Analysis of Temperature Rise and Operation Time of Differential Spot Type Detector in Case of Mattress Fire in Multi-family House

다가구 주택의 매트리스 화재 시 차동식 스포트형 감지기의 온도상승 및 동작시간 분석

  • Kim, Seo-Young (Department of Fire & Disaster Prevention, Woosuk University) ;
  • Kong, Ha-Sung (Department of Fire & Disaster Prevention, Woosuk University)
  • 김서영 (우석대학교 소방방재학과) ;
  • 공하성 (우석대학교 소방방재학과)
  • Received : 2021.08.25
  • Accepted : 2021.09.17
  • Published : 2021.09.30


This study developed a scenario to understand the reaction rate and operational time according to RTI value of rate of rise detector in each type in case of fire mattress. In the results of analyzing the reaction rate and operational time of detector in each scenario, in case when installing a single detector, the elevated temperature per minute was raised to 8℃/min ~ 9℃/min. In case when installing two detectors, it was raised to 9℃/min ~ 10℃/min. In case when installing three detectors, it was raised to 10℃/min. The horizontal distance between detector and mattress was 1.8m~2.5m. Whenever the number of detectors was increased, the horizontal distance was decreased. The operational time of detector was within maximum 540 seconds and minimum 420 seconds. As the research tasks in the future, there should be the researches on the effects of reaction rate of detector on the evacuation in case of fire through the result value of RSET by setting up the latency until the detector operates, and the researches on the safety by understanding if the operational time of detector is suitable for the evaluation standard of performance-centered design.