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Journal of the Korean Society of Hazard Mitigation 2015;15(5):123-129.
Published online October 31, 2015.
Room Corner Test
박영주, 이해평
A Study on Analysis of Heat Release Rate on Household Goods Computer·Desk·Electric Pad) for Fire Identification
Youngju Park, Haepyeong Lee
Abstract
Abstract:In this study, a combustion experiment of the monitor, body, desk, chair and electric blanket used in daily life was carried out using the oxygen consumption rate principle-based Room Corner Tester(RCT), in order to provide practical data about heat release rates and smoke release rates of daily supplies. As the result, the computer monitor's maximum heat release rate was 166.28 kW/m2. This is the relatively highest heat release rate among the five daily supplies and 20.55 times bigger than the body. This was followed by the chair, electric blanket, desk and computer body. The computer monitor showed the highest total heat release rate at 52.5 kW/m2 and the total smoke release of the desk, electric blanket, computer body, monitor and chair was 35,274 m2/m2, 31,859 m2/m2, 27,121m2/m2, 14,369 m2/m2, and 8,403 m2/m2 respectively. Therefore, it is considered that heat transfer in the monitor and electric blanket with high heat release rates is fast due to the high heat quantity in the event of fire and the desk can be an important clue to measure the direction and intensity of flames, because this leaves many traces of soot caused by much smoke.
Key Words: Household goods; Computer monitor; Computer body; Desk; Chair; Electric blanket; Heat release late
요지
본 연구에서는 생활용품의 발열량과 발연량에 대한 실질적인 데이터를 제공하고자 산소소모율 원리의 Room Corner Tester(RCT)를 이용하여 일상생활에 사용되고 있는 모니터, 본체, 책상, 의자, 전기담요 등에 대한 연소실험을 수행하였다. 연구결과, 컴퓨터 모니터는 최대열방출율이 166.28 kW/m2로 나타나 5가지 생활용품 가운데 상대적으로 가장 높은 열방출율을 보였으며, 본체에 비하여 20.55배 높은 것을 알 수 있었다. 다음으로는 의자 > 전기담요 > 책상 > 컴퓨터 본체 순으로 나타났다. 총열방출량은 컴퓨터 모니터가 52.5 kW/m2으로 가장 많은 열량을 방출하였으며, 총연기방출량은 책상 35,274 m2/m2, 전기담요 31,859 m2/m2, 컴퓨터 본체 27,121m2/m2, 모니터 14,369 m2/m2, 의자 8,403 m2/m2인 것을 알 수 있었다. 따라서, 발열량이 높은 모니터와 전기담요는 화재 시 높은 열량으로 인한 열전달속도가 빠르게 진행될 것으로 사료되며, 책상은 많은 연기방출로 인해 그을음의 흔적을 상대적으로 많이 남기게 되어 불길의 방향 및 강도를 추정하는데 중요한 단서가 될 수 있을 것으로 사료된다.
핵심용어: 화재감식; 생활용품; 모니터; 본체; 책상; 의자; 전기장판
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