Rapid mixing between ferro-nanofluid and water in a semi-active Y-type micromixer
Journal
Sensors and Actuators, A: Physical
Journal Volume
153
Journal Issue
2
Pages
267-273
Date Issued
2009
Author(s)
Tsai, T.-H.
Liou, D.-S.
Kuo, L.-S.
Chen, P.-H.
Tsai, Tsung-Han
Liou, DS
Kuo, Long-Sheng
Chen, Ping-Hei
Abstract
This study investigates the mixing phenomena between ferro-nanofluid (a water solution with suspended Fe3O4 nanoparticles) and water in a Y-type semi-active micromixer. A permanent magnet with a magnetic strength of 2200 G was installed directly under the mixer at a location behind the junction of the Y-type micromixer to improve the mixing between ferro-nanofluid and water. The permanent magnet is 9.6 mm long, 9.6 mm wide and 1.6 mm thick. Equal volumetric flow rates for both ferro-nanofluid and water were tested in two different channel widths, 300 μm and 500 μm. Three different volumetric flow rates of 3 μL/min, 6 μL/min, and 10 μL/min were analyzed to determine the effect of flow rate on the mixing of fluids in the micromixer. Since Fe3O4 nanoparticles in the ferro-nanofluid are strongly affected by a relatively uniform magnetic field from the permanent magnet, measured results show that a rapid mixing between ferro-nanofluid and water can be achieved immediately downstream of the permanent magnet for all volumetric flow rates and all channel widths tested in this study. © 2009 Elsevier B.V. All rights reserved.
SDGs
Type
journal article