荷电改善燃油雾化的实验研究

Experimental research on improving atomization quality of liquid fuel by charging

将静电技术应用于燃油喷雾燃烧 ,目的是研制一种全新的燃油燃烧技术——荷电喷雾燃烧 ;对这一燃烧方式进行冷态荷电喷雾实验研究 ,在实验研究过程中研制了燃油荷电装置、荷质比测定装置和燃油雾滴的捕集液 ,准确地进行了荷质比、雾滴粒径的测量 ;并首次将 PIV技术应用于荷电喷雾的实验研究。实验研究结果表明 :在相同条件下 ,燃油荷电后将使雾滴粒径有较大幅度的降低 ,喷雾流场变得均匀、松散 ,贯穿距减小。

A new kind of combustion technology-electrostatic spray combustion is developed by applying electrostatic spray to fuel combustion.In this paper, a charging device of liquid fuel is developed.The electrostatic spraying characteristics of fuel are experimentally investigated firstly by PIV. The droplet size and the charge to mass ratio are measured by developed device of particle charge to mass ratio and reagent of catching fuel droplets. The experimental results show that the droplet size of electrostatic spray decreases by a big margin, the spray fields become well distributed and scattered, and the penetration distance of spray becomes short.