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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union
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https://doi.org/10.5194/amt-2020-155
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-2020-155
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: research article 09 Jun 2020

Submitted as: research article | 09 Jun 2020

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This preprint is currently under review for the journal AMT.

Aqueous particle generation with a 3D printed nebulizer

Michael Rösch1,2 and Daniel J. Cziczo1,3,4 Michael Rösch and Daniel J. Cziczo
  • 1Department of Earth, Atmospheric & Planetary Sciences, Massachusetts Institute of Technology, Cambridge, 02139, USA
  • 2Department of Environmental Systems Science, Eidgenössische Technische Hochschule-ETH, Zurich, 8092, Switzerland
  • 3Department of Civil Environmental Engineering, Massachusetts Institute of Technology, Cambridge, 702139, USA
  • 4Department of Earth, Atmospheric and Planetary Sciences, Purdue University, West Lafayette, IN 47907, USA

Abstract. In this study, we describe the design and testing of a high output stability constant liquid feed nebulizer using the Venturi principle to generate liquid particles from solutions. This atomizer, the PRinted drOpleT Generator (PROTeGE) was manufactured using stereolithography (SLA) printing. Different concentrations of ammonium sulfate solutions were used to characterize the size and number concentration of the generated particles. A comparison of a 3D printed 0.5 mm orifice with a more dimensionally accurate and symmetric machined 0.5 mm brass orifice using the same ammonium sulfate solutions was also performed. PROTeGE is also shown to be capable of dispersing polystyrene latex spheres (PSLs) for calibration purposes. The particle number concentrations obtained in this study ranged from ~10 000 cm−3 for 0.75 micrometer to ~100 cm−3 for 5.0 micrometer PSL particles with a dependence on the concentration of the dispersed solution. PROTeGE is easy to manufacture and operate, low in maintenance, and cost-effective for laboratory and field generation of particles from aqueous media.

Michael Rösch and Daniel J. Cziczo

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Status: open (until 04 Aug 2020)
Status: open (until 04 Aug 2020)
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Michael Rösch and Daniel J. Cziczo

Michael Rösch and Daniel J. Cziczo

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Latest update: 10 Jul 2020
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Short summary
The need for a simple atomizer with a high output stability combined with the capabilities of CAD software and high resolution 3D printing has allowed for the design, production and testing of the PRinted drOpleT Generator (PROTeGE) to generate liquid particles from solutions. The size and number concentrations of the generated particles has been characterized with different ammonium sulfate and PSL solutions. PROTeGE is easy to operate, requires minimal maintenance and is cost-effective.
The need for a simple atomizer with a high output stability combined with the capabilities of...
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