乙醇对棕榈酸甲酯液滴蒸发特性的影响研究  

Effect of Ethanol on the Evaporation Characteristics of Methyl Palmitate Droplets

作　　者：孙文强 姜根柱[1] 薛文华 汤诗婷 王筱蓉[1] SUN Wen-qiang;JIANG Gen-zhu;XUE Wen-hua;TANG Shi-ting;WANG Xiao-rong(School of Mechanical Engineering,Jiangsu University of Science and Technology,Zhenjiang 212100,Jiangsu,China)

机构地区：[1]江苏科技大学机械工程学院,江苏镇江212100

出　　处：《新能源进展》2022年第4期370-374,共5页Advances in New and Renewable Energy

基　　金：江苏省研究生创新基金项目(SJCX21_1758)。

摘　　要：由于使用化石能源带来的环境污染,寻找具有高能量密度的环保型生物燃料成为研究热点之一。采用挂滴法研究常压下温度为773 K和873 K时含有不同乙醇浓度(10%、20%、30%和40%)的棕榈酸甲酯混合燃料的蒸发特性。结果表明,每种液滴在平稳蒸发阶段都符合经典d2定律,当乙醇浓度达到40%时,混合燃料液滴的寿命明显缩短,平均蒸发率显著增高,尤其在环境温度为873 K时,这种提升更为明显。Due to the environmental pollution caused by using fossil energy,the search for environmentally friendly biofuels with high energy density has become one of the research hotspots.An experiment using the hanging drop method was carried out to study the evaporation characteristics of methyl palmitate mixed fuel containing different concentrations of ethanol(10%,20%,30% and 40%)at 773 K and 873 K under normal pressure.It was determined that each droplet conformed to the classical d^(2) law in the stable evaporation stage.When the ethanol concentration reached 40%,the life of the mixed fuel droplets was significantly shortened,and the average evaporation rate increased significantly,especially when the ambient temperature was 873 K,the improvement was more obvious.

关 键 词：液滴蒸发 乙醇 棕榈酸甲酯 

分 类 号：TK42[动力工程及工程热物理—动力机械及工程]