The Pyrosim fire simulation program was used to investigate changes in operating time as a function of the attachment height of a fixed-temperature detector. Operating times were analyzed for detector heights ranging from 4 m to 7.5 m, in 0.5 m increments, within a 30 m2 space. The fire source was modeled as a wooden pallet 1.22 m in height, and a Type 1 fixed-temperature detector with an activation temperature of 67.9℃ was used. The simulation results showed that operating time increased progressively with detector height, rising from 155.7 seconds at 4m to 206.3 seconds at 7.5 m a maximum delay of 50.6 seconds. Notably, larger increases were observed in the 4 m ~ 4.5 m and 6 m ~ 6.5 m ranges 14.9 and 11.5 seconds, respectively than those observed in other intervals. This suggests that critical height ranges should be considered when establishing detector installation standards. This study found that current design standards may not ensure adequate detection performance in high-ceilinged structures. In warehouses and industrial facilities with ceilings of 6m or higher, such delays in detector activation could hinder early detection, indicating a need for improvements
목차
Abstract 1. 서론 2. 선행연구 및 기초이론 2.1 선행연구 2.2 정온식감지기 3. 본론 3.1 연구 모델 3.2 PyroSim 프로그램 3.3 시나리오 구성 3.4 입력변수 및 입력값 3.5 연구결과 및 고찰 4. 결론 5. References
키워드
Fixed-temperature heat detectorPyroSimNFPA 72Fire simulationActivation time
저자
김주성 [ Jusung Kim | 우석대학교 일반대학원 소방안전공학과 박사과정 ]
공하성 [ Hasung Kong | 우석대학교 소방방재학과 교수 ]
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