Fire Science and Engineering (한국화재소방학회논문지)

Korean Institute of Fire Science and Engineering (한국화재소방학회)
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Comparison of the Physical Properties for Alternative Eire Extinguishing of Pure and Mixture Component of Inert Gases

불활성가스계 단일 성분 및 혼합물 성분의 대체 소화제의 물성 비교

  • 김재덕 (한국과학기술연구원, 국가지정 초임계유체연구실) ;
  • 이광진 (인하대학교 화학공학) ;
  • 한순구 (인하대학교 화학공학) ;
  • 이윤우 (한국과학기술연구원, 국가지정 초임계유체연구) ;
  • 노경호 (청정기반기술연구소)
  • Published : 2004.06.01
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Abstract

The commercially available IG-541 extinguished agent composed of inert gases was developed for environmental protection. The extinguished agents were considered in terms of physical properties, efficient characteristic, environment, stability, and economical efficiency. The pure and mixture components of physical properties of $N_2$, Ar and $CO_2$ were chosen and compared. The physical properties of density, viscosity and surface tension of inert gases were plotted with the molar ratios of $N_2$/$CO_2$ and Ar/$CO_2$ in terms of a temperature. The extinguished agent in the composition of $N_2$, Ar and $CO_2$, 50/40/10 (mol %) showed relatively high density, low viscosity and moderate surface tension, therefore it was suitable for the alternative extinguished agents.

지구 환경 보호를 고려한 불활성가스계의 혼합물인 IG-541소화제가 개발되었다. 소화제는 물성에 의한 특성 및 효율성, 환경에 미치는 영향뿐만 아니라 안정성, 경제성을 고려해야한다. 이러한 불활성 가스계의 대체 소화제에 사용되는 $N_2$, Ar, $CO_2$의 순수 및 혼합물의 물성을 수집하여 비교하였다. 불활성 가스계 대체소화제의 물성 중 밀도, 점도, 표면장력을 온도에 대한 변화와 혼합물에서 몰 분율의 변화에 관해 비교하였다. 3성분계 혼합물 중 50% $N_2$, 40% Ar, 10% $CO_2$(mol. %)의 조성인 혼합물에서 밀도가 높고, 점도가 낮으며, 표면장력이 순수 성분 보다 높지 않아 소화제로서 유리하다.

Keywords

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