Measurement of Autoignition Temperature of n-Propanol and Formic acid System

Young-Se, Cho; Dong-Myeong, Ha

doi:2013.27.5.64

Fire Sci. Eng. > Volume 27(5); 2013 > Article

Fire Science and Engineering 2013;27(5):64-69.
DOI: https://doi.org/10.7731/KIFSE.2013.27.5.64 Published online October 31, 2013.

n-Propanol과 Formic acid계의 최소자연발화온도의 측정

조영세, 하동명

¹세명대학교 대학원 소방방재공학과
²세명대학교 보건안전공학과

Measurement of Autoignition Temperature of n-Propanol and Formic acid System

Cho Young-Se, Ha Dong-Myeong

¹Dept. of Fire and Disaster Prevention Engineering, Graduate School, Semyung University
²Dept. of Occupational Health and Safety Engineering, Semyung University

요약

가연성 혼합물의 최소자연발화온도는 가연성액체의 안전한 취급을 위해서 중요한 지표가 된다. 본 연구에서는 ASTM E659 장치를 이용하여 가연성 혼합물인 n-Propanol과 Formic acid 계의 최소자연발화온도와 발화지연시간을 측정하였다. 2성분계를 구성하는 순수물질인 n-Propanol과 Formic acid의 최소자연발화온도는 각 각 $435^{circ}C$와 $498^{circ}C$로 측정되었다. 그리고 측정된 n-Propanol과 Formic acid 계의 최소자연발화온도는 제시된 식에 의한 예측값과 작은 평균절대오차에서 일치하였다. 그리고 n-Propanol과 Formic acid 계는 일부 혼합 조성에서 두 개의 순수물질 가운데 낮은 AIT보다 낮게 측정된 최소자연발화온도거동(MAITB, Minimum Autoignition Temperature Behavior)을 보이고 있다.

Abstract

The autoignition temperatures (AITs) of solvent mixture was important index for the safe handling of flammable liquids which constitute the solvent mixtures. This study measured the AITs and ignition delay time for n-propanol and formic acid system by using ASTM E659 apparatus. The AITs of n-Propanol and Formic acid which constituted binary system were $435^{circ}C$ and $498^{circ}C$, respectively. The experimental AITs of n-propanol and formic acid system were a good agreement with the calculated AITs by the proposed equations with a few A.A.D. (average absolute deviation). And n- Propanol and formic acid system was shown the minimum autoignition temperature behavior (MAITB).

Key Words: Autoignition temperatures (AITs), Ignition delay time (time lag), ASTM E659, n-Propanol and Formic acid system, Minimum autoignition temperature behavior (MAITB)