설치 방법에 따른 스프링클러 분무의 살수밀도 분포 균일도 개선

In a sprinkler system, the nonuniform water flux distribution resulting from the sprinkler head design, specifically dueto the deflector and frame, impedes the primary extinguishing surface cooling effect of the sprinkler. In this study, theeffects of the distance between heads, supplying flow rate, head installation direction, and head installation height on theuniformity of the water flux density distribution were investigated. Simulations were conducted using the water fluxdistribution reproduction method proposed in a previous study. As the distance between heads decreased, water was suppliedto the bottom of the head, resulting in the improved uniformity of the water flux distribution. When the flow rate wascorrected with the changes in the distance between the heads to maintain the average water flux density supplied to thefloor, a uniform water flux distribution was observed even when the distance between heads was relatively large. In thecase of head installation direction, the most uniform distribution was observed when the sprinkler heads were installedalternately at angles corresponding to 0° and 135°. As the installation height of the sprinkler heads increased, the differencebetween the maximum and minimum local water flux densities decreased, leading to a more uniform water flux densitydistribution.