Analysis on the Effect of Obstruction on Sprinkler Skipping in Air Conditioner Room Fire

Sprinkler skipping is an important issue in fire spread. In general, two sprinklers are installed air conditioner rooms at the ceiling and 30 cm below to avoid spray failure by energy recovery ventilator ceiling. However, there a problem that sprinkler occurs room. this study, phenomenon was analyzed through numerical analysis applicability of open type operation method reviewed. As result, when upper works, occurred all cases. The lower shall not rise above operating temperature 68.3 °C with maximum 65 °C. particular, caused reduces head more than 8 concentrating droplets. type, simultaneous capable obtaining appropriate extinguishing effect covering source sprinkler. research results expected help protection buildings such as modern apartments air-conditioned rooms.