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[학술저널]

  • 학술저널

김석철(볼트시뮬레이션) 윤정임(볼트시뮬레이션)

DOI : 10.5572/KOSAE.2019.35.3.346

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초록

The effectiveness of the direct ambient air cleaning devices such as the fine particle cleaning tower buildings or vehicle installed filter devices is assessed in the metropolitan Seoul area for the periods of the highly polluted air entrain from abroad. A conceptual model similar to the traditional box model is derived to analyze the dynamics of the particulate matter concentration averaged over the modeling domain, here the metropolitan Seoul with those cleaning devices applied. The effectiveness of the devices is sensitively dependent upon the wind speed and mixing height: the lower the mixing height and the lower the wind speed are, the greater the effects are. The overall performance of the cleaning tower buildings is estimated fairly poor, for number of million orders of units are required to reduce the ambient air dust concentration level down to 1/10 of the initial ambient value during night, while number of ten million orders of units, required for day time. The vehicle installed devices appears to be the better option. When the devices are installed to all 200,000 commercial vehicles registered in Seoul, the ambient dust concentrations are reduced by 39% under the calm wind conditions in night, which is about the maximum possible reduction.

목차

Abstract
1. 서론
2. 미세먼지 농도모형의 구성
3. 분석모델에 대한 고찰
4. 사례분석: 서울시
5. 결론
References

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