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RISS 인기검색어
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- 저자 : Kihong Min(민기홍) (검색결과 4 건)
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최영태 ( Youngtae Choe ),박진현 ( Jinhyeon Park ),김은채 ( Eunchae Kim ),김동준 ( Dongjun Kim ),민기홍 ( Kihong Min ),조만수 ( Mansu Cho ),양원호 ( Wonho Yang ) 대구가톨릭대학교 자연과학연구소 2020 자연과학연구논문집 Vol.18 No.1
As health problems caused by air pollutants and problems caused by air pollutants such as COVID-19 are caused, interest in air quality is growing. Modern people spend more than 80% of their day indoors, so most of them are exposed to air pollutants indoors. Also, contaminated air of indoor air may be generated indoors or introduced outdoors. If contaminated air is not properly ventilated or discharged indoors, contamination accumulates as it circulates inside, which can cause more problems than outdoor air pollution. In particular, indoor air quality is more important when spending a long time in a space such as a house, office, or school classroom. Unlike adults, children and adolescents have a higher respiratory rate per unit weight and a higher risk of exposure to pollutants heavier than air due to their relatively low height. Also, because students spend most of their day in the classroom, the quality of the school classroom air can have a greater impact on students’ health. The indoor air quality of school classrooms can change the PM10 concentration due to external influences. Therefore, the environment and characteristics of the school must be considered.
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Monte-Carlo 모의실험을 이용한 초·중·고등학교의환기부족 평가
최영태(Youngtae Choe),박진현(Jinhyeon Park),김은채(Eunchae Kim),류현수(Hyoensu Ryu) 김동준(Dong Jun Kim),민기홍(Kihong Min),정다영(Dayoung Jung),우병렬(Byung Lyul Woo),조만수(Mansu Cho),양원호(Wonho Yang) 한국환경보건학회 2020 한국환경보건학회지 Vol.46 No.6
Objectives: Indoor air quality has become more important aspeople spend most of their times indoors. Since students spend most of their times at home or at school, they are more likely to be exposed to indoor air pollutants. Ventilation in school classrooms can affect health and learning performance. In this study, ventilation deficiency was evaluated in school classrooms using Monte Carlo simulation. Methods: This study used sensor-based monitoring for six months to measure carbon dioxide (CO2) concentrations in classrooms in elementary, middle, and high schools. The volume of the classroom and the number of students were investigated, and the students’ body surface area was used to calculate the CO2 emission rate. The distribution of ventilation rates was estimated by measured CO2 concentration and a massbalance model using Monte Carlo simulation. Results: In the elementary, middle, and high schools, the average CO2 concentrations exceeded 1000 ppm, indicating that the ventilation rates were insufficient. The ventilation rates were deficient from July to August and in December, but showed relatively high ventilation rates in October. Forty-three percent of elementary schools, 56% of middle schools, and 62% of high schools showed insufficient ventilation rates. Conclusions: The ventilation rates calculated in elementary, middle and high schools were found to be quite insufficient. Therefore, proper management is needed to overcome the lack of ventilation and improve air quality.
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