Fire Science and Engineering (한국화재소방학회논문지)

Korean Institute of Fire Science and Engineering (한국화재소방학회)
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Prediction of the Detonation Limit of the Flammable Gases and Vapors Using the Stoichiometric Coefficient

양론계수를 이용한 가연성가스와 증기의 폭굉한계 예측

  • 하동명 (세명대학교 보건안전공학과)
  • Published : 2008.09.30
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Abstract

Detonation limit is one of the major physical properties used to determine the fire and explosion hazards of the flammable substances. In this study, the lower detonation limits (LDL) and the upper detonation limits (UDL) of the flammable substances predicted with the appropriate use of the heat of combustion and the stoichiometric coefficient. The values calculated by the proposed equations were a good agreement with literature data within a few percent. From a given results, It is to be hoped that this methodology will contribute to the estimation of the detonation limits of for other flammable substances.

폭굉한계는 가연성물질의 화재 및 폭발 위험성을 결정하기 위해 사용되는 중요한 연소 특성치 가운데 하나이다. 본 연구에서는 가연성혼합물의 구성하는 각 순수성분의 연소열과 기상 조성을 이용하여 폭발한계를 예측하였다. 제시된 방법론에 의한 계산값은 적은 오차범위에서 문헌값과 일치하였다. 따라서 본 연구에서 제시한 방법론이 다른 가연성물질의 폭굉한계 예측에 폭넓게 적용되기를 기대한다.

Keywords

References

  1. D.A. Crowl. and J.F Louver, "Chemical Process Safety Fundamentals with Applications", Prentice- Hall(1990)
  2. P.E. Cote. and J.L. Liniville, "Fire Protection Handbook", 18th ed, NFPA, Quincy, Massachusetts( 2002)
  3. M.A. Nettleton, "Gaseous Detonation: their Nature, Effects, and Control", Chapman and Hall, New York(1987)
  4. B. Hanley, "A Model for the Calculation and the Verification of Closed Cup Flash Points for Multicomponent Mixtures", Process Safety Progress, Vol. 17, No.2, pp.86-97(1998) https://doi.org/10.1002/prs.680170204
  5. Y. Lizhong et al. "Analysis of Fire and Explosion Hazards of Some Hydrocarbon-air mixtures", J. of Hazardous materials, Vol.A84, pp. 123-131(2001)
  6. B.Lewis and G. von Elbe, "Combustion, Flame and Explosion of Gases", 3rd ed., Academic Press (1987)
  7. R.H. Perry and G.W. Green., "Perry's Chemical Engineers' Handbook", 7th ed., MaGraw-Hill, New York(1997)
  8. D.R. Lide, "Handbook of Chemistry and Physics", 76th Edition, CRC Press, Boca Raton(1995)
  9. R.D. Cardozo, "Prediction of the Enthalpy of Combustion of Organic Compounds", AICHE Journal, Vol.32, No.5, pp.844-847(1986) https://doi.org/10.1002/aic.690320514
  10. T. Suzuki, "Empirical Relationship Between Lower Flammability Limits and Standard Enthalpies of combustion of Organic Compounds", Fire and Materials, Vol.18, pp.333-336(1994) https://doi.org/10.1002/fam.810180509
  11. F.Y. Hshieh, "Predicting Heats of Combustion and Lower Flammability Limits of Organosilicon Compounds", Fire and Materials, Vol. 23, pp.79-89 (1999) https://doi.org/10.1002/(SICI)1099-1018(199903/04)23:2<79::AID-FAM673>3.0.CO;2-F
  12. G.W. Jones, "Inflammation Limits and Their Practical Application in Hazardous Industrial Operation", Chem. Rev., Vol.22, No.1, pp.1-26(1938) https://doi.org/10.1021/cr60071a001
  13. J.C. Jones, "Reid Vapour Pressure as a Route to Calculating the Flash Points of Petroleum Fractions", J. of Fire Sciences, Vol.16, No.3, pp.222-227(1998) https://doi.org/10.1177/073490419801600306
  14. C.J. Hialado, "A Method for Estimating Limits of Flammability", Vol.6, pp.130-139(1975)
  15. D.G. Kleinbaum, L.L Kupper and K.E. Muller, "Applied Regression Analysis and Other Multivariable Methods", 2nd ed., PWS-KENT Publishing Company, Boston(1988)
  16. D.M. Ha, "Prediction of Explosion Limits Using Normal Boiling Points and Flash Points of Alcohols Based on a Solution Theory", T. of Korean Institute of Fire Sci. & Eng., Vol.19, No.4, pp.26-31(2005)
  17. D.M. Ha and S.J. Lee, "Prediction of the Net Heats of Combustion of Organic Compounds based on the Atomic Contribution Method", T. of Korean Institute of Fire Sci. & Eng., Vol.17, No.4, pp.7-12(2003)
  18. F.P. Lees, "Loss Prevention in the Process Industries Vol.1", 2nd ed., Oxford Butterworth- Heinemann(1996)
  19. V. Babrauskas, "Ignition Handbook", Fire Science Publishers(2003)