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Fire Sci. Eng. > Volume 27(2); 2013 > Article
Journal of Korean Institute of Fire Science and Engineering 2013;27(2):11-17.
DOI: https://doi.org/10.7731/KIFSE.2013.27.2.011    Published online April 30, 2013.
노말언데칸의 연소특성치의 측정
세명대학교 보건안전공학과
The Measurement of Combustible Characteristics of n-Undecane
Ha Dong-Myeong
Department of Occupational Health and Safety Engineering, Semyung University
노말언데칸의 안전한 취급을 위해서 하부인화점, 상부인화점, 연소점 그리고 발화지연시간에 의한 발화온도를 측정하였다. 또한 노말언데칸의 하부와 상부인화점의 측정값을 이용하여 폭발하한계와 상한계를 예측하였다. 밀폐식 장치에 의한 노말언데칸의 하부인화점은 $59^{circ}C$$67^{circ}C$로 측정되었고, 개방식 장치에 의한 하부인화점은 $67^{circ}C$$72^{circ}C$로 측정되었다. 클리브랜브 장치에 의한 노말언데칸의 연소점은 $74^{circ}C$로 측정되었다. ASTM E659-78 장치를 사용하여 자연발화 온도와 발화지연시간을 측정하였고, 여기서 측정된 최소자연발화온도는 $198^{circ}C$였다. 측정된 하부인화점 $59^{circ}C$와 상부인화점 $83^{circ}C$를 이용하여 예측된 폭발하한계는 0.65 Vol.%, 폭발상한계는 2.12 Vol.%였다.
For the safe handling of n-undecane, the lower flash points and the upper flash point, fire point, AITs (auto-ignition temperatures) by ignition delay time were experimented. Also lower and upper explosion limits by using measured the lower and upper flash points for n-undecane were calculated. The lower flash points of n-undecane by using closed-cup tester were measured $59^{circ}C$ and $67^{circ}C$. The lower flash points of n-undecane by using open cup tester were measured $67^{circ}C$ and $72^{circ}C$, respectively. The fire point of n-undecane by using Cleveland open cup tester was measured $74^{circ}C$. This study measured relationship between the AITs and the ignition delay times by using ASTM E659 apparatus for n-undecane. The experimental AIT of n-undecane was $198^{circ}C$. The estimated lower and upper explosion limit by using measured lower flash point $59^{circ}C$ and upper flash point $83^{circ}C$ for n-undecane were 0.65 Vol.% and 2.12 Vol.%.
Key Words: n-Undecane, Flash point, Explosion limit, Fire point, Autoignition temperature (AIT)

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