| Title |
An Experiment of NOx Reduction according to the Area change of TiO2 Coating in Ventilation Ducts |
| Authors |
정용기(Jung, Yong-Gi) ; 송용우(Song, Yong-Woo) ; 김성은(Kim, Seong-Eun) ; 유재윤(Yoo, Jae-Yun) ; 박진철(Park, Jin-Chul) |
| DOI |
https://doi.org/10.5659/JAIK.2021.37.8.147 |
| Keywords |
Ventilation Duct; Photocatalytic Coating Area; Nitrogen Oxide; Experiment |
| Abstract |
The purpose of this study was to study how to reduce the primary pollutants of NOx in a manner to keep a comfortable air quality. By
installing a photocatalytic reactor in a duct device, the reduction of NOx according to the reaction area change using the photocatalytic
reaction was confirmed through an experiment. The experiment was conducted according to the ISO 22197-1 test method, and the coating
area was changed to 100%, 75%, 50%, and 25%. As a result of the test according to the coating area change of the TiO2 photocatalyst, it
was confirmed that as the coating area decreased, the NOx concentration increased after the reaction was completed, and the NOx reduction
amount decreased. In addition, as the coating area decreased, the NOx reduction rate decreased, and the gradient of the reduction graph also
decreased. After the reaction of the coating area 25%, the time to 72% reduction, which is the amount of NOx reduction, was compared. As
the coating area decreases was confirmed that increases the reaching time to 72% reduction. |