Macroscopic spray characteristics of long-chain alcohol-biodiesel fuels in a constant volume chamber

作者：Li, Fengyu; Yi, Bolun; Song, Lanbo; Fu, Wei; Liu, Tao; Hu, Hongwei; Lin, Qizhao^*

来源：Proceedings of the Institution of Mechanical Engineers - Part A: Journal of Power and Energy , 2018, 232(2): 195-207.

DOI：10.1177/0957650917721336

• Macroscopic spray characteristics
• n-butanol
• n-pentanol
• biodiesel
• modified model

In this research, three basic macroscopic spray characteristics (spray tip penetration, spray cone angle, and spray area) of long-chain alcohol-biodiesel blends were studied to investigate the differences of macroscopic spray characteristics of long-chain alcohol-biodiesel blends with different mixing ratios and to further investigate the effects of blending long-chain alcohols into biodiesel on the spray characteristics. Two kinds of long-chain alcohols, n-butanol, and n-pentanol, were selected to study effects of difference kinds of long-chain alcohols on macroscopic spray characteristics of long-chain alcohol-biodiesel blends. Results show that with the increase of proportion of n-butanol or n-pentanol in blends, spray tip penetration decreased while spray cone angle and spray area increased; in terms of the effects brought by different long-chain alcohols, n-pentanol-biodiesel blends showed slightly longer spray tip penetration, smaller spray cone angle and smaller spray area compared to n-butanol-biodiesel blends in the same mixing ratios, and the difference trends between those two kinds blends could easily be opposite due to the very similar properties of n-butanol and n-pentanol. Furthermore, a modified spray tip penetration model was proposed based on previous model and showed good agreement with experimental results.

• 出版日期2018-3
• 单位中国科学技术大学