In this work, a simple optical measurement method for two-phase bubbly flow investigations was developed using backlight imaging and particle image velocimetry techniques. Besides information about bubble sizes, surface area and volumes, the mean dispersed phase mass flow rate and the mean dissolution of the dispersed phase in the continuous phase at the end of a static mixer were accurately estimated. The method was validated with air-in-glycerol and water-in-oil systems, and then proven with CO₂-glycerol and CO₂-PEG6000 dispersions under high pressure. A 30-element SMX4 plus static mixer with a nominal outer diameter of 4.8 mm was used for all mass transfer investigations. Measurements of the dispersed phase mass flow and the dissolution of the dispersed phase at the end of the mixer are reported with combined uncertainties of 8.1 % and 1.0 wt-%. The first experiments with CO₂-glycerol and CO₂-PEG6000 prove the applicability of this method for systems under high pressure.

在这项工作中，使用背光成像和粒子图像测速技术开发了一种用于两相气泡流研究的简单光学测量方法。除了有关气泡大小，表面积和体积的信息外，还精确估算了静态混合器末端的平均分散相质量流速和连续相中分散相的平均溶解度。该方法在空气中甘油和油包水系统中进行了验证，然后在CO _2-甘油和CO _{2中进行了验证。}-PEG6000在高压下分散。所有传质研究均使用标称外径为4.8 mm的30元素SMX4加静态混合器。据报道，在混合器的末端进行了分散相质量流量和分散相溶解的测量，综合不确定度为8.1％和1.0 wt％。用CO _2-甘油和CO ₂ -PEG6000进行的首次实验证明了该方法在高压系统中的适用性。