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http://dx.doi.org/10.7731/KIFSE.2013.27.6.089

A Phenomenological Study on the Flame Spread of Air Conditioner Indoor unit by Fire Tests  

Choi, Seung-Bok (Dept. of Fire & Explosion Investigation Team, Seoul Metropolitan Police Agency)
Lee, Seung-Hun (Dept. of Fire & Explosion Investigation Team, Seoul Metropolitan Police Agency)
Choi, Min-Ki (Dept. of Fire & Disaster Protection Engineering Graduate School, Gachon Univ.)
Choi, Don-Mook (Dept. of Fire & Disaster Protection Engineering)
Publication Information
Fire Science and Engineering / v.27, no.6, 2013 , pp. 89-96 More about this Journal
Abstract
The purpose of this study is to check the fire origin and cause of the fire by observing the shape of the flame propagation in air-conditioner indoor unit through the fire tests. We supposed that the flame is spread from the surroundings to the top of the air-conditioner and ignited on top of the air-conditioner with n-heptane. And then repeated this experiment twice under the same conditions. After the ignition, refrigerant filled in air-conditioner and lubricating oil exploded with large explosion and flame having high temperature and pressure belched out rapidly due to bursting refrigerant pipe linked air-conditioner between 734 seconds and 559 seconds. After result of checking the combustion residue we found that almost all of that was lost except a part of the evaporator, motor and metal. The position of short-circuit traces of wiring for the air-conditioner ignited itself is similar to that of fire damage by external flame. Therefore, we verified that it is not certain to determine the ignition cause and point by only the shape of the combustion residues.
Keywords
Air conditioner fire; Combustion residue; Lubricating oil;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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