Combustion Characteristics Of A Small-Sized Burner'S Single Diesel Droplet in Different Atmosphere Pressures

2018 3rd International Conference on Insulating Materials, Material Application and Electrical Engineering

材料科学;无线电电子学;电工学

Xie, Kai^1 ; Qiu, Xingqi^1 ; Cui, Yunjing^2

School of Chemical Engineering, China University of Petroleum, Qingdao, China^1

School of Mechatronic Engineering, China University of Petroleum, Qingdao, China^2

关键词: Atmosphere pressure;    Change mechanisms;    Combustion characteristics;    Combustion pro-cess;    Droplet combustion;    Environment pressure;    Low pressure environment;    Numerical simulation method;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/452/3/032062/pdf
DOI  :  10.1088/1757-899X/452/3/032062

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

On the plateau, atmospheric pressure is reduced, which effects diesel combustion feature prominently. Combustion process of diesel oil droplet under different environment pressure were calculated by theoretical programming and numerical simulation method. Considering droplet drag and air flow relative motion, burning time and motion path of diesel single droplet have been conducted by programming calculation. Burning regulation of different initial particle droplet size were received, including burning time, Droplet drag. The relationships between different atmospheric pressure and burning time or motion path are found respectively. Combining with the experiments of macroscopic scale flame, follow the micro level of droplet combustion, change Mechanism of macro flame shape in different sub-atmosphere were analysed. In the low-pressure environment, both burning time and burning path of diesel droplets are longer in sub-atmosphere environment.