A study on the Evaluation and Validation of Plasma Sterilizing Dust Collector Unit

摘要

With the continuous progress of urbanization and the improvement of economic standards, modern people spend most of their day indoors as well as changes in the lifestyle of modern people. According to a U.S. EPA report, modern people have high indoor activity times, with an estimated 90 percent of the time spent indoors. Interest in indoor air quality has been extended to the problem of indoor air pollution in office spaces. Accordingly, air purifiers and dust collectors that can clean up office space's indoor air have been developed and distributed continuously, and a dust sterilizer that introduces plasma has been also developed. Since the impact of outdoor air penetration in Pohang Steel Mill in Korea is expected to be significant due to the characteristics of the workshop, it is deemed necessary to verify the performance through field application evaluation to assess the performance change according to the location characteristics. For further evaluating and analyzing the efficiency reduction caused by the number and activity of the office workers, an on-site application assessment is also necessary to scientifically demonstrate the performance of Plasma Sterilizing Dust Collector Unit through verification of performance in actual buildings. Accurate assessment will be carried out, considering performance of actors in the office such as commuting/retiring, lunchtime, and other events, analysis of the reduction efficiency of fine dust by time. The purpose of this research is to evaluate the performance of Plasma Sterilizing Dust Collector Unit installed directly in buildings and verify their efficiency in the field, as the office space at the center of Pohang Steel Mill has many limitations, including the wide range of places to apply general air "purifiers, and the fact that indoor air quality needs certain improvement due to the characteristics of the place.