Influences of C5 esters addition on anti-knock and auto-ignition tendency of a gasoline surrogate fuel
Influences of C5 esters addition on anti-knock and auto-ignition tendency of a gasoline surrogate fuel
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C5酯添加对汽油替代燃料抗爆性和自燃倾向的影响
DOI：
10.1177/14680874211030898
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发表时间：
2021-07
影响因子：
2.5
通讯作者：
Dong Han
中科院分区：
文献类型：
--
作者：
Xin Liang;Yaozong Duan;Yunchu Fan;Zhen Huang;Dong Han
在与三个C5酯，γ-谷乳（GVL），甲基丁烷酸盐（MB）和甲基甲基甲酸甲酯（MC）混合时，甲酸基本参考燃料（TPRF）的辛烷值数量和自动点击特征是在合作燃料研究（CFR）和稳定的元素上（CFCC）的，并将其用于稳定性（CFR）。完成1/3乙醇和2/3 GVL/MB/MC在摩尔的基础上。与观察到的类似反应性不同在RON测试中的混合物和GVL混合物，MC混合物暴露于比GVL混合物更高的自动点击诺言，这可能是因为GVL的分散焓较高，最终与更明显的冷却效果相比，与此研究相似的MB均与MC相似的文献相比，与MC相似。
The research octane numbers and auto-ignition characteristics of a toluene primary reference fuel (TPRF), when blended with three C5 esters, γ-valerolactone (GVL), methyl butanoate (MB), and methyl crotonate (MC), were investigated on a cooperative fuel research (CFR) engine and a constant volume combustion chamber (CVCC). In fuel preparation, ethanol was used to improve the miscibility, and the total additive comprised 1/3 ethanol and 2/3 GVL/MB/MC on a molar basis. The experimental results first reveal that the addition of the three series of additives boost fuel octane rating, and their boosting effects rank as MB > GVL ∼ MC when fuels are blended on a molar basis. In contrast, the auto-ignition tendency of the three series of fuel blends, when blended on the molar basis, ranks as the MC blends > the GVL blends> the MB blends. Different from the similar reactivities observed for the MC blends and the GVL blends in the RON tests, the MC blends exhibit higher auto-ignition propensity than the GVL blends, probably because the higher enthalpy of vaporization of GVL causes a more significant cooling effect. Finally, different from the literature studies that reported similar reactivities for pure MB and MC, in this study MB shows lower reactivity than MC when blending with the TPRF gasoline surrogate.
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