Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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Measurement of Minimum Ignition Energy by Electrostatic Discharge for Flammable Ternary Gas Mixtures

3성분계 인화성 혼합가스의 최소점화에너지 측정에 관한 연구

  • Choi, Sang-Won (Occupational Safety and Health Research Institute, KOSHA)
  • 최상원 (한국산업안전보건공단 산업안전보건연구원)
  • Received : 2012.10.17
  • Accepted : 2013.01.15
  • Published : 2013.02.28
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Abstract

When flammable gases are mixed with air or oxygen in the explosion concentration range and are ignited by sufficiently large electrostatic discharge energy, they may explode causing severe disaster in workplace. The minimum ignition energy(MIE) of single gas-air mixtures has been already investigated by many research, but the MIE of mixtures of more than ternary gas mixture is not examined yet. The purpose of this study is to investigate the MIE of a ternary gas(methane, ethylene, hydrogen, propane) mixtures experimentally. The results of our experiment show that the ignition of a methane-ethylene-air, methane-hydrogen-air, methane-propane-air, ethylene-hydrogen-air, ethylene-propane-air and hydrogen-propane-air mixture due to electrostatic discharge energy primarily depends on that the mixture: the MIE decreases gradually with the increase of having the lower MIE than other mixture ratio in the normal atmospheric pressure.

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References

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