نوع مقاله : مقاله پژوهشی
نویسندگان
1 عضو هیات علمی، دانشکده مهندسی شیمی، دانشگاه صنعتی امیرکبیر
2 دانشکده مهندسی شیمی-دانشگاه صنعتی امیر کبیر- پردیس ماهشهر
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Two-phase systems are important tools for droplet formation that have received much attention in the recent decades due to their vast applications. In the present work, the process of water droplet formation in oil in a coaxial geometry using the fluid volume method and the impact of effective parameters such as dispersed phase and density and also interfacial tension are investigated. The results are used to produce spherical gamma alumina particles by oil drop method. In this study, using a laboratory setup, the factors affecting the drop formation process are investigated. Results are validated against laboratory data. The measurement error is about 5% for droplet size and about 4% for sphericity; The results show the accuracy and ability of the model in simulating this phenomenon. Studies show that although the mentioned parameters have a great effect on droplet size and separation time, but the dependency of droplets diameter on interfacial tension and dispersed phase density is higher. Increasing the interfacial tension causes increasing droplets size and separation time. Results also indicated that increasing the density of dispersed phase reduces the droplets diameter and increases separation time. Increasing the velocity also had a small effect, but lead to an increase in size and reduces droplets separation time.
کلیدواژهها [English]
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