Experimental Investigation Evaporation of Liquid Mixture Droplets during Depressurization and into Air Stream
The objective of this study is to develop experimental method to study the evaporation process of liquid mixture droplets during depressurization and into air stream. During the experiment, a droplet was suspended on a thermocouple; an infrared thermal imager was used to measure the droplet surface temperature transition. Saltwater droplets were used to investigate the evaporation process during depressurization, and volatile liquid mixtures of ethanol, methanol and acetone in water were applied to experimentally research the evaporation into air stream. According to the results, the composition and concentration has a complex influence on the evaporation rate and the temperature transition. With an increase in the share of more volatile component, the evaporation rate increases. While, a higher salt concentration in water results in a lower evaporation rate. The shape variation of saltwater droplet also depends on the mass concentration in solution, whether it is higher or lower than the eutectic point (22.4％). The results provide important insight into the complex heat and mass transfer of liquid mixture during evaporation.
Evaporation Liquid Mixture Droplet Temperature Transition
L.Liu Q.C.Bi Victor I.Terekhov Nikolay E.Shishkin
State Key Laboratory of Multiphase Flow, Xian Jiaotong University, China Institute of Thermophysics, Siberian Branch of Russian Academy of Sciences, Russia
国际会议
西安
英文
225-232
2009-07-11（万方平台首次上网日期，不代表论文的发表时间）