生物质化学工程2025，Vol.59Issue(2)：15-22,8.DOI:10.3969/j.issn.1673-5854.2025.02.003
乙醇-油酸甲酯生物柴油蒸发特性研究
Evaporation Characteristics of Ethanol-methyl Oleate Biodiesel
摘要
Abstract
In order to explore the fundamental theories behind the evaporation process of ethanol-methyl oleate biodiesel blended fuel,a droplet evaporation experiment based on thermocouple hanging-drop technology was adopted.The evaporation and micro-explosion characteristics of ethanol and methyl oleate blended fuel were investigated under different fuel ratios and the addition of alumina oxide nanoparticles.The effects of ethanol addition amount of 0,20％,and 40％and the presence of nanoparticles on parameters such as the normalized square diameter of fuel droplets,micro-explosion intensity,frequency of micro-explosions,droplet evaporation time,and evaporation rate were analyzed at a temperature of 723 K.The results showed that the evaporation process of ethanol-methyl oleate blended fuel droplets at 723 K could be mainly divided into the droplet expansion stage,the slow evaporation stage,and the rapid evaporation stage.As the ethanol content increased from 0 to 40％,the evaporation of the ethanol-methyl oleate blended fuel was inhibited.Moreover,the droplet expansion and continuous micro-explosion phenomena were more pronounced during the early stage of evaporation.Additionally,for the ethanol-methyl oleate blended fuel(Ex-0.5％Al2O3)doped with alumina nanoparticles at 723 K,the higher ethanol content,the larger the maximum relative diameter of droplets during micro-explosion and the higher average evaporation rate of the droplets.The relative diameter of E00-0.5％Al2O3、E20-0.5％Al2O3 and E40-0.5％Al2O3 were 1.21、1.61 and 2.86,and the average evaporation rates were 0.114,0.260 and 0.350 mm2/s,respectively.关键词
乙醇-油酸甲酯/液滴蒸发/微爆特性/蒸发速率Key words
ethanol-methyl oleate/droplet evaporation/microburst characteristics/evaporation rate分类
化学工程引用本文复制引用
黄晨峻,姜根柱,章金鑫,危昊翔,王筱蓉,熊才溢..乙醇-油酸甲酯生物柴油蒸发特性研究[J].生物质化学工程,2025,59(2):15-22,8.基金项目
国家自然科学基金资助项目(52006185) （52006185）
江苏省研究生创新基金项目(No.SJCX22_1930) （No.SJCX22_1930）
