Work

Numerical study on the evaporation rate of an electronic cigarette atomizer

Year: 2024

Type: article

Abstract: This work establishes an evaporation model for the electronic cigarette atomizer based on convective mass transfer theory. By adding the convection-diffusion equation and considering the energy loss caused by evaporation and the temperature variation over the atomizer body, the evaporation rate of the e-liquid from the atomizer is more accurately calculated, compared to the previous evaporation model based on the assumption of constant temperature over the atomizer body. The effects of external airflow velocity, atomizer porosity, heating power, atomizer shape, heating method, and groove width on the average surface temperature and evaporation rate of the atomizer are examined. The results show that compared with other factors, the external air flow velocity has relatively insignificant influence on the evaporation rate of the atomizer. The cylindrical atomizer has better evaporation performance than the cuboid and grooved atomizer, if all atomizer surfaces are heated, however, when the heating area of the grooved atomizer is optimized, i.e., only the surfaces with large evaporation rates are heated, the evaporation rate of a grooved atomizer can be higher than that of a cylindrical atomizer.

Source: Case Studies in Thermal Engineering

DOI: 10.1016/j.csite.2024.104972

Authors: Lei Zhao, Jian Xu, Zhaosheng Yu

Institutions: State Key Laboratory Fluid Power and Mechatronic Systems, Zhejiang University, China Tobacco

Language: English

Topic: Smoking Behavior and Cessation

Subfield: Physiology

Field: Medicine

Domain: Health Sciences

Open Access status: gold

Estimated APC paid: $1,210

Funders: National Natural Science Foundation of China, National Aerospace Science Foundation of China, Zhejiang Key Laboratory of Pathophysiology