Highlighting Specific Features to Reduce Chemical and Thermal Risks of Electronic Cigarette Use through a Technical Classification of Devices
| Autor: | Charly Pairaud, Marie Duquesne, Sébastien Soulet, Jean Toutain |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Technology
Materials science QH301-705.5 QC1-999 Airflow heat flux 010501 environmental sciences wire surface 01 natural sciences Automotive engineering 03 medical and health sciences 0302 clinical medicine Electrical resistance and conductance Electrical resistivity and conductivity vaping regimen Thermal General Materials Science 030212 general & internal medicine Biology (General) QD1-999 Instrumentation 0105 earth and related environmental sciences Fluid Flow and Transfer Processes Protocol (science) Pressure drop Physics Process Chemistry and Technology General Engineering Engineering (General). Civil engineering (General) Electronic Cigarette Use Computer Science Applications Power (physics) Chemistry air resistance TA1-2040 |
| Zdroj: | Applied Sciences, Vol 11, Iss 5254, p 5254 (2021) Applied Sciences Volume 11 Issue 11 |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app11115254 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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