一种新型生物柴油替代燃料模型

A New Surrogate Fuels Model for Biodiesel

为了分析实际生物柴油的燃烧特性,综合考虑了燃料的分子量、碳氢比、化学键能和十六烷值等特性,基于丁酸甲酯、醋酸乙酯、癸酸甲酯与正十二烷四种燃料,采用配平原子个数和十六烷值的方法构建了反映生物柴油基本燃烧特性的一种新的替代燃料模型。通过不同工况下模拟结果与实验数据的比较,对该方法的合理性进行了验证,结果表明该替代燃料模型能较好地预测生物柴油在不同压力、温度和当量比下的氧化过程。该机理构成方法为替代燃料机理的构建提供了新的思路。

In order to analyze the combustion characteristics of biodiesel,a novel chemistry of biodiesel surrogate fuels has been built by matching the atom numbers and cetane number.Based on methyl butyrate,ethyl ethanoate,methyl decanoate and n-dodecane,the characteristics including molecular weight,hydrocarbon ratio,chemical bonds energy and cetane number have been considered for building the chemistry of the surrogate fuel.The simulation results of the combustion process using this chemistry are compared with the experimental data in different pressures,temperatures and equivalent ratios to verify the accuracy and reliability of the chemistry.This new ideal can be used to construct the surrogate fuel mechanisms of different real complex fuels.