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首页> 外文期刊>Combustion and Flame >Experimental and modeling validation of a large diesel surrogate: Autoignition in heated rapid compression machine and oxidation in flow reactor
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Experimental and modeling validation of a large diesel surrogate: Autoignition in heated rapid compression machine and oxidation in flow reactor

机译：大型柴油替代品的实验和模型验证：加热的快速压缩机中的自燃和流动反应器中的氧化

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摘要

Autoignition and oxidation characteristics of a three-component diesel surrogate fuel were studied in a heated rapid compression machine (RCM) and a flow reactor (FR) over a wide range of conditions. The surrogate components, n-cetane, 2,2,4,4,6,8,8-heptamethylnonane (HMN), and 1-methylnaphthalene (1-MN), all fall within the C10-C20 range of real diesel fuel. The RCM-measured ignition delay times (IDTs) and FR oxidation data of the surrogate fuel were then compared with those of the target diesel. It is found that the diesel surrogate fuel is in good agreement with the target diesel in total ignition delay time and FR speciation data over the whole temperature range, reflecting the success of the surrogate fuel construction. A semi-detailed kinetic model was used to predict the autoignition and oxidation behavior of the surrogate fuel in RCM and FR experiments. Results show that the kinetic model captures well the measured total IDTs and the mole fractions of O-2, H-2, CO2, and small hydrocarbons under all investigated conditions. To deepen the understanding of low-temperature reaction scheme, rate of production (ROP) analysis of OH and HO2 radicals was carried out during the first-stage ignition to explore the causes of low-temperature and negative temperature coefficient (NTC) reactivity. A brute force sensitivity analysis of first-stage ignition delay time was also conducted to further identify the controlling reactions in the first-stage ignition of the surrogate fuel. (C) 2019 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
机译：在加热的快速压缩机（RCM）和流动反应器（FR）的广泛条件下研究了三组分柴油替代燃料的自燃和氧化特性。替代组分正十六烷，2,2,4,4,6,8,8-庚甲基壬烷（HMN）和1-甲基萘（1-MN）均在真实柴油的C10-C20范围内。然后将RCM测量的替代燃料的点火延迟时间（IDT）和FR氧化数据与目标柴油的数据进行比较。发现在整个温度范围内，总替代延迟时间和FR形态数据中，柴油替代燃料与目标柴油非常吻合，这反映了替代燃料构建的成功。在RCM和FR实验中，使用半详细动力学模型来预测替代燃料的自燃和氧化行为。结果表明，在所有研究条件下，动力学模型都能很好地捕获所测得的总IDT和O-2，H-2，CO2和小烃的摩尔分数。为了加深对低温反应方案的理解，在第一步点火过程中进行了OH和HO2自由基的生成率（ROP）分析，以探讨低温和负温度系数（NTC）反应性的原因。还对第一阶段点火延迟时间进行了蛮力敏感性分析，以进一步确定替代燃料在第一阶段点火中的控制反应。 （C）2019燃烧研究所。由Elsevier Inc.出版。保留所有权利。

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  • 来源
    《Combustion and Flame》 |2019年第4期|195-207|共13页
  • 作者

    Yu Liang; Mao Yebing; Li Ang; Wang Sixu; Qiu Yue; Qian Yong; Han Dong; Zhu Lei; Lu Xingcai;

  • 作者单位

    Shanghai Jiao Tong Univ, Sch Mech Engn, Key Lab Power Machinery & Engn MOE, 800 Dongchuan Rd, Shanghai 200240, Peoples R China;

    Shanghai Jiao Tong Univ, Sch Mech Engn, Key Lab Power Machinery & Engn MOE, 800 Dongchuan Rd, Shanghai 200240, Peoples R China;

    Shanghai Jiao Tong Univ, Sch Mech Engn, Key Lab Power Machinery & Engn MOE, 800 Dongchuan Rd, Shanghai 200240, Peoples R China;

    Shanghai Jiao Tong Univ, Sch Mech Engn, Key Lab Power Machinery & Engn MOE, 800 Dongchuan Rd, Shanghai 200240, Peoples R China;

    Shanghai Jiao Tong Univ, Sch Mech Engn, Key Lab Power Machinery & Engn MOE, 800 Dongchuan Rd, Shanghai 200240, Peoples R China;

    Shanghai Jiao Tong Univ, Sch Mech Engn, Key Lab Power Machinery & Engn MOE, 800 Dongchuan Rd, Shanghai 200240, Peoples R China;

    Shanghai Jiao Tong Univ, Sch Mech Engn, Key Lab Power Machinery & Engn MOE, 800 Dongchuan Rd, Shanghai 200240, Peoples R China;

    Shanghai Jiao Tong Univ, Sch Mech Engn, Key Lab Power Machinery & Engn MOE, 800 Dongchuan Rd, Shanghai 200240, Peoples R China;

    Shanghai Jiao Tong Univ, Sch Mech Engn, Key Lab Power Machinery & Engn MOE, 800 Dongchuan Rd, Shanghai 200240, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Diesel surrogate fuel; Ignition delay time; Rapid compression machine; Flow reactor; Kinetic model;

    机译：柴油替代燃料;点火延迟时间;快速压缩机;流动堆;运动学模型;

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