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燃烧化学动力学
相关语句
  “燃烧化学动力学”译为未确定词的双语例句
     Chemical Kinetic Study of Ghee Isothermal Combustion
     酥油等温燃烧化学动力学研究
短句来源
     Combustion kinetics appears as the significant factor in a study on the effect of vitiation.
     燃烧化学动力学显然是污染影响中的一个重要因素.
短句来源
     Most reports on engine emissions with dual fuel of Hydrogen and Gasoline were focused onlyon the experimental data,Lacking in study of emission formation mechanism. In this paper,the variations in CO、HC and NOx,when Hydrogen added to the Gasoline-airmixfure engine,were illustrated based on chemical kinetics.
     有关氢/汽油双燃料发动机排放特性研究的文献,均着重于叙述排放量的实测数据,而忽略从有害排放生成机理观点来解释排放量的差别.本文试图从燃烧化学动力学原理阐明汽油-空气混合气中添加氢气后,CO、HC、NOx排放量的变化.
短句来源
  相似匹配句对
     Chemical Kinetic Study of Ghee Isothermal Combustion
     酥油等温燃烧化学动力学研究
短句来源
     COMBUSTION CHEMISTRY OF SHS
     SHS燃烧化学
短句来源
     CHEMICAL KINETICS ANALYSIS OF THE EFFECT OF VITIATED AIR ON COMBUSTION OF H_2
     污染对氢-空气燃烧影响的化学动力学分析
短句来源
     The Kinetic Study of Chemical Coppering
     化学镀铜的动力学研究
短句来源
     CHEMICAL KINETICS OF NITRENDIPINE SYNTHESIS
     尼群地平合成的化学动力学
短句来源
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Quantitative analysis have been conducted which show the effects of H2O, O, H, OH, NO on the finite-rate chemical kinetics of premixed hydrogen and air. Calculations were made over the pressure range of 0.02 to 0.2 MPa, over the temperatures range of 910 to 2000K, and at the hydrogen-air mixture equivalence ratio of 1.0. The finite-rate chemistry model includes 38 reactions among 13 species of the H2-O2-N2 system. The reactions contained in the mechanism reflect the current state of knowledge of the chemistry...

Quantitative analysis have been conducted which show the effects of H2O, O, H, OH, NO on the finite-rate chemical kinetics of premixed hydrogen and air. Calculations were made over the pressure range of 0.02 to 0.2 MPa, over the temperatures range of 910 to 2000K, and at the hydrogen-air mixture equivalence ratio of 1.0. The finite-rate chemistry model includes 38 reactions among 13 species of the H2-O2-N2 system. The reactions contained in the mechanism reflect the current state of knowledge of the chemistry of the hydrogen-air system. The results indicate that the presence of H2, NO, O, H and OH can have significant effect on ignition time within certain mixture temperature. The reaction times is not affected by the initial amounts offree radicals, but is dominantly influenced by the H2O. This study deals with the effect of vitiated air contamination on combustion and scramjet engine ground tests. Combustion kinetics appears as the significant factor in a study on the effect of vitiation.

本文作了H_2O、O、H、OH和NO对氢-空气燃烧影响的化学动力学计算.计算范围是:压力0.02~0.2MPa,初始温度:910~2000K,当量油气比为1.0.有限速率化学反应模型包括38个反应式和13种组分的H_2-O_2-N_2系统,模型反应了氢-空气化学反应的当前最新研究成果.计算结果表明,在某些温度范围内,H_2O、O、H、OH和NO对着火时间有很大影响.反应时间并不受初始成份中自由原子和基的影响,但是初始成份中含有H_2O,将缩短反应时间.本研究关系到污染对燃烧的影响以及对于超音速燃烧冲压发动机地面试验的影响.燃烧化学动力学显然是污染影响中的一个重要因素.

Most reports on engine emissions with dual fuel of Hydrogen and Gasoline were focused onlyon the experimental data,Lacking in study of emission formation mechanism.In this paper,the variations in CO、HC and NOx,when Hydrogen added to the Gasoline-airmixfure engine,were illustrated based on chemical kinetics.

有关氢/汽油双燃料发动机排放特性研究的文献,均着重于叙述排放量的实测数据,而忽略从有害排放生成机理观点来解释排放量的差别.本文试图从燃烧化学动力学原理阐明汽油-空气混合气中添加氢气后,CO、HC、NOx排放量的变化.

The combustion events of a swirl chamber diesel engine in distinct place and distinct stage are processed differently.The combustion in the swirl chamber is broken into five phases:low temperature ignition kinetics,transition to high temperature chemical kinetics,high temperature premixed burn kinetics and flamelet diffusion burn.While the burn in the main chamber is considered as flamelet diffusion combustion.The shell ignition model,global Arrhenius...

The combustion events of a swirl chamber diesel engine in distinct place and distinct stage are processed differently.The combustion in the swirl chamber is broken into five phases:low temperature ignition kinetics,transition to high temperature chemical kinetics,high temperature premixed burn kinetics and flamelet diffusion burn.While the burn in the main chamber is considered as flamelet diffusion combustion.The shell ignition model,global Arrhenius equation and coherent flamelet model are used to model low temperature ignition,high temperature premixed burn and diffusion burn respectively to develop the quasi dimensional combustion model.The pressure and the heat release rate predicted by model are coincided with the results derived from experiment.The effects of the stretch parameter and the destruction parameter on the pressure are also studied.

把涡流室式柴油机不同区域与不同时期的燃烧过程分开处理,将涡流室的燃烧过程分为5个时期,即:低温着火化学动力学反应期,向高温预混燃烧化学动力学反应过渡期,高温预混燃烧化学动力学反应期,向空气和燃料混合控制的扩散燃烧过渡期和火焰微元的扩散燃烧期。而主燃烧室的燃烧只有火焰微元的扩散燃烧期。用Shel着火模型、Arhenius方程和相关火焰微元模型来分别模拟其中的低温着火、高温预混燃烧和扩散燃烧过程以建立准维燃烧模型。模型预测的示功图和燃烧放热率与实验值吻合良好。本文还研究了模型中拉伸因子和耗散因子对示功图的影响。

 
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