A multi-component surrogate of commercial diesel for trans-critical and supercritical injections study
A multi-component surrogate of commercial diesel for trans-critical and supercritical injections study
复制标题
用于跨临界和超临界喷射研究的商用柴油的多组分替代品
DOI：
10.1016/j.fuel.2019.01.162
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发表时间：
2019-05
期刊：
影响因子：
7.4
通讯作者：
Lu Xingcai
中科院分区：
文献类型：
--
作者：
Huang Zhong;Zhang Wenzheng;Xia Jin;Ju Dehao;Lu Xingcai
超临界柴油燃烧的概念有望提高发动机的效率，减少有害气体的排放。对柴油跨临界和超临界喷射的研究是理解这一新的柴油燃烧概念的基础。为了数值研究商用柴油的反/超临界喷射特性，对实际商用柴油的临界温度进行了实验测量，验证了多组分混合气临界点的计算方法。采用基于模型的代剂配方方法，研制了一种六组分的商用柴油代剂。将六组分替代物的预测性能与实际商用柴油的实测数据进行了比较。结果表明，该替代物可以模拟许多与温度无关的性质（十六烷数、较低热值、临界温度和蒸馏温度）和与温度有关的性质（密度、粘度、表面张力和导热系数），偏差极小。这些特性对商用柴油的亚/反/超临界注入有重要影响。此外，利用连续欧拉方法对柴油机跨临界喷射过程进行了模拟。预测的液体和蒸汽穿透量与实测值吻合良好。
The supercritical diesel combustion concept is expected to increase the engine efficiency and reduce the harmful emissions. The investigations of diesel trans-critical and supercritical injections are the basis to understand this new diesel combustion concept. In order to numerically study the trans/supercritical injection characteristics of commercial diesel, the critical temperature of real commercial diesel was experimentally measured and the method to calculate the critical point of multi-component mixture was verified. A six-component surrogate of commercial diesel was formulated by a model-based surrogate formulation method. The comparisons between the predicted properties of six-component surrogate and the measured data of real commercial diesel were conducted. The results show that the surrogate can emulate many temperature-independent properties (cetane number, lower heating value, critical temperature and distillation temperature) and the temperature-dependent properties (density, viscosity, surface tension and thermal conductivity) with extreme small deviation. These properties have significant effect on sub/trans/supercritical injections of the commercial diesel. In addition, the surrogate was applied to simulate the diesel trans-critical injection with the continuous Euler method. The predicted liquid and vapor penetration have excellent agreement with the measured values.
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DOI：
--
发表时间：
2011
期刊：
--
影响因子：
--
作者：
Ronghong Lin
通讯作者：
Ronghong Lin
影响因子：
11.2
作者：
Yong Qian;Zhiyong Wu;Jinjing Guo;Zilong Li;Chenxu Jiang;Xingcai Lu
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Yong Qian;Zhiyong Wu;Jinjing Guo;Zilong Li;Chenxu Jiang;Xingcai Lu
DOI：
10.2172/1345058
发表时间：
2014-08
期刊：
--
影响因子：
--
作者：
Janet Yanowitz;M. Ratcliff;R. McCormick;Joshua D. Taylor;M. J. Murphy
通讯作者：
Janet Yanowitz;M. Ratcliff;R. McCormick;Joshua D. Taylor;M. J. Murphy
影响因子：
2.5
作者：
M. Wensing;T. Vogel;Gudrun Götz
通讯作者：
M. Wensing;T. Vogel;Gudrun Götz
DOI：
10.1021/j100844a035
发表时间：
1969-10
期刊：
The Journal of Physical Chemistry
影响因子：
--
作者：
A. Kreglewski;W. Kay
通讯作者：
A. Kreglewski;W. Kay