本文選題：油氣 + 熱著火　； 參考：《燃燒科學(xué)與技術(shù)》2015年01期

【摘要】：油氣熱著火是導(dǎo)致油氣火災(zāi)的重要原因之一,對油氣熱著火發(fā)生的反應(yīng)機(jī)理研究具有重要的理論和現(xiàn)實(shí)意義.通過對正庚烷、異辛烷和C1~C4詳細(xì)反應(yīng)機(jī)理的模擬研究,得到3個(gè)主要結(jié)果:一是通過溫度敏感性分析、路徑分析等方法,獲得了油氣熱著火簡化機(jī)理,包含47個(gè)組分,100個(gè)基元反應(yīng);二是通過對簡化機(jī)理的模擬分析發(fā)現(xiàn),隨著初始溫度的增加,熱著火的延遲時(shí)間減少,當(dāng)初始溫度小于850,K時(shí),延遲時(shí)間較長,而初始溫度大于900,K后,延遲時(shí)間相差不多;三是在相同溫度和碳?xì)錆舛认?組分濃度越均勻,延遲期越短,大分子濃度越大,延遲期越長,反應(yīng)后溫度越低,小分子濃度越大,反應(yīng)越充分.
[Abstract]:Thermal ignition of oil and gas is one of the important causes of oil and gas fire. It is of great theoretical and practical significance to study the reaction mechanism of thermal ignition of oil and gas.By simulating the reaction mechanism of n-heptane, isooctane and C1~C4, three main results are obtained: first, the simplified mechanism of hydrocarbon thermal ignition is obtained by temperature sensitivity analysis and path analysis.It contains 47 components and 100 elementary reactions. Secondly, the simulation analysis of the simplified mechanism shows that the delay time of thermal ignition decreases with the increase of initial temperature, and the delay time is longer when the initial temperature is less than 850 鈩，

本文編號：1752425