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Journal of the Korean Society of Hazard Mitigation 2014;14(3):243-252.
Published online June 30, 2014.
수평화염전파에 대한 매커니즘(ISO 12949에 따른 침대 매트리스 화염성상을 중심으로)
박계원, 정재군
Mechanism of Horizontal Flame Spread (Focusing on Fire Behavior of Bed Mattress according to ISO 12949)
Kye-Won Park, Jae-Gun Jeong
Abstract
This paper intends to analyze horizontal flame spread effect in fire. For its analysis, bed mattress which generally shows the high HRR in fire was applied as specimen, and several experiments regarding horizontal flame spreading effect according to ISO 12949 were conducted. First, a series of reaction-to-fire behavior`s phenomenon such as HRR, flame height, burning area, and temperature were measured the results of reaction-to-fire behavior of bed mattress products to the ISO 12949 method. Then, Calculation model on flame spreading speed was proposed based on opposed-winded flame spread equation of Quintierie. Finally comparing the measured result and the calculation result, mechanism on bed mattress were analyzed. In brief, the mean flame spread speed interpolated from the measured temperature at several points on the bed was consistent with the proposed calculation model.
Key Words: Fire Safety; Flame Spreading speed; HRR; FIGRA
요지
본 연구에서는 화재시 수평 화염전파 현상을 고찰하고자 함. 이를 위해 주거 화재시 높은 화재하중을 지닌 침대 매트리스를 선정하였으며, ISO 12949를 시험방법으로 채택하여 매트리스 상단에서 화재시의 수평화염확산 성상을 실험하였음. 우선, 화재 실험시 매트리스에서 발생되는 화재반응 현상(열방출율, 화염의 높이, 연소 면적, 표면 온도 등)들을 측정하여 매트리스 화재성상을 고찰하였으며, 이러한 측정값과 이론식의 비교를 통해 궁극적으로는 화염전파 매커니즘을 규명하고자 하였음. 매트리스의 화염전파 실험결과를 계산식으로 추정하기 위해서는, 대류 열유속과 복사 열유속을 합성한 복합 열유속의 산출을 수행하여야만 매트리스 화염전파 매커니즘을 구현할 수 있었음.
핵심용어: 화재안전; 화염 전파속도; 열방출율; 화재성장지수


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