کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
154658 456848 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The dynamic mass transfer of surfactants upon droplet formation in coaxial microfluidic devices
ترجمه فارسی عنوان
انتقال جرم پویا از سورفکتانت ها به شکل قطرات در دستگاه های میکرو فلوئیدیک کواکسیال
کلمات کلیدی
انتقال جمعی پویا، تشکیل قطره، سورفاکتانت، دستگاه میکرو فلوئیدی هم محوری
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• Mass transfer in coaxial microfluidic devices was studied during droplet formation.
• Dynamic adsorption of surfactants was used to evaluate mass transfer coefficient.
• Mass transfer coefficient inner and external droplet were evaluated respectively.
• Semi-empirical equations were developed to put into the effects of convection.

In this work, the dynamic adsorption of surfactants is used to evaluate the mass transfer coefficient during droplet formation. As surfactants exist in only one phase and at the interface, the resistance of mass transfer inside and outside the droplet can be decoupled. By exchanging the continuous phase and dispersed phase (N-hexane/water-Tween 80), the mass transfer coefficients inside and outside the droplet were evaluated. A semi-empirical equation with modified parameters was developed to incorporate the effects of convection and the experimental conditions on the mass transfer coefficient during droplet formation in micro-channels. The results presented in this work provide a more in-depth understanding of the dynamic mass transfer of surfactants inside and outside the droplet during the formation of a droplet in microfluidic devices.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Science - Volume 132, 18 August 2015, Pages 1–8
نویسندگان
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