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Applied Sciences
Volume 11
Issue 11
10.3390/app11115254
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Article

Highlighting Specific Features to Reduce Chemical and Thermal Risks of Electronic Cigarette Use through a Technical Classification of Devices

by
Sébastien Soulet
1,*,
Marie Duquesne
2,
Charly Pairaud
1 and
Jean Toutain
2
1
Ingésciences, 2 Chemin des Arestrieux, 33610 Cestas, France
2
Bordeaux INP, CNRS, I2M Bordeaux, ENSCBP, 16 Avenue Pey Berland, CEDEX, 33607 Pessac, France
*
Author to whom correspondence should be addressed.
Appl. Sci. 2021, 11(11), 5254; https://doi.org/10.3390/app11115254
Received: 24 March 2021 / Revised: 27 May 2021 / Accepted: 1 June 2021 / Published: 5 June 2021
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Abstract

Currently, the emission generation protocol of electronic cigarettes has only one standardized vaping regimen that is consistent with mouth-to-lungs inhalation. Recent works show the significant increase in performance of the device with the use of a direct lung vaping regimen (167 mL s−1, consistent with direct lung inhalation). However, requirements are needed for its use in a laboratory. This work aims at identifying mechanical characteristics of a device and providing a classification based on recommended power range, electrical resistance, heating surface, and air resistance of twenty-six tested devices. The electrical resistivity relation allows the estimation of the wire surface using its diameter and its length. The air resistance is obtained by measuring the pressure drop of the tested device with airflow rates ranging from 1–10 L min−1. Through the wide panel of tested devices, results allow separating them in two categories: classical and sub-ohm electronic cigarettes consistent with the two inhalation behaviours. Differences up to 71 mm2 for the wire surface and up to 4.8 Pa 0.5 min L−1 for the air resistance are observed between them. This limit seems to correspond to a required power of 25 W and an electrical resistance of 1.1 Ω. View Full-Text
Keywords: wire surface; heat flux; air resistance; vaping regimen wire surface; heat flux; air resistance; vaping regimen
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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MDPI and ACS Style

Soulet, S.; Duquesne, M.; Pairaud, C.; Toutain, J. Highlighting Specific Features to Reduce Chemical and Thermal Risks of Electronic Cigarette Use through a Technical Classification of Devices. Appl. Sci. 2021, 11, 5254. https://doi.org/10.3390/app11115254

AMA Style

Soulet S, Duquesne M, Pairaud C, Toutain J. Highlighting Specific Features to Reduce Chemical and Thermal Risks of Electronic Cigarette Use through a Technical Classification of Devices. Applied Sciences. 2021; 11(11):5254. https://doi.org/10.3390/app11115254

Chicago/Turabian Style

Soulet, Sébastien, Marie Duquesne, Charly Pairaud, and Jean Toutain. 2021. "Highlighting Specific Features to Reduce Chemical and Thermal Risks of Electronic Cigarette Use through a Technical Classification of Devices" Applied Sciences 11, no. 11: 5254. https://doi.org/10.3390/app11115254

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