燃烧和反应

Evaluation of Auto-Ignition Characteristics of Diesel Surrogate Fuels with the Same Derived Cetane Numbers at Changed Thermodynamic Environments

  • ZHANG Cong ,
  • GUAN Yuanhang ,
  • HUANG Zhen ,
  • HAN Dong
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  • 1. Key Laboratory for Power Machinery and Engineering, Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China
    2. College of Smart Energy, Shanghai Jiao Tong University, Shanghai 200240, China
    3. Shanghai Non-carbon Energy Conversion and Utilization Institute, Shanghai 200240, China

网络出版日期: 2024-07-15

基金资助

This research work is supported by the National Natural Science Foundation of China (Grant No. 52022058) and the Shanghai Science and Technology Committee (Grant No. 19160745400).

版权

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2024

Evaluation of Auto-Ignition Characteristics of Diesel Surrogate Fuels with the Same Derived Cetane Numbers at Changed Thermodynamic Environments

  • ZHANG Cong ,
  • GUAN Yuanhang ,
  • HUANG Zhen ,
  • HAN Dong
Expand
  • 1. Key Laboratory for Power Machinery and Engineering, Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China
    2. College of Smart Energy, Shanghai Jiao Tong University, Shanghai 200240, China
    3. Shanghai Non-carbon Energy Conversion and Utilization Institute, Shanghai 200240, China

Online published: 2024-07-15

Supported by

This research work is supported by the National Natural Science Foundation of China (Grant No. 52022058) and the Shanghai Science and Technology Committee (Grant No. 19160745400).

Copyright

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2024

摘要

柴油类燃料的着火特性对环境条件和自身性质有很高的敏感性。本研究在不同的热力学和氧化环境下,对具有相同十六烷值的不同柴油类燃料的着火特性进行了测量和比较。对测试燃料的燃烧压力、放热率、着火延迟和燃烧延迟进行了对比分析。结果表明,具有相同衍生十六烷值的柴油类燃料在衍生十六烷值的标准测试工况下具有相近的着火倾向。此外,在高衍生十六烷值、高环境温度和氧气浓度充足的工况下,具有相同衍生十六烷值的柴油类燃料的着火性能是相似的,以衍生十六烷值作为燃料着火评价指标是合适的。然而,在低十六烷值、低环境温度和低氧气浓度的工况下,具有相同衍生十六烷值的柴油类燃料着火性能存在差异,因此在这些条件下用衍生十六烷值作为燃料着火倾向的评价指标可能会导致更高的不确定性。

本文引用格式

ZHANG Cong , GUAN Yuanhang , HUANG Zhen , HAN Dong . Evaluation of Auto-Ignition Characteristics of Diesel Surrogate Fuels with the Same Derived Cetane Numbers at Changed Thermodynamic Environments[J]. 热科学学报, 2024 , 33(4) : 1590 -1606 . DOI: 10.1007/s11630-024-1913-4

Abstract

The ignition tendency of diesel fuels is highly sensitive to ambient conditions and fuel properties. In this study, the ignition characteristics of different diesel surrogate fuels with the same derived cetane numbers (DCN) were measured and compared in varied thermodynamic and oxidizing environments. The combustion pressures, heat release rates, ignition delays, and combustion delays of the test fuels were compared. The experimental results showed that the diesel surrogate fuels with the same DCNs exhibit similar ignition propensity at standard DCN test conditions. Further, for the test conditions of high cetane fuels, high ambient temperatures, and sufficient oxygen concentrations, surrogate fuels with the same DCN have similar ignition behaviors, and using the DCN to evaluate fuel ignition tendency is appropriate. However, for the test conditions of low cetane fuels, low ambient temperatures, and reduced oxygen concentrations, different ignition behaviors are observed for the surrogate fuels with the same DCN, so at these conditions using DCN as the evaluation index for fuel ignition tendency may lead to higher uncertainty.

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