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Coil-in-Coil Reactor: Augmenting Plug Flow Performance by Combining Different Geometric Features Using 3D Printing

Lookup NU author(s): Dr Jonathan McDonough, Dr Richard Law, Professor Adam Harvey

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This is the authors' accepted manuscript of an article that has been published in its final definitive form by American Chemical Society, 2019.

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Abstract

Additive manufacturing enables the fabrication of geometries previously unavailable via conventional means. Here, a helically coiled channel containing a secondary helical coil insert was 3D-printed and operated in a net flow with superimposed oscillation. This “coil-in-coil” geometry exhibited exceptional plug flow quality at low Reynolds numbers (Re = 10–50). High levels of plug flow were observed at oscillation amplitudes of 2–8 mm. The greatest degree of plug flow occurred with Reo/Ren = 2–7 and Sr = 1–2. Surprisingly, the coil-in-coil geometry demonstrated excellent plug flow behavior (N = 40–100) at very low oscillation frequencies (f = 0.25–0.5 Hz). Compared to various benchmark designs (“plain” coiled tube, straight tube containing a helical coil insert, and plain straight tube), the coil-in-coil geometry demonstrated enhanced plug flow quality at low frequencies (≤1 Hz) at all amplitudes and low amplitudes (1–2 mm) at all frequencies.


Publication metadata

Author(s): McDonough JR, Armett J, Law R, Harvey AP

Publication type: Article

Publication status: Published

Journal: Industrial & Engineering Chemistry Research

Year: 2019

Volume: 58

Issue: 47

Pages: 21363-21371

Online publication date: 01/11/2019

Acceptance date: 01/11/2019

Date deposited: 20/01/2020

ISSN (print): 0888-5885

ISSN (electronic): 1520-5045

Publisher: American Chemical Society

URL: https://pubs.acs.org/doi/abs/10.1021/acs.iecr.9b04239

DOI: 10.1021/acs.iecr.9b04239


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