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An experimental study of n-dodecane and the development of an improved kinetic model

机译：N-十二烷的实验研究与改进动力学模型的发展

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摘要

This work presents new fundamental combustion experimental datasets and propose an improved kinetic model for n-dodecane, a widely used surrogate component for jet fuels and diesel. In the experiments, ignition delay times for n-dodecane, were measured over low-to-high temperature range by combining a heated rapid compression machine (RCM) and a heated shock tube (ST). The measurements cover a wide range of temperatures (621-1320 K), pressures (8, 15 bar) and equivalence ratios (0.5-1.5). Flow reactor oxidation was also carried out over temperature range of 600-1100 K and at equivalence ratios of 0.5, 1.0 and 1.5 under atmospheric pressure to provide species evolution profiles of O-2, CO, CO2 CH4, C2H4 etc. These datasets were used to develop a mechanism for n-dodecane. New rate coefficients were adopted from recent literature to improve the performance of the model, leading to a model composed of 737 species and 3629 reactions. The present experimental data, as well as a wide range of datasets in literature, were used to evaluate the performance of the model. An overall good agreement of the predictions with the experimental results was observed. This model is anticipated to facilitate the development of kinetic models for jet fuel surrogate. (C) 2019 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
机译：这项工作介绍了新的基本燃烧实验数据集，并提出了一种改进的N-十二烷的动力学模型，广泛使用的喷射燃料和柴油的替代组件。在实验中，通过将加热的快速压缩机（RCM）和加热的冲击管（ST）组合，在低至高温范围内测量N-十二烷的点火延迟时间。测量涵盖各种温度（621-1320 k），压力（8,15巴）和等效比率（0.5-1.5）。流动反应器氧化也在大气压下在600-1100k和0.5,1.0和1.5的等效比中进行的，以提供O-2，CO，CO 2 CH4，C2H4等物种演化曲线。使用这些数据集制定N-Dodecane的机制。最近的文献采用了新的速率系数，以提高模型的性能，导致由737种和3629个反应组成的模型。目前的实验数据以及文献中的广泛数据集用于评估模型的性能。观察到通过实验结果的预测的整体吻合。预计该模型将促进喷射燃料代理的动力学模型的开发。 （c）2019燃烧研究所。由elsevier Inc.出版的所有权利保留。

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  • 来源
    《Combustion and Flame》 |2020年第2期|388-402|共15页
  • 作者

    Mao Yebing; Raza Mohsin; Wu Zhiyong; Zhu Jizhen; Yu Liang; Wang Sixu; Zhu Lei; Lu Xingcai;

  • 作者单位

    Shanghai Jiao Tong Univ Key Lab Power Machinery & Engn MOE Shanghai 200240 Peoples R China;

    Shanghai Jiao Tong Univ Key Lab Power Machinery & Engn MOE Shanghai 200240 Peoples R China;

    Shanghai Jiao Tong Univ Key Lab Power Machinery & Engn MOE Shanghai 200240 Peoples R China;

    Shanghai Jiao Tong Univ Key Lab Power Machinery & Engn MOE Shanghai 200240 Peoples R China;

    Shanghai Jiao Tong Univ Key Lab Power Machinery & Engn MOE Shanghai 200240 Peoples R China;

    Shanghai Jiao Tong Univ Key Lab Power Machinery & Engn MOE Shanghai 200240 Peoples R China;

    Shanghai Jiao Tong Univ Key Lab Power Machinery & Engn MOE Shanghai 200240 Peoples R China;

    Shanghai Jiao Tong Univ Key Lab Power Machinery & Engn MOE 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

    N-dodecane; Ignition delay time; Shock tube; Rapid compression machine; Flow reactor; Kinetic model;

    机译：N-十二烷;点火延迟时间;冲击管;快速压缩机;流量反应器;动力学模型;

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