한국가스학회지 (Journal of the Korean Institute of Gas)

한국가스학회 (The Korean Institute of GAS)
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LP가스의 폭발 현상 및 화염전파에 관한 연구

A Study on the Explosion Phenomenon and Flame Propagation of LP Gas

  • Choi, Jae-Wook (Dept. of Safety Engineering, Pukyong National University) ;
  • Lee, Dong-Hoon (Dept. of Safety Engineering, Pukyong National University) ;
  • Kim, Tae-Gn (Dept. of Safety Engineering, Pukyong National University) ;
  • Min, Wong-Chul (Dept. of Safety Engineering, Pukyong National University) ;
  • Lim, Woo-Sub (Dept. of Safety Engineering, Pukyong National University) ;
  • Choi, Byoung-Sik (Dept. of Chemical Engineering, Busan National University)
  • 발행 : 2007.06.30
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초록

LP 가스의 폭발현상 및 위험성을 평가하기 위하여, 산소농도변화와 LP 가스의 농도에 따른 혼합가스 조성을 변화시켜 실험을 행하였다. 산소농도 21%에서 LP 가스의 농도가 증가할수록 폭발하한계는 낮아졌으며, 최소산소농도(MOC, Minimum Oxygen Concentration)는 1.0 bar, 1.5 bar, 2.0 bar에서 각각 14.5%, 12.0%, 11.5%로 낮아졌다. 최대폭발압력은 압력이 증가할 경우 $6.46kg/cm^2,\;9.41kg/cm^2,\;13.49kg/cm^2$로 증가하였으며, LP 가스의 초기압력이 클수록 화염의 전파속도가 증가하였다.

The explosion phenomenon and hazard estimate of LP gas, the study was examined into variation of oxygen concentration and LP gas concentration. As the result of experiment, the lower explosive limit was decreased as the increased at concentration of LP gas and 21% of oxygen concentration. Minimum oxygen concentration was 14.5%. 12.0%, 11.5% at 1.0, 1.5 and 2.0 bar respectively. And maximum explosion pressure was increased for $6.46kg/cm^2,\;9.41kg/cm^2\;and\;13.49kg/cm^2$ according to increased of pressure. The speed of flame propagation was increased as the higher with initial pressure of LP gas.

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