论文部分内容阅读
二元燃料燃烧技术作为一种应用替代能源的技术已经被广泛应用,为了深入地理解天然气、液化石油气和醇类等被引燃燃料对柴油低温着火的推迟影响,本文对二元燃料低温着火过程进行了模拟研究。结果表明,在初始温度小于1000 K时,被引燃燃料推迟正庚烷着火的能力由高到低的顺序为:乙烷>丙烷>正丁烷>正戊烷>正己烷,从正戊烷开始,被引燃燃料对正庚烷着火的抑制作用开始消失。甲醇和乙醇几乎没有低温反应活性,它们将活泼的OH转化为了稳定的H_2O_2;醛类和烯醇的生成反应是醇类燃料推迟正庚烷着火能力强于对应烷烃燃料的原因。
Binary fuel combustion technology as an alternative energy technology has been widely used, in order to gain a deeper understanding of natural gas, liquefied petroleum gas and alcohol-based ignition of the fuel on the postponement of low-temperature ignition of diesel, this paper on the dual-fuel low temperature ignition The process was simulated. The results show that the ability of ignited fuel to postpone n-heptane ignition from high to low is: ethane> propane> n-butane> n-pentane> n-hexane at initial temperature less than 1000 K, Initially, the suppression of ignition of n-heptane by the ignited fuel began to disappear. Methanol and ethanol have almost no low temperature reactivity, they will lively OH into a stable H_2O_2; aldehydes and enol formation reaction is the alcohol fuel postpone n-heptane fire better than the corresponding alkane fuel reasons.