Configuration of T and Y-Junction on Droplets Generation in Liquid-Liquid Two-Phase System

Widianto, Aloisiyus Yuli (2026) Configuration of T and Y-Junction on Droplets Generation in Liquid-Liquid Two-Phase System. In: THE 10TH INTERNATIONAL CONFERENCE ON SCIENCE AND TECHNOLOGY (ICST) 2024: Life Sciences, Materials, and Applied Chemistry Symposium, 23–24 October 2024, Yogyakarta.

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Abstract

Microdevices technology offers advantages in many process applications, particularly in heterogeneous processes involving mass and or heat transfer between different phases. The application of an immiscible liquid-liquid twophase system involves the formation of a flow pattern in the microchannel starting from the contact of the two liquid phases through the T and Y-junction. To optimize the utilization of microdevices, understanding the hydrodynamic characteristics within microchannels is a critical aspect to consider. For this reason, this study aims to comprehensively investigate the influence of T and Y-junction configurations on droplets/slug generation within a silicon and PTFE tube microchannel. The flow patterns at different flow rates of dispersed and continuous phases were observed using two types of liquid mixtures: water-kerosene and water-ethyl acetate, which represent the different liquid properties. The results indicate that a circular Y-junction configuration is more favorable for systems with high continuous phase viscosity, as shown by a regular flow pattern with uniform droplet/slug size and stable superficial velocity. On the other hand, a circular T-junction is favorable for a more comprehensive range of liquid viscosities applications; in this case, it includes highly dilute liquids. Further, the droplet generation in a T-junction configuration shows a behavior where viscosity and linear velocity have a less significant influence, as observed in a Y-junction system. The flow formation in the observed system is affected by three dominant forces: interfacial tension, inertia, and viscous forces, which can be determined from the magnitude of dimensionless numbers, in this case, Reynolds, Capillary, and Weber numbers.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	Q Science > Q Science (General) T Technology > TP Chemical technology
Divisions:	Faculty of Engineering > Department of Chemical Engineering
Depositing User:	Aloysius Yuli W, 61141
Date Deposited:	07 Jul 2026 09:13
Last Modified:	07 Jul 2026 09:13
URI:	http://repository.ubaya.ac.id/id/eprint/50914

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