Fire Science and Engineering (한국화재소방학회논문지)

Korean Institute of Fire Science and Engineering (한국화재소방학회)
권호 표지
DOI QR코드

DOI QR Code

Fire Extinguishing Capability of an Automatic Spreading Fire Extinguisher in Accordance with Horizontal Distance from a Fire Source

자동확산소화장치의 이격거리에 따른 소화성능평가연구

  • Received : 2013.08.04
  • Accepted : 2013.10.11
  • Published : 2013.10.31
Download PDF
⟨ Previous Next ⟩

Abstract

An automatic spreading fire extinguisher usually installed in a closed area like a boiler room, a laundry store or a restaurant's kitchen room is one of the fire protection equipments. This extinguisher automatically discharges dry powder, extinguishing fire. As this extinguisher has the extinguishing capability applicable to the nominal protection area, objects outside the area cannot be properly extinguished. However only its number is being requested according to the floor area in the related laws, and the extinguishing capability depends on the distance from a fire source. In this study we tried to investigate the extinguishing capability of the automatic spreading fire extinguisher in accordance with horizontal separation distance from a fire source. It appeared that the maximum horizontal separation distance was about 30 cm for both class A and B fire to be certainly extinguished.

보일러실이나 세탁소, 또는 음식점과 다중이용업소의 주방에 주로 설치하는 자동확산소화장치는 화재발생 시 화염이나 열에 의해 자동으로 약제가 방출되어 화재를 진압하는 소화기구 중 하나이다. 이 소화장치는 공칭방호면적에 해당하는 소화능력을 가지고 있으므로 방호대상물이 이 범위를 벗어나 있으면 유효한 화재진압이 보장되지 않지만 현행 기준에는 바닥면적에 따른 설치갯수만 요구하고 있다. 따라서 방호대상물과의 이격거리에 따라 소화성능은 달라지게 되며 이에 대한 특성을 고찰하고자 천장높이가 2.5 m인 모형화재실에 본 소화장치를 설치하고 A급, B급 모형가연물과의 수평이격거리에 따른 소화실험을 실시하였다. 실험결과 일반가연물과 유류가연물을 모두 확실하게 소화할 수 있는 최대수평이격거리는 약 30 cm인 것으로 나타났다.

Keywords

References

  1. "National Fire Safety Code (NFSC 101)", NEMA (2012).
  2. Y. G. Choi, B. D. Yoon, Y. G. Kim and M. C. Shin, "A Study on the Development of an Automatic Fire Extinguisher for Power Sub-station systems", Proceedings of 2010 Autumn Annual Conference, Korean Institute of Fire Science & Engineering, pp. 345-348 (2010).
  3. C. S. Park, J. S. Choi and C. G. Jeon, "The Characteristics of Extinguishant Transfer According to the Nozzle Conditions of a Fixed Aerosol System", Journal of Korean Institute of Fire Science & Engineering, Vol. 18, No. 2, pp. 41-48 (2004).
  4. J. H. Kwark, D. S. Kim and B. S. Son, "Development of Fire Extinguishing System Suitable for Unmanned Engine Room of a Small Ship", Proceedings of 2006 Spring Annual Conference, Korean Institute of Fire Science & Engineering, pp. 109-113 (2006).
  5. J. H. Kwark, "Fire Extinguishing Characteristics of an Automatic Spread Extinguisher in an Unmanned Engine Room", Proceedings of 2006 Spring Annual Conference, Korean Institute of Fire Science & Engineering, pp. 114-121 (2006).
  6. J. G. Quintiere, "Principles of Fire Behavior", Thomson Learning (2004).