlled below the standard value. In addition, the sequential operation of air cleaning and ventilation systems has shown significant improvement in IAQ compared to the independent ventilation system operation. Particularly, such systems are efficient when outdoor PM2.5 is high. |