Fire Science and Engineering (한국화재소방학회논문지)

Korean Institute of Fire Science and Engineering (한국화재소방학회)
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A Study on Fire Extinguishing Performance Evaluation of Compressed Air Foam System

압축공기포 소화설비의 소화성능 평가에 관한 연구

  • Lee, Jang-Won (Korea Fire Institute of Industry & Technology) ;
  • Lim, Woo-Sub (Korea Fire Institute of Industry & Technology) ;
  • Kim, Sung-Soo (Graduate School of Safety Engineering, University of Incheon) ;
  • Rie, Dong-Ho (Fire Disaster Protection Research Center, University of Incheon)
  • Received : 2012.08.24
  • Accepted : 2012.10.12
  • Published : 2012.10.31
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Abstract

This research is to evaluate the fire extinguishing performance of Compressed Air Foam System and this test was conducted using Foam Head System. Compressed Air Foam System adopt the methods of causing the foam by mixing compressed air in foam-aqueous solution, In Overseas, CAFS (Compressed Air Foam System) is generally used because long distance discharge is possible and the water damage can be minimized by reducing the water usage. In this study, Comparative analysis on fire extinguishing effect is done through test to compare the performance between Foam System applied existing air mixture method and Compressed Air Foam System applied AFFF 3 %, foam-extinguishing-agent based on UL162 standard. In Compressed Air Foam System, the volume proportion of air mixture to foam-aqueous solution is 1 to 1 and discharging flow rate is 140 L/min, 160 L/min, 180 L/min, 200 L/min each. As a result of the test, in terms of fire extinguishing performance, fire suppression time for Compressed Air Foam Systems is shorter than for General Air Mixture System in all flow conditions.

본 연구는 압축공기포 소화설비의 소화성능을 평가하기 위해 포헤드 설비를 이용하여 실험을 진행 하였다. 압축공기포 소화설비는 포수용액에 압축공기를 혼입하여 포를 발생시키는 방식으로 해외에서는 원거리 방수가 가능하고 물 사용량을 줄여 수손피해를 최소화할 수 있는 압축공기포 소화설비(CAFS: Compressed Air Foam System)가 많이 활용되고 있다. 본 연구에서는 UL162 기준으로 수성막포 3 % 포 소화약제를 적용하여 기존의 공기 혼입 방식에 의한 포 소화설비와 압축공기포 소화설비간 비교 실험을 통하여 소화 성능 효과를 비교 분석하였다. 압축공기포 소화설비의 공기 혼입 비율은 포 수용액과 1 : 1의 부피 비율로 하였으며 발포유량은 각각 140 L/min, 160 L/min, 180 L/min, 200 L/min으로 변화를 주면서 소화효과를 검증하였다. 그 결과 소화 성능면에서는 압축공기포 소화설비가 공기 혼입 방식보다 모든 유량 조건에서 소화시간이 빠르게 나타났다.

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References

  1. NEMA Code 2012-57, "Approval of Type & Test Methods for Fire Extinguisher Agent" (2012).
  2. NEMA Code 2012-81, "Standard for Performance Certification & Product Inpection of Foam-Extinguishing- Agent Proportioner" (2012).
  3. J. S. Nam, "A Literature Investigation of Compressed- Air Foam System (CAFS)", A Nationwide Fire related College and University Professor Council Academic Seminar (2008).
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  5. Miracle CAFS of Japan, "Introduction to and Operation of Compressed Air Foam Systems" Miracle co (2008).
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  7. UL162, "Standard for Safety for Foam Equipment and Liquid Concentrates", Underwriters Laboratories, Northbrook, IL (1999).
  8. NFPA 11, "Stanndard for Low-, Medium-, and High- Expansion Foam" (2005 Edition, NFPA).
  9. NEMA Code 2012-56, "Approval of Type & Test Methods for Fire Extinguisher" (2012).

Cited by

  1. Class B Fire-Extinguishing Performance Evaluation of a Compressed Air Foam System at Different Air-to-Aqueous Foam Solution Mixing Ratios vol.6, pp.7, 2016, https://doi.org/10.3390/app6070191