定容弹内柴油/丁醇混合燃料燃烧特性研究  

Combustion Characteristics of Diesel/Butanol Blends Within a Constant Volume Combustion Chamber

作　　者：李文豪 玄铁民 何志霞 王谦 李卫民 Wenhao Li;Tiemin Xuan;Zhixia He;Qian Wang;Weimin Li(Institute for Energy Research,Jiangsu University,Zhenjiang 212013,China;School of Energy and Power Engineering,Jiangsu University,Zhenjiang 212013,China;Shenzhen College of Advanced Technology,University of Chinese Academy of Sciences,Shenzhen 518055,China;Shandong Zhongke Advanced Technology Co.,Ltd.Jinan 250101,China)

机构地区：[1]Institute for Energy Research,Jiangsu University,Zhenjiang 212013,China [2]School of Energy and Power Engineering,Jiangsu University,Zhenjiang 212013,China [3]Shenzhen College of Advanced Technology,University of Chinese Academy of Sciences,Shenzhen 518055,China [4]Shandong Zhongke Advanced Technology Co.,Ltd.Jinan 250101,China

出　　处：《哈尔滨工程大学学报（英文版）》2023年第4期850-860,共11页Journal of Marine Science and Application

基　　金：Supported by the National Natural Science Foundation of China(Grant No.52276116);Shenzhen Basic Key Research Project(Grant No.JCYJ20200109115414354).

摘　　要：In this paper,the spray and combustion characteristics of diesel/butanol-blended fuels were studied within a high-temperature and high-pressure constant volume chamber equipped with a single-hole injector.Two blends with 80%diesel/20%butanol and 60%diesel/40%butanol mixed by volume were tested in this study.The pure diesel B0 was also tested here as a reference.The spray penetration,flame lift-off length,and soot optical thickness were obtained through high-speed schlieren imaging,OH*chemiluminescence,and diffused back-illumination extinction imaging technique,respectively.The thermogravimetric curves of different fuels were obtained through a thermogravimetric analyzer.The results showed that butanol/diesel blends presented a longer ignition delay(ID)and flame lift-off length compared with pure diesel,and such finding was mainly caused by the lower cetane number and higher latent heat of vaporization of n-butanol.With the increase in the n-butanol ratio,soot production in the combustion process decreased significantly.Given the shorter ID period,the soot distribution of pure diesel reached a steady state earlier than the blends.

关 键 词：Diesel/Butanol blend Optical diagnosis Thermogravimetric analysis Spray characteristic Soot formation 

分 类 号：U664.1[交通运输工程—船舶及航道工程]