화재 진압용 스프링클러 헤드 유형에 따른 살수 균일도 분석

• Published in: 한국분무공학회지 Vol. 28; no. 2; pp. 97 - 104
• Main Authors: 방새미, Saemi Bang, 안찬섭, Chanseob Ahn, 김태훈, Taehoon Kim
• Format: Journal Article
• Language: Korean
• Published: 한국분무공학회 30.06.2023
• Subjects: Building fire; Fire extinguishing system; Fire safety; Sprinkler; Water flux distribution; 건물 화재; 살수 분포; 소화설비; 스프링클러; 화재 안전
• ISSN: 1226-2277; 2288-9051

A sprinkler is a fire suppression system that extinguishes combustible materials in the early stages of a fire, creating a spray. However, spray formation method of the sprinkler can result in an uneven distribution of water spray on the surface of combustible materials. It is necessary to ensure a consistent water flux density regardless of the spray direction and angle. In this study, the water flux distribution was analyzed for the various types of sprinkler head: circular, flush, pendent, and upright types. All sprinkler heads have a K-factor of 80 LPM/(0.1MPa)0.5. In this study, water collection cubes were used to examine the water flux distribution. The upright type sprinkler head showed a low standard deviation in total sprayed area, indicating a high level of uniformity. The upright type head showed the lowest standard deviation in the radial direction, and also showed the lowest standard deviation in the azimuthal direction. Upright sprinkler head has no obstructing structure along the path of droplets after they are generated. For this reason, upright sprinkler head showed the most uniform water flux distribution on the floor.