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논문 기본 정보

자료유형
학술저널
저자정보
한방우 (한국기계연구원 환경기계연구실) 홍기정 (한국기계연구원 환경기계연구실) 신동호 (한국기계연구원 환경기계연구실) 김학준 (한국기계연구원 환경기계연구실) 김용진 (한국기계연구원 환경기계연구실) 김상복 (한국기계연구원 환경기계연구실) 김상우 (에어랩 주식회사) 황청하 (에어랩) 노광철 (에어랩 주식회사)
저널정보
한국입자에어로졸학회 PARTICLE AND AEROSOL RESEARCH PARTICLE AND AEROSOL RESEARCH 제15권 제2호
발행연도
2019.6
수록면
79 - 90 (12page)
DOI
10.11629/jpaar.2019.15.2.079

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It is important to control fine particles in children care centers, elementary schools, elderly care facilities and so on where vulnerable children and the aged stay during most of their time. This study has investigated PM2.5 and PM10 concentrations in two classrooms equipped with an air cleaner and two air cleaners, respectively and they were compared to those in a classroom without an air cleaner as well as those outdoors. Eight air cleaners which have various clean air delivery rates (CADRs) between 9.9 and 21.3 m3/min were tested in classrooms in two elementary schools in Seoul. Average PM2.5 and PM10 were 7.3 ± 0.7 and 45.5 ± 4.1 μg/m3 in classrooms equipped with an air cleaner and 4.2 ± 0.6 and 24.6 ± 2.5 μg/m3 in classrooms with two air cleaners, whereas they were 22.1 ± 2.6 and 109.1 ± 9.6 μg/m3 in classrooms without an air cleaner and 36.9 ± 5.1 and 74.1 ± 10.6 μg/m3 outdoors, respectively. PM2.5 in classrooms could be reduced effectively by using an air cleaner or two air cleaners, because PM2.5 was mainly infiltrated from outdoors, however PM10 could not because PM10 was mainly caused indoors by students’ activities. Air cleaners were more effective for removal of PM2.5 and PM10 in classrooms with a high airtightness than those in classrooms with a relatively low one. Average CO2 in classrooms was about 1500 to 2000 ppm for class hours dependent on the student number per a classroom, which was about 1.5 to 2 times higher than the standard, regardless of the use of air cleaner.

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