Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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Fire Suppression Effect of PPV with Water Mist System

미세물분무를 이용한 PPV의 화재진압효과

  • Kim, Sung-Won (Department of Safety Engineering, Chungbuk National University) ;
  • Shin, Chang-Sub (Department of Safety Engineering, Chungbuk National University)
  • Published : 2003.12.01
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Abstract

To inject fresh air into a fire room, Positive Pressure Ventilation (PPV) can be used and the blower of PPV increases inside pressure of the room. It makes high flow rate of products of combustion, smoke and heat from the structure, and it is very helpful to fireman on the fire extinguishing work. The flame moves to the direction of airflow and the temperature of flame can be decreased rapidly. In this experiment, a water mist system is applied to PPV to increase the effectiveness, and various effective factors are studied. n-Heptane and pine wood stick were used as fuel. Temperatures at the above and behind the combustion pan were strongly reduced by the water mist system and by the convective cooling with airflow. The smoke density was also decreased by PPV with water mist system and it can be explained by the absorption of smoke particles on the water mist droplet and by the strong exhausting effects of mobile fan.

Keywords

References

  1. 신창섭외 5인 공역, '방폭공학', 동화기술, 2000
  2. B. Crandell, E. Hartin, 'The Standard Offense : Fire Attack', Positive Pressure Training Manual of Tempest, 1992
  3. M Ertel, C.B Gregory, 'Firefighting-Basic Skills and Teclmiques', The Goodheart-Willcox Com-pany, Inc. 1998
  4. www.firetactics.com
  5. H. Ingason, R. Fallberg, 'Positive Pressure Venti-lation in Single Medium-Sized Premises', Fire Teclmology, Vol. 38, No.3, pp. 213~230, 2002 https://doi.org/10.1023/A:1019825931076
  6. S. Svensson, 'A Study of Tactical Patterns During Fire Fighting Operations', Fire Safety J., Vol. 37, No.7, pp. 673~695, 2002 https://doi.org/10.1016/S0379-7112(02)00027-9
  7. J. Rimen, 'The Use of Positive Pressure Ventila-tion in Fire Fighting Operations', Fire Engineers, Vol. 60, No. 206, pp. 7~13, 2000
  8. S. Svensson, 'Experimental Study of Fire Venti-lation During Fire Fighting Operations', Fire Technology, Vol. 37, No. 1, pp. 69~85, 2001 https://doi.org/10.1023/A:1011653603104
  9. 이경덕, 신창섭, '방사특성 변화에 따른 미세물 분무의 소화특성', 한국 화재·소방학회, 제15권, 제4호, pp. 41~48, 2001
  10. 이경덕, '저압식 미세물분부 시스템의 소화성능 최적화와 첨가제의 영향', 공학박사학위논문, 충북대학교 안전공학과, 2002
  11. J. Rimen, 'An Assessment of the Use of Positive Pressure Ventilation in Domestic Properties', FRDG Publication Number 17/96, 1996
  12. 'Tyne & Wear Fire Brigade PPV Trials - at Cbiltem fire', 1998
  13. J.A Victor, 'Use of Positive Pressure Ventila-tion(PPV) Fans to Reduced the Hazards of Entering Chemically Contaminated Building', U.S. Army Edgewood Chemical Biological Center (ECBC), Report No. ECBC-TR-065, 2000
  14. M Tuomisaari, 'Smoke Ventilation on Operational Fire Fighting', VTT PUBliCATIONS 326, Technical Research Center of Finland, 1997
  15. G.D. Lougheed, P.J. McBride, D.W. Carpenter, 'Positive Pressure Ventilation for High-Rise Buildings', NRCC, Research report 102, 2002
  16. 'The SFPE Handbook of Fire Protection Engi-neering', NFPA, 1995
  17. 수동식 소화기의 형식승인 및 검정기술기준 (KOFEIS 0901), 한국소방검정공사, 2000