Browse > Article

A Study on the using of the Ventilation System as the Method of Improvement of Air Quality in the Schools  

Ahn, Chul-Lin (부경대학교 냉동공조공학과)
Kim, Jwa-Jin (부경대학교 냉공공조공학과)
Kum, Jong-Soo (한국에너지기술연구원)
Park, Hyo-Soon (부경대학교 기계공학부)
Publication Information
Journal of the Korean Institute of Educational Facilities / v.11, no.2, 2004 , pp. 17-23 More about this Journal
Abstract
The purpose of this study concerns the improvement of air quality in school classrooms. Polluted indoor air is improved by efficient ventilation systems. So it is important to measure the amount of ventilation needed in classrooms. First, the amount of natural ventilation were measured through a tracer gas method. And we have established a heat recovery ventilation system from 4 cases of airflow in classrooms, and we have measured the change of $CO_2$ density. According to air quality measurements in the classrooms, the density of $CO_2$ is well above environmental standards which are acceptable. When the amount of ventilated airflow increases, indoor air quality is improved. It is surveyed that the most suitable amount of external inducted air is 770 CMH to satisfy $CO_2$ less than 1,000 ppm in classrooms. For improvement of air quality in classrooms, we must consider a suitable ventilation plan and installation of ventilation systems when constructing school buildings.
Keywords
air Guality; ventilation system; tracer gas method; environmental standards;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Offermann, F. J., 'ASHRAE Standard 129 Stadard method of measuring air change effectiveness Initial test result', 8th International Conference on Indoor Air Quality and Climate, Vol 1, 206-211, 1999
2 이경회, 윤재옥, 정재국, '사무소 건물의 실내공기환경을 고려한 자연환기기준 설정에 관한 연구'. 대한건축학회논문집 제13권 제6호, 185-195, 1997
3 김경환, '에어컨과 환기시스템을 적용한 실내 온열 및 환기 특성', 대한설비공학회 2003하계 발표대회 논문집, 1111-1116, 2003
4 신은상, 김진우, '수원지역 초.중.고등학교 교실의 실내 공기오염도에 관한 연구'. 대한위생학회지 제17권 제1호, 20-27, 2002
5 ASHRAE 62-1991, ASHRAE Standard, Ventilation for Acceptable Indoor Air Quality
6 강태욱, '실내 쾌적성 향상을 위한 환기성능분석과 룸 에어컨의 환기공조부하 특성에 관한 연구', 부산대학교 공학박사 학위논문, 2002
7 서세영, '추적가스를 이용한 열환경챔버내의 환기효율 측정 실험', 공기조화냉동공학회 논문집 제61권, 415-420, 1997