DOI QR코드

DOI QR Code

A Study of Fire Extinguishment Characteristic for the Real Scale Deap-Seated Fire

실규모 심부화재 소화특성에 관한 연구

  • Kim, Nam-Kyun (Graduate School, Incheon National University) ;
  • Rie, Dong-Ho (Fire Disaster Prevention Research Center, Incheon National University)
  • Received : 2015.02.04
  • Accepted : 2015.03.31
  • Published : 2015.04.30

Abstract

Real scale fire tests was carried out for extinguishing performance evaluation of the wetting agent. The experiment was conducted in accordance with a Class A fire extinguishing test methods specified in the 'Type Approval of the Manual System Fire Extinguisher and Technical Standards of Test'. In addition, the subjects of this experiment were the wood flour and rice husk. Fire-fighting water, the three kinds of wetting agents used in the country and this study was used, was undertaken to determine a clear discrimination of the water and wetting agent. In the experimental results, it was confirmed that the internal temperature is maintained long time in the case of water. The internal temperature were rapidly lowered in the experiment of wetting agents. Therefore, the discrimination of extinguishing ability was confirmed by the temperature distribution in accordance with time. Based on the results of this experiment, this study is expected to be used as a underlying material on presenting a method of optimized performance evaluation of wetting extinguishing agent.

본 연구는 침윤소화약제의 소화성능평가를 위해 실규모 소화실험을 수행하였다. 실험은 '수동식소화기의 형식승인 및 검정기술기준'에 명시되어 있는 A급 소화실험 방법에 따라 진행하였으며, 목재 외에도 목분과 왕겨를 대상으로 실험을 진행하였다. 소화용수는 물과 국내에서 사용되고 있는 3종의 침윤소화약제를 사용하여 성능평가 실험을 진행함으로써 물과 침윤소화약제의 명확한 변별력을 확인하고자 하였다. 실험 결과 물의 경우에서 내부 온도의 유지시간이 길게 유지되고 침윤소화약제의 경우 빠른 온도 하강을 나타냄을 확인하였으며, 시간에 따른 온도분포를 통해 소화능력의 변별력을 확인하였다. 본 실험 결과를 바탕으로 추후 최적화 침윤소화약제 성능평가 방법을 제시하는데 기초자료로 활용할 수 있을 것으로 판단된다.

Keywords

References

  1. S. C. Shin, B. W. Chun, Y. J. Kim, K. S. Kim, D. H. Choi and K. H. Kim, "Efficient Identification of Victim by Genotyping of Personal Articles from Chungdo Fire Accident", Korean Journal of Forensic Science, Vol. 5, No. 3, pp. 186-192 (2004).
  2. Fire Prevention Division of National Emergency Management Agency, "Carbon Dioxide Extinguishing of Safety Standards (NFSC 106)", NEMA Notice No. 2012- 122 (2012).
  3. I. C. Kong, I. K. Park, K. B. Lim and D. H. Rie, "A Study for Characteristics of Water that Penetrates Wood Flour due to Changes of Concentration of BDG", Journal of the Korean Society of Safety, Vol. 28, No. 3, pp. 74-79 (2013). https://doi.org/10.14346/JKOSOS.2013.28.3.074
  4. Korea Forest Research Institute, "Wood Plastic Composites", Korea (2012).
  5. T. J. Ohlemiller, "Modeling of Smoldering Combustion Propagation", Prog. Energy Combust. Sci., Vol. 11, Issue 4, pp. 277-310 (1985). https://doi.org/10.1016/0360-1285(85)90004-8
  6. Y. S. Kim, Y. C. Byun and J. H. Hwang, "Investigation and Theoretical Analysis of a Fire Accident Caused by Smoldering Combustion", Fire Science and Engineering, Vol. 13, No. 3, pp. 3-17 (1999).
  7. N. K. Kim, K. B. Lim and D. H. Rie, "A Study on Surface Absorption Dynamic Mechanism due to the Addition of a Surfactant in Cellulosic Combustibles", Journal of The Korean Society of Hazard Mitigation, Vol. 12, No. 6, pp. 223-229 (2012). https://doi.org/10.9798/KOSHAM.2012.12.6.223
  8. National Fire Protection Association, NFPA 12, "Standard on Carbon Dioxide Extinguishing Systems" (2005).
  9. S. A. El-Sayed and T. M. Khass, "Smoldering Combustion of Rice Husk Dusts on a Hot Surface", Combustion, Explosion, and Shock Waves, Vol. 49, No. 2, pp. 159-166 (2013). https://doi.org/10.1134/S0010508213020056
  10. J. L. Torero and A. C. Fernandez-Pello, "Natural Convection Smolder of Polyurethane Foam, Upward Propagation", Fire Safety Journal, Vol. 24, No. 1, pp. 35-52 (1995). https://doi.org/10.1016/0379-7112(94)00030-J
  11. K. N. Palmer, "Smouldering Combustion in Dusts and Fibrous Materials", Combustion and Flame, Vol. 1, No. 2, pp. 139-154 (1957).
  12. J. S. Kim and D. H. Rie, "Downward Smoldering Fire Characteristics of Wood Chips and Wood Flour", Journal of KOSHAM, Vol. 13, No. 1, pp. 269-274 (2013).
  13. N. K. Kim, K. B. Lim and D. H. Rie, "Validity Analysis of Scale Model Experiment for Wetting Agent Performance Evaluation", Fire Science and Engineering, Vol. 28, No. 2, pp. 14-19 (2014). https://doi.org/10.7731/KIFSE.2014.28.2.014
  14. N. K. Kim, K. B. Lim and D. H. Rie, "Wetting Agent Performance Evaluation Using Scale Model", Fire Science and Engineering, Vol. 28, No. 2, pp. 20-25 (2014). https://doi.org/10.7731/KIFSE.2014.28.2.020
  15. National Emergency Management, "Type Approval of the Extinguishing Agent and Technical Standards of Product Inspection", National Emergency Management Affairs Act 2012-57 (2012).
  16. Y. S. Kim, "A Study on the Explosion Efficiency And Risk Assessment of Combustible Wood Dust by Using the Cone Calorimeter", University of Inchoen of Master's Thesis (2012).
  17. W. T. Simpson, "Drying and Control of Moisture and Dimensional Changes", Wood Handbook - Wood as an Engineering Material, Forest Product Laboratory U.S.D.A forest Service Madison, Wisconsin, Chapter 12, pp. 1-21 (1987).