Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Design and Analysis of New Micromixers Based on Distillation Column Trays

Version 1 : Received: 13 December 2019 / Approved: 15 December 2019 / Online: 15 December 2019 (15:31:48 CET)

A peer-reviewed article of this Preprint also exists.

Lameu da Silva Júnior, J., Haddad, V.A., Pereira Taranto, O. and Silva Santana, H. (2020), Design and analysis of new micromixers based on distillation column trays. Chem. Eng. Technol.. Accepted Author Manuscript. doi:10.1002/ceat.201900668 Lameu da Silva Júnior, J., Haddad, V.A., Pereira Taranto, O. and Silva Santana, H. (2020), Design and analysis of new micromixers based on distillation column trays. Chem. Eng. Technol.. Accepted Author Manuscript. doi:10.1002/ceat.201900668

Journal reference: Chemical Engineering & Technology 2020
DOI: 10.1002/ceat.201900668

Abstract

In the present paper four passive micromixers designs (G1, G2, G3 and G4) inspired on distillation columns trays were proposed. The devices performance was assessed by numerical simulations. The mixing performance was investigated for a Reynolds number range from 0.01 to 100 and channel height of 200 µm, 500 µm and 1000 µm for oil/ethanol flow. G1 and G4 designs provided high mixing index (> 0.975). The G1 device achieved superior mixing performance with a moderate pressure drop (about 0.5 MPa) due to the induced flow recirculation pattern for a relative high flow rate of 0.21 L/min, highlighting the potential use of such microdevice for scale-up and numbering-up of microdevices in modular chemical plant processing.

Subject Areas

chaotic advection; microfluidics; micromixer; numerical simulation; process intensification

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