Thermal engineering of electronic cigarettes

Soulet, Sébastien; Casile, Carine

doi:10.1016/j.csite.2023.103512

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Case Studies in Thermal Engineering

2023

DOI: 10.1016/j.csite.2023.103512

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Thermal engineering of electronic cigarettes

Sébastien Soulet,

Carine Casile

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2023

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Cited by 1 publication

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Physical and chemical characterizations of a reference e-cigarette used in animal testing

Soulet,

Constans,

Quinty

2023

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A minimal necessary condition for preclinical studies to contribute to risk assessments of e-cigarettes (ECs) is the ability to expose laboratory animals to an appropriate dosage of aerosols. In this study, we examined the fulfilment of this essential consistency condition for the ECX-Joyetech E-Vic Mini (ECX), a piece of computerized exposure equipment manufactured by SCIREQ, which has been employed by numerous in vivo testing. We began by calibrating the customary Evic VTC mini device mod and the 4 coils available, reproducing in the laboratory the operation of the ECX in the power-control and temperature-control modes, using puffing parameters recommended by its documentation. We then conducted the following tests for each coil: (1) verifying whether the generated aerosols satisfy an optimal operational regime, free from overheating, as determined by a linear relation between the mass of vaporized e-liquid vs. supplied power and (2) obtaining the mean yields of aldehydes for each of the tested power settings and coils. The results of these tests show that, under the main conditions used in in vivo testing, the ECX equipment fails to comply with these consistency requirements, especially for coils with low subohm resistance, a shortcoming that can be corrected by applying much larger airflows for these coils. Therefore, the outcomes of preclinical studies using the ECX equipment should be examined with great scepticism and subjected to further testing.

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Physical and chemical characterizations of a reference e-cigarette used in animal testing

Soulet,

Constans,

Quinty

2023

Sci Rep

Self Cite

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Thermal engineering of electronic cigarettes

Cited by 1 publication

References 24 publications

Physical and chemical characterizations of a reference e-cigarette used in animal testing

Physical and chemical characterizations of a reference e-cigarette used in animal testing

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