The Consequence Analysis for Unconfined Vapor Cloud Explosion Accident by the Continuous Release of Gas-Liquid Flow

기-액흐름 연속누출에 의한 개방공간 증기운 폭발사고의 영향평가

  • 장서일 (명지대학교 공과대학 화학공학과) ;
  • 이헌창 (명지대학교 공과대학 화학공학과) ;
  • 김태옥 (명지대학교 공과대학 화학공학과)
  • Published : 2002.09.01

Abstract

For the unconfined vapor cloud explosion accident by the continuous release of gas-liquid flow of various saturated liquids in a vessel at ground level, overpressures were estimated and analyzed with various release conditions and materials by TNT equivalency model with vapor dispersion. We found that at same release conditions, overpressure showed n-heptane > xylene > n-hexane > toluene > n-heptane > benzene, respectively and that overpressure was increased with increasing the hole diameter and the storage pressure, but it was increased with decreasing the wind speed, the interested distance, and the vessel thickness.

Keywords

References

  1. AIChE/CCPS, 'Guidelines for Hazard Evaluation Procedure', Center for Chemical Process Safety(CCPS) of the American Institute of Chemical Engineers (AIChE), New York, 1985
  2. AIChE/CCPS, 'Guidelines for Chemical Process Quantitative Risk Analysis', CCPS of AIChE, New York, 1989
  3. KISCO, 'Safety Planning in Chemical Industry', The Korea Industrial Safety Co.(KISCO), Korea, pp.8-28, 1993
  4. Council of the European Communities, 'Council Directive on the Major Accident Hazards of Certain Industrial Activities', Official J. of the European Communities, No. L230, 1982
  5. ILO, 'Prevention of Major Industrial Accident', International Labor Office(ILO), Geneva, No. 174, 1993
  6. D. A. Crowl and J. F. Louvar, 'Chemical Process Safety: Fundamentals with Applications', Prentice-Hall Inc., New York, 1990
  7. S. R. Hanna, D. Strimaitis, and J. C. Chang, 'Hazard Response Modeling Uncertainty(A Quantitative Method) - Volume II. Evaluation of Commonly-Used Hazardous Gas Dispersion Models', F08635-89-C-0136, The American Petroleum Institute(API), Westford, MA 01886, Sept., 1991
  8. J. A. Havens, 'Prediction of Atmosphere Dispersion for Accident Consequence Assessment and Mitigation: Safety Analysis and Risk Assessment for Chemical Process Industry Practitioners - Course 3. Consequence Assessment and Mitigation', CCPS of AIChE, May, 1992
  9. R. E. Britter and J. McQuaid, 'Workbook on the Dispersion of Dense Gases', Health and Safety Executive(HSE), No.17, U. K., 1988
  10. T. G. Hoot, R. N. Meroney, and J. A. Peterka, 'Wind Tunnel Tests of Negatively Buoyant Plumes', EPA-650/3-74-003(NTIS PB 231590), The Fluid Dynamics and Diffusion Laboratory of Colorado State University and Environmental Protection Agency, Oct., 1973
  11. D. L. Ermak, 'User's Manual for SLAB: An Atmospheric Dispersion Model for Denser-Than-Air Releases', UCRL-MA-105607, Lawrence Livermore National Laboratory, CA, Jun., 1990
  12. H. G. Fisher, 'Emergency Relief System Design Using DIERS Technology: The Design Institute for Emergency Relief Systems(DIERS) Project Manual', DIERS of AIChE, 1992
  13. W. K. Crowley, 'Structures to Resist the Effects of Accidental Explosions', Technical Manual TM 5-1300, U.S. Army, Navy, and Air Force, U. S. Government Printing Office, Washington, D.C., 1969
  14. H. K. Fauske, 'Flashing Flows or : Some Practical Guidelines for Emergency Releases,' Plant Operations Prog., Vol. 4, pp. 132-134, 1985
  15. D. N. Blewitt, S. T. Chan, and H. C. Rodean, 'Conduct of Anhydrous Hydrofluoric Acid Spill Experiments', International Conference on Vapor Cloud Modeling, CCPS of AIChE, Cambridge Univ., Massachusetts, pp.1-38, 1987
  16. Industrial Risk Insurers(IRI), 'Oil and Chemical Properties Loss Potential Estimation Guide', IRInformation, IM 8011, 1992
  17. F. P. Lees, 'Loss Prevention in the Process Industries', Botterworths-Heinemann Ltd., Vol. 2, London and Boston, 1991