대한설비공학회:학술대회논문집 (Proceedings of the SAREK Conference)

대한설비공학회 (The Society of Air-Conditioning and Refrigerating Engineers of Korea)
권호 표지

변위환기를 이용한 대형 용접작업장의 공기환경 개선에 관한 연구

Improvement of Indoor Air Environment in a Large Welding Factory by Displacement Ventilation

  • 조동환 (한양대학교 대학원 기계공학과) ;
  • 강석윤 (한양대학교 기계기술연구소) ;
  • 최충현 ((주)명진에어테크) ;
  • 임윤철 ((주)명진에어테크) ;
  • 이재헌 (한양대학교 기계공학부) ;
  • 문정환 (한양대학교 대학원 기계공학과)
  • 발행 : 2005.11.25
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초록

In this paper, the indoor air environment in a large welding factory applied to displacement ventilation was investigated with experiment and numerical analysis for previous and new ventilation system. Concentration of fumes was analyzed for three cases with wind direction of outdoor. For experimental results, the dust concentration with new ventilation system decreased about 42-60% and the visibility increased about 11-18%. For numerical analysis, the exhaust efficiency of fumes was low when the wind and exhaust flow direction was inverse. It was found that the fumes in the factory decreased about 77% in case of the northern wind.

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