천장형 에어컨이 스프링클러 헤드 작동에 미치는 영향에 관한 연구 = A Study on the Effect of Ceiling Type Air Conditioner on Sprinkler Head Operation

다국어 초록 (Multilingual Abstract)

This paper analyzes the effect of airflow of ceiling air conditioner on the operation of sprinkler head using a simulation program. The simulation space is 10 m × 7 m × 3 m, and the size of the fire is 0.8 m × 0.8 m × 0.6 m. The cold air flow from the air conditioner is at 25℃ and the wind speed is divided into three cases : 10 ㎧, 8.5 ㎧, and 7.5 ㎧. Simulation results show that all cases had operating delays compared to when the air conditioner was not running, and the sprinkler head did not operate until 10 minutes had elapsed at 10 ㎧ wind speed. These results confirmed that the sprinkler head was delayed in the air conditioning space and the worst result of early evolution failure was observed in strong winds such as 10 ㎧.

참고문헌 (Reference)

1 최문수, "천장형에어컨 기류가 화재감지기 작동에 미치는 영향 분석" 한국화재소방학회 32 (32): 40-45, 2018

2 National Fire Agency, "NFSC 203"

3 Yeo, Y. -J., "Fire Protection Systems Engineering : Sprinkler System"

4 Choi, M. -S., "A Study on the Response Characteristics of Fire Detector in Ceiling Air Conditioning Environment" Seoul National Univ. of Science and Technology 2019

5 Jang, H. D., "A Study on the Indoor Flow According to Vane Angle of Square Ceiling Type Louver Diffuser" 2011 (2011): 1457-1461, 2011