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- 저자 : 전석진(Seok-jin Jeon) (검색결과 2 건)
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교육활동에 따른 실내오염도 변화에 관한 연구 -신설 초등학교를 중심으로-
전석진,Jeon, Seok-Jin 한국교육녹색환경연구원 2007 교육·녹색환경연구 Vol.6 No.2
The purpose of this study is to measure and analyze primary causes of indoor air pollution, including carbon dioxide, minute dust, and total volatile organic compounds, for each room before the beginning of a class through the time of discharge after the end of the class in general classrooms, computer rooms, and science rooms of three newly-established schools that opened in 2006, examine properties of indoor air environment in each room by educational activities at school, and determine effective management schemes; the results of this study can be summarized as follows: 1) As for implications for each item found in the mean for each place, since minute dust (PM10) was more likely to occur in time slots full of students' activities, such as a traveling class and a recess, than in the middle of a class and could be expected fully, it is necessary to make a scheme for cleaning in order to reduce minute dust within a room, for example, by usually using a vacuum cleaner indoors. 2) While carbon dioxide was expected to vary with the differences in the amount of breath between higher-graders and lower-graders in a general classroom but showed insignificant difference by grades, showing differences in pollution by four times at a maximum according to the opening of a window as expected, it is necessary to implement artificial or natural ventilation and take a positive measure, for example, by presenting a concrete ventilation scheme, in order to improve indoor air pollution at a room practice. 3) Total volatile organic compounds were found to exceed the standard by more than twice in general classrooms, science rooms, and computer rooms of the schools because of building materials, furnitures including desks and chairs, panels and boards for environment beautification, and items which could be detected even from students' clothes; while a field directly-reading tool was used, obtaining high reliability for the results, it is necessary to apply an analytical method based on process test separately for actual correct measurement if a significantly great amount of total volatile organic compounds appear as compared with other schools due to measuring expenses and consecutive measurements. 4) Since formaldehyde (HCHO) was generally found to exceed the standard in general classrooms, science rooms, and computer rooms, it is necessary to establish and operate a ventilator during a class in a computer room which requires airtightness and a science room in which an organic compound should be used for a class.
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[진동 소음부문] 안락성 향상을 위한 시트의 동특성 개선
장한기(Han-Kee Jang),김승한(Seung-han Kim),정승태(Seung-tae Jung),전석진(Seok-jin Jeon) 한국자동차공학회 2001 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2001 No.11_2
본 연구에서는 안락성을 향상시키기 위하여 기존 시트의 단점을 보완하고, 장시간 주행시 피로감을 유발하는 진동의 전달을 최소화하는 방향으로 시트를 개발하고자, 인체의 특성을 고려한 진동전달 특성을 대변하는 S.E.A.T 값을 0.85에서 0.80이하로 개선하였다. 국내외 연구개발 동향 및 벤치마킹 결과를 토대로 기존 제품의 문제점을 파악하고, 이를 개선하기 위한 안락성 개선 방향을 제시하였다. 요구되는 재질 특성을 얻기 위하여 원재료 배합비(INDEX)를 변경한 4가지 재질의 표준시편과 시트를 제작하였으며, 각 재질에 대한 성능테스트를 수행하였으며 이 결과로부터 안락성 측면에서 가장 우수할 것으로 판단되는 배합비를 선정하여 양산 차량에 적용하였다.
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