小桐子油及其生物柴油雾化特性实验研究
梁志松¹，周旺¹，林曦鹏²，骆开军¹，谢宁宁¹，陈海生^1，2
（1. 毕节高新技术产业开发区国家能源大规模物理储能技术研发中心，贵州 毕节 551700；2. 中国科学院工程热物理研究所，
北京 100190）
摘要： 采用雾化喷吹实验，研究不同雾化压力条件对小桐子油及其生物柴油雾化特性的影响。首先对小桐子油及其生
物柴油在不同温度下的运动黏度进行测定，并进行数据拟合。喷吹对比实验结果表明，随着雾化压力的升高，雾化贯穿距
增大，雾化锥角变大。相同压力条件下，小桐子生物柴油的贯穿距和雾化锥角比小桐子油大，雾化效果好。小桐子油及其
生物柴油雾化粒径和轴向速度受压力、温度共同影响，其中，雾化压力对小桐子生物柴油的影响更大。随着雾化压力的增
大，小桐子油及其生物柴油的雾化粒径逐渐减小，同时雾化粒径随轴向距离的增大逐渐减小，小桐子油及其生物柴油沿
喷口轴向的速度逐渐减小。到距轴向20 cm 后，速度基本趋于稳定，并且随着压力的升高，轴向速度减小的幅度更明显。
关键词： 小桐子油；小桐子生物柴油；雾化粒径；轴向速度
中图分类号： TS225；TQ51     文献标识码： A     文章编号： 2095-0802-(2022)04-0001-04
Experimental Study on Atomization Characteristics of Jatropha Curcas Oil and
Jatropha Biodiesel
LIANG Zhisong¹, ZHOU Wang¹, LIN Xipeng², LUO Kaijun¹, XIE Ningning¹, CHEN Haisheng^1,2
(1. National Energy Large Scale Physical Energy Storage Technologies R&D Center of Bijie High-tech Industrial Development
Zone, Bijie 551700, Guizhou, China; 2. Institute of Engineering Thermophysics, Chinese Academy of Sciences,
Beijing 100190, China)
Abstract: In this paper, the atomization injection experiment was used to study the effect of different atomization pressure
conditions on the atomization characteristics of Jatropha curcas oil and its biodiesel. First, the kinematic viscosity of Jatropha
curcas oil and its biodiesel at different temperatures were measured and data fitting was carried out. The results of the injection
comparison test show that as the atomization pressure increases, the atomization penetration distance increases and the atomization
cone angle gets bigger. The penetration distance and atomization cone angle of Jatropha biodiesel are larger than that of Jatropha
curcas oil under the same pressure conditions, and the atomization effect is good. The atomized particle size and axial velocity of
Jatropha curcas oil and its biodiesel are affected by both pressure and temperature. Among them, the atomization pressure has a
greater influence on Jatropha biodiesel. As the atomization pressure increases, the atomized particle size of Jatropha curcas oil and
its biodiesel gradually decreases, while the increase in the atomized particle size along the axial distance gradually decreases. The
velocity of Jatropha curcas oil and its biodiesel in the axial direction of the nozzle gradually decreases. After reaching a distance
of 20 cm from the axial direction, the velocity tends to stabilize, and as the pressure increases, the magnitude of the decrease in
the axial velocity becomes more obvious.

Key words: Jatropha curcas oil; Jatropha biodiesel; atomized particle size; axial velocity