纳米粒子乙醇生物柴油混合液滴蒸发特性研究  

Droplet Evaporation Characteristics of Methyl Oleate and Ethanol Mixed with Nanoparticles

作　　者：危昊翔 姜根柱[1] 王筱蓉[1] 高建伟 姜熠豪 WEI Haoxiang;JIANG Genzhu;WANG Xiaorong;GAO Jianwei;JIANG Yihao(School of Mechanical Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,Jiangsu,China)

机构地区：[1]江苏科技大学机械工程学院,江苏镇江212003

出　　处：《昆明理工大学学报(自然科学版)》2025年第1期116-123,共8页Journal of Kunming University of Science and Technology(Natural Science)

基　　金：江苏省自然科学基金项目(BK20180982);江苏省研究生创新基金项目(SJCX22_1930).

摘　　要：为提高燃油蒸发性能,研究混合燃油的蒸发及微爆炸特性,采用悬挂法研究常压下乙醇含量(0、30%、50%)和是否掺混Al_(2)O_(3)纳米粒子对油酸甲酯溶液在723 K环境温度下蒸发特性的影响.实验结果表明在723 K环境温度下,增加乙醇含量会促进油酸甲酯液滴蒸发,但过多乙醇则会抑制蒸发,最佳乙醇含量为30%.掺混纳米粒子提高液滴的吸热能力,同时促进微爆炸的发生,进一步缩短混合液滴的蒸发寿命.另外建立了油酸甲酯-乙醇-Al_(2)O_(3)纳米粒子混合液滴的蒸发和微爆炸概念模型.To improve the evaporation performance of fuel,the evaporation and micro-explosion characteristics of mixed fuel were studied.The effects of ethanol content(0,30%,50%)and whether or not Al_(2)O_(3)nanoparticles were mixed at atmospheric pressure on the evaporation characteristics of methyl oleate solution at 723K were studied by suspension method.The experimental results show that at 723 K ambient temperature,increasing ethanol content can promote the evaporation of methyl oleate droplets,but excessive ethanol content can inhibit the evaporation,and the optimal ethanol content is 30%.The mixing of nanoparticles can improve the heat absorption capacity of the droplets,promote the occurrence of micro-explosion,and further shorten the evaporation life of the mixed droplets.In addition,the concept model of evaporation and microexplosion of mixed droplets of methyl oleate-ethanol-Al_(2)O_(3)nanoparticles was established.

关 键 词：液滴蒸发 乙醇 油酸甲酯 纳米粒子 微爆炸 

分 类 号：TE667[石油与天然气工程—油气加工工程]