Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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An Estimation of the Consequence Analysis for Asphyxiation Accident in Confined Space using C.F.D.

CFD를 활용한 밀폐공간 가스질식사고의 피해 영향 평가

  • Cho, Wan Su (School of Industrial Management and Safety Engineering, Korea National University of Transportation) ;
  • Kim, Eui Soo (School of Industrial Management and Safety Engineering, Korea National University of Transportation)
  • 조완수 (한국교통대학교 산업경영안전공학부) ;
  • 김의수 (한국교통대학교 산업경영안전공학부)
  • Received : 2018.06.15
  • Accepted : 2018.10.24
  • Published : 2018.10.31
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Abstract

Recently, various engineering approaches have been widely used in the accident investigation field to identify the cause of the accident and to predict damage by accident. Computational analysis is the most commonly used method of accident investigation technique. This technique is mainly used to identify the mechanism of the accident generation and to determine the cause when it is difficult to reproduce the situation at the time of the accident or when it is impossible to perform a reproduction experiment. In this study, The computational fluid dynamics analysis for nitrogen asphyxiation accident generated by defect of building structural between diffusion outlet and cooling tower was performed to determine the inflow path of the suffocation gas, death possibility by concentration of suffocation gas and predicted the time of death due to the accident using 3D modeling and FLACS program. We can quantify diffusion concentration of asphyxiation gas and predict mechanism of death occurrence by accident and evaluate the consequence Analysis through this study. In the future, This method can be widely used in the field of gas safety by improving the reliability and validity of the analysis.

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References

  1. "Annual Gas Accident Statistics," Gas Accident Almanac, Korea Gas Safety Corporation, pp. 27-32, 2016.
  2. Y. D. Jo, "Estimate Minimum Amount of Methane for Explosion in a Confined Space," Journal of KIGAS, Vol.21, No.4, pp.1-5, 2017.
  3. B. H. Kwon, "A Study on Asphyxiation Accidents Occurred in the Confined Space, and their Prevention," Journal of KSMS, Vol.18, No.3, pp. 47-54, 2016.
  4. J. W. Choi, C. W. Park, S. H. Lee, and D. J. Kim, "Dispersion Characteristics of Hydrogen Gas by the Effect of Leakage Hole Size in Enclosure Space," Journal of KAICS, Vol.17, No.5, pp. 26-35, 2016.
  5. H. J. Aha, S. H. Lee, N. K. Hur, M. K. Lee and G. J. Yong, "The Numerical Simulation of Hydrogen Jet Diffusion For Hydrogen Leakage in The Enclosed Geometry," Journal of KSCFE, Vol.14, No.2, pp. 32-38, 2009.
  6. E. S. Kim, J. H. Sim, J. P. Kim and N. K. Park, "The Study on Evaluation of Human Body Injury by Explosion of Portable Butane Gas Range," J. Korean Soc. Saf., Vol.31, No.3, pp.60-67, 2016. https://doi.org/10.14346/JKOSOS.2016.31.3.60
  7. E. S. Kim, J. H. Kim and M. G. Kim, "Forensic Engineering Study on the Explosion Accident Investigation of the Centrifugal Casting Machine Using ADINA FSI," J. Korean Soc. Saf., Vol.26, No.4, pp.27-33, 2011. https://doi.org/10.14346/JKOSOS.2011.26.4.027
  8. E. S. Kim, J. H. Kim, J. H. Sim, J. P. Kim, J. M..Goh and N. K. Park, "A Forensic Engineering Study on Evaluation of Explosive Pressure and Velocity for LNG Explosion Accident using AUTODYN,," J. Korean Soc. Saf., Vol.30, No.4, pp.56-63, 2015. https://doi.org/10.14346/JKOSOS.2015.30.4.56
  9. "Technical Guidelines for Enforcement of Confined Space Health Work Program" KOSHA GUIDE H-80-2012, Korea Occupational Safety & Health Agency, 2012.