航空煤油乙醇混合燃料荷电喷雾特性研究
摘要：摘要研究了航空煤油/乙醇混合燃料E0、E10、E30、E50的荷电雾化模式及特性,考察乙醇掺混比例、燃料流量、喷嘴孔径对荷电雾化特性的影响。结果表明,在0 ~ 10 kV荷电电压范围,E0燃料主要呈单一模式——液滴模式。随着荷电电压的增加,E0燃料由液滴形状转变为纺锤形状;E10、E30、E50燃料均先后出现液滴、脉冲射流、锥射流、偏射流、多股锥射流模式,其中液滴模式由液滴形状变为微液滴形状。随着乙醇掺混比例的增加,E10、E30、E50的雾化模式转变所需的临界电压逐渐减小,雾化锥角逐渐增大。随着燃料流量的增加,荷电雾化锥角逐渐增大,雾化模式转变的临界电压逐渐增加。喷嘴直径从1.05 mm减小为0.30 mm,荷电雾化锥角变化不明显。
Abstract:：In this paper, the charge atomization patterns and characteristics of aviation kerosene/ethanol blended fuels E0, E10, E30, and E50 were investigated, and the effects of ethanol blending ratio, fuel flow rate, and nozzle orifice diameter on the charge atomization characteristics were examined. The results showed that in the charge voltage range of 0-10 kV, the E0 fuel was mainly in a single mode—droplet mode. With the increase of charging voltage, the E0 fuel changed from droplet shape to spindle shape; the E10, E30, and E50 fuels all successively appeared in the droplet, pulse jet, cone jet, deflected jet, and multi-stranded cone jet modes, in which the droplet mode changed from droplet shape to micro-droplet shape. With the increase in ethanol blending ratio, the critical voltage required for the transition of atomization modes of E10, E30, and E50 gradually decreased, and the atomization cone angle gradually increased. With the increase of fuel flow rate, the charge atomization cone angle gradually increased, and the critical voltage for atomization mode shift gradually increased. The charged atomization cone angle did not change significantly when the nozzle diameter decreased from 1.05 mm to 0.30 mm.
中文标题：航空煤油乙醇混合燃料荷电喷雾特性研究
英文标题：Study on Charged Spray Characteristics of Aviation Kerosene/Ethanol Blended Fuel
发表时间：2023-09-08
作者：
邵翔, 侯军兴, 胡文帅, 吴凯
作者简介：
邵 翔（1996-）,男,硕士研究生,主要从事燃油荷电雾化与燃烧研究。侯军兴（1977-）,男,博士,教授,硕士生导师,主要从事发动机清洁燃烧研究。
关键词：荷电喷雾,航空煤油,乙醇,雾化模式,雾化锥角,
Key words：charge spray,aviation kerosene,ethanol,atomization pattern,atomization cone angle,
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