DEVELOPMENT OF AN IMPROVED MULTI-COMPONENT VAPORIZATION MODEL FOR APPLICATION IN OXYGEN-ENRICHED AND EGR CONDITIONS

被引：8
|
作者：
Yi, Ping [1 ]
Feng, Liyan [1 ]
Jia, Ming [1 ]
Long, Wuqiang [1 ]
Tian, Jiangping [1 ]
机构：
[1] Dalian Univ Technol, Sch Energy & Power Engn, Dalian 116024, Peoples R China
来源：
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS | 2014年 / 66卷 / 08期
基金：
中国国家自然科学基金;
关键词：
EXHAUST-GAS RECIRCULATION; FUEL DROPLET; NUMERICAL-SIMULATION; EVAPORATION MODEL; MASS-TRANSFER; AMBIENT TURBULENCE; DIESEL; PRESSURE; COMBUSTION; LIQUID;
D O I：
10.1080/10407782.2014.892395
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
An improved multi-component vaporization model was developed and applied to predict the vaporization characteristics of a fuel droplet under oxygen-enriched and exhaust gas recirculation (EGR) conditions in this study. The model was constructed including an improved enthalpy diffusion sub-model, a corrected Stefan flow velocity, and temporal variation of thermal physical properties. The computational results were validated with the experimental data and satisfactory agreements between the predictions and measurements can be achieved. The effects of O-2, CO2 concentration, and EGR on the vaporization rate of fuel droplet in various ambient temperature and pressure conditions were investigated.
引用
收藏
页码：904 / 927
页数：24
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