Experimental Study of Explosion Properties of Flammable Organic Vapors in Nitrous Oxide Atmosphere
This paper focuses on differences in explosion characteristics of volatile organic vapors between nitrous oxide (N2O) and oxygen. Flammable mixtures containing N2O (n-Pentane, Diethyl ether, or Diethylamine/N2O/N2) and mixtures containing O2 (nPentane, Diethyl ether, or Diethylamine/O2/N2) were characterized using four parameters: upper and lower explosion limits, peak explosion pressure, and time to the peak explosion pressure. All explosion experiments were conducted in a cylindrical explosion vessel at atmospheric pressure and room temperature by measuring their explosion pressures. The experiments confirm that the explosion range of each mixture containing N2O is narrow compared to that of the corresponding mixtures containing O2. Comparisons of their explosion pressures show that the maximum peak pressure of the mixture containing N2O is high compared to that of the mixture containing O2. Furthermore, our measurements reveal that the maximum peak pressures of the mixtures containing N2O are observed at stoichiometry; in contrast, those of the mixtures containing O2 are found in the fuel-rich conditions. Chemical equilibrium calculations were carried out to make clear the behavior. The results reveal that: (1) mole fractions of N2O are extremely low at any stoichiometric ratio; and (2) the mixtures containing N2O tend to undergo complete combustion compared to the mixtures containing O2.
nitrous oxide organic vapor explosion limit explosion pressure
KOSHIBA Yusuke TAKIGAWA Tomihisa MATSUOKA Yusaku OHTANI Hideo
Division of Materials Science and Chemical Engineering, Yokohama National University, Yokohama, Kana Graduate School of Environment and Information Sciences, Yokohama National University, Yokohama, Kan
国际会议
The 2010 International Symposium on Safety Science and Technology(2010 安全科学与技术国际会议)
杭州
英文
981-986
2010-10-26（万方平台首次上网日期，不代表论文的发表时间）