The effects of ambient temperature and initial droplet volume on the droplet evaporation characteristics of microemulsified methanol-diesel fuel were studied by hanging drop method. The results show that the micro-explosion generation moment advances and the droplet lifetime decreases with the increase of ambient temperature. With the increase of initial droplet volume, the number of micro-explosion increases and the intensity of micro-explosion decreases gradually. Under the same methanol content, the micro-explosion intensity of 0.8 μL small droplets gradually decreases and the evaporation process of droplets gradually flattens, while the first micro-explosion intensity and frequency of 1.6 μL large droplets gradually increase and the droplet fluctuation evaporation gradually become significant with the increase of ambient temperature. Small droplets are more likely to microexplode at lower temperatures, and large droplets are more likely to microexplode at higher temperatures. The internal nucleation rate and the surface evaporation rate of two-component droplet jointly affect the droplet micro-explosion.
HU Jiakang
,
XU Junfeng
,
YANG Wei
,
MA Fukang
,
ZOU Run
,
LI Feng
. Evaporation and Micro-Explosion Characteristics of Methanol-DieselMicroemulsified Droplet[J]. Vehicle Engine, 2023
, 0(6)
: 33
-38
.
DOI: 1001-2222.2023.06.005
