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首页> 外文会议>SAE International Powertrains, Fuels and Lubricants Meeting >Experimental and Kinetic Analyses of Thermochemical Fuel Reforming (TFR) with Alcohol Enrichment in Plug Flow Reactor: a Verification of In-Cylinder TFR
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Experimental and Kinetic Analyses of Thermochemical Fuel Reforming (TFR) with Alcohol Enrichment in Plug Flow Reactor: a Verification of In-Cylinder TFR

机译：塞流反应器中醇富集的热化学燃料重整（TFR）的实验和动力学分析：缸内TFR验证

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摘要

In-cylinder thermochemical fuel reforming (TFR) in spark ignition natural gas engine was developed to reveal that thermochemical fuel reforming could increase H_2 and CO concentration in reformed gas, leading to an increase of thermal efficiency and engine performance. Moreover, ethanol enrichment has been proved to have great potential to optimize TFR performance. In order to explain TFR phenomenon chemically, methane oxidation experiments were conducted in a laminar flow reactor with addition of ethanol and methanol at equivalent ratios of 1.5, 1.7, 1.9 and 2.1 from 948K to 1098K at atmospheric pressure. Experimental results showed that methanol have great ability to facilitate the oxidation of methane than that of ethanol. Meanwhile, the degree of methane conversion became more significantly as the equivalent ratio increased. Kinetic analysis of oxidation of methane with alcohol enrichment in a plug flow model was also conducted in this study. There was good agreement between experimental and computational results. The oxidation of methanol or ethanol released plenty of radicals such as H, OH and HO_2, which further reacted with CH_4 more intensively in fuel rich condition. Rate of production and sensitivity analyses showed that methanol could produce more reactive radicals, which were involved in a series of initial oxidation reactions of methane. It indicated that methanol have great potential to improve in-cylinder TFR performance.
机译：Spark点火天然气发动机中的缸内热化学燃料改造（TFR）揭示了热化学燃料重整可以增加重整气体中的H_2和CO浓度，从而提高热效率和发动机性能。此外，已被证明乙醇富集具有优化TFR性能的巨大潜力。为了在化学上解释TFR现象，在大气压下在1.5,1.7,1.9和2.1的当量比在1.5,1.7,1.9和2.1的当量比中加入乙醇和甲醇，在层流反应器中在层流反应器中进行甲烷氧化实验。实验结果表明，甲醇具有促进甲烷氧化的能力高于乙醇的能力。同时，随着等同比增加，甲烷转化程度变得更加显着。在本研究中还进行了溶液富含醇富集的甲烷氧化的动力学分析。实验和计算结果之间存在良好的一致性。甲醇或乙醇的氧化释放了大量的基团，例如H，OH和HO_2，其进一步与CH_4更强烈地反应富含燃料的条件。生产率和敏感性分析表明，甲醇可以产生更多的活性自由基，其参与甲烷的一系列初始氧化反应。它表明甲醇具有改善缸内TFR性能的巨大潜力。

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