Journal of the Architectural Institute of Korea (대한건축학회논문집)

Architectural Institute of Korea (대한건축학회)
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Improvement of Airtightness and Blocking Performance of PM2.5 Inflow in Elementary School Classrooms Through Window Remodeling

초등학교 교실의 창호 리모델링을 통한 기밀성능 개선 및 PM2.5 유입 차단 효과

  • 이주원 ((주)이에이엔테크놀로지 ) ;
  • 강경모 (대진대학교 건축공학과 ) ;
  • 김태연 (연세대학교 건축공학과 )
  • Received : 2023.03.14
  • Accepted : 2023.06.07
  • Published : 2023.06.30
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Abstract

When classrooms are sealed shut, the level of PM2.5 infiltration is largely influenced by the effectiveness of airtightness. This study aims to evaluate the airtightness performance by remodeling the windows on the outdoor side, a primary source of PM2.5 inflow, in four classrooms in Korea. These classrooms, with a floor area of 65.6m2 and a volume of 170.6m3, are located adjacent to the same corridor. To evaluate airtightness performance, the main methods utilized were the Blower door test and the calculation of penetration factors through indoor and outdoor measurements of PM2.5 and CO2. The results demonstrated that, on average across the four classrooms, the ACH50 and ELA, calculated using the Blower door test, decreased by 5.8% and 10.1%, respectively. Additionally the average penetration factor for the four classrooms decreased by 14.6%. Furthermore, continuous monitoring of PM2.5 in the classroom with the weakest airtightness performance revealed an impressive 38.8% decrease in the I/O ratio.

Keywords

Acknowledgement

이 연구는 2022년도 한국연구재단 연구비 지원에 의한 결과의 일부임. 과제번호:2019M3E7A1113095

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