Abstract
본 연구는 인화성 액체를 특정 용기에 담유하고 구획된 공간에서 연소 실험을 실시하여 연소 패턴을 분석하는 데 있다. 담유 실험에 사용된 용기는 깊이 20 mm, 넓이 150 mm의 플라스틱이다. 화염이 착화되어 연소되는 과정은 디지털카메라(digital camera) 및 비디오카메라(video camera)를 이용하여 확보하였다. 화염이 최성기에 도달하는 속도는 벤젠이 가장 빠르고 약 60 s이다. 반면 가장 늦게 것은 알코올이었으며 약 360.0 s로 6배 정도 차이가 있었다. 화염이 최성기에 도달하였을 때 플라스틱 용기와 인화성 액체가 동시에 연소됨에 따라 연기는 대부분 검정색이었다. 연소가 완료된 후유증 검지관(crime investigation tube)을 이용하여 유증을 조사한 결과 대두유를 제외한 모든 인화성 물질에서 유증 채취가 가능했다. 즉, 연소 물질의 종류에 따라 화재의 확산 속도 및 패턴 등에 큰 차이가 있다는 것을 알 수 있었다. The purpose of this study is to analyze combustion patterns by filling a specific container with a flammable liquid and performing combustion tests in a divided space. The container used for the test is made of plastic, 20 mm in depth and 150 mm in width. After the liquid was ignited, its combustion process was photographed using a digital camera and video camera. It was found that in the case of benzene, the flame reached its peak at the fastest speed about 60 s while in the case of alcohol, the flame reached its peak at the lowest speed about 360 s, which is approximately six times slower than the benzene. In most cases, when the flame reached its peak, smoke generated was dark as the plastic container and flammable liquid were combusted simultaneously. After completion of the combustion, it was possible to sample oil vapor from all flammable liquids excluding soybean oil as a result of the examination of oil vapor using a crime investigation tube. That is, it can be seen that there is significant difference in flame propagation speed, pattern, etc., depending on the combustible substances.
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