A numerical study on capillary-evaporation behavior of porous wick in electronic cigarettes

Abstract A mathematical model based on heat and mass transfer processes in the porous wick of electronic cigarettes was established to describe the atomization of e-liquids according to max liquid temperature, vaporization rate and thermal efficiency in a single puff. Dominant capillary-evaporation...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Yihan Gao, Dian Li, Jiexiong Ru, Muyun Yang, Lehua Lu, Li Lu, Jinlu Wu, Zhonghui Huang, Yan Xie, Naiping Gao
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3fd6dccf8c08487e8da80df3eb971616
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:3fd6dccf8c08487e8da80df3eb971616
record_format	dspace
spelling	oai:doaj.org-article:3fd6dccf8c08487e8da80df3eb9716162021-12-02T15:55:08ZA numerical study on capillary-evaporation behavior of porous wick in electronic cigarettes10.1038/s41598-021-89685-42045-2322https://doaj.org/article/3fd6dccf8c08487e8da80df3eb9716162021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-89685-4https://doaj.org/toc/2045-2322Abstract A mathematical model based on heat and mass transfer processes in the porous wick of electronic cigarettes was established to describe the atomization of e-liquids according to max liquid temperature, vaporization rate and thermal efficiency in a single puff. Dominant capillary-evaporation effects were defined in the model to account for the effects of electrical power, e-liquid composition and porosity of the wick material on atomization and energy transmission processes. Liquid temperature, vaporization rate, and thermal efficiency were predicted using the mathematical model in 64 groups, varying with electrical power, e-liquid composition and wick porosity. Experimental studies were carried out using a scaled-model test bench to validate the model’s prediction. A higher PG/VG ratio in the e-liquid promoted energy transfer for vaporization, and the e-liquid temperature was comparatively reduced at a relatively high power, which was helpful to avoid atomizer overheating. Compared with the other factors, wick porosity affected the thermal efficiency more significantly. The vaporization rate increased with a higher wick porosity in a certain range. The modelling results suggested that a greater wick porosity and a higher PG ratio in e-liquids helped to improve the overall thermal efficiency.Yihan GaoDian LiJiexiong RuMuyun YangLehua LuLi LuJinlu WuZhonghui HuangYan XieNaiping GaoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yihan Gao Dian Li Jiexiong Ru Muyun Yang Lehua Lu Li Lu Jinlu Wu Zhonghui Huang Yan Xie Naiping Gao A numerical study on capillary-evaporation behavior of porous wick in electronic cigarettes
description	Abstract A mathematical model based on heat and mass transfer processes in the porous wick of electronic cigarettes was established to describe the atomization of e-liquids according to max liquid temperature, vaporization rate and thermal efficiency in a single puff. Dominant capillary-evaporation effects were defined in the model to account for the effects of electrical power, e-liquid composition and porosity of the wick material on atomization and energy transmission processes. Liquid temperature, vaporization rate, and thermal efficiency were predicted using the mathematical model in 64 groups, varying with electrical power, e-liquid composition and wick porosity. Experimental studies were carried out using a scaled-model test bench to validate the model’s prediction. A higher PG/VG ratio in the e-liquid promoted energy transfer for vaporization, and the e-liquid temperature was comparatively reduced at a relatively high power, which was helpful to avoid atomizer overheating. Compared with the other factors, wick porosity affected the thermal efficiency more significantly. The vaporization rate increased with a higher wick porosity in a certain range. The modelling results suggested that a greater wick porosity and a higher PG ratio in e-liquids helped to improve the overall thermal efficiency.
format	article
author	Yihan Gao Dian Li Jiexiong Ru Muyun Yang Lehua Lu Li Lu Jinlu Wu Zhonghui Huang Yan Xie Naiping Gao
author_facet	Yihan Gao Dian Li Jiexiong Ru Muyun Yang Lehua Lu Li Lu Jinlu Wu Zhonghui Huang Yan Xie Naiping Gao
author_sort	Yihan Gao
title	A numerical study on capillary-evaporation behavior of porous wick in electronic cigarettes
title_short	A numerical study on capillary-evaporation behavior of porous wick in electronic cigarettes
title_full	A numerical study on capillary-evaporation behavior of porous wick in electronic cigarettes
title_fullStr	A numerical study on capillary-evaporation behavior of porous wick in electronic cigarettes
title_full_unstemmed	A numerical study on capillary-evaporation behavior of porous wick in electronic cigarettes
title_sort	numerical study on capillary-evaporation behavior of porous wick in electronic cigarettes
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/3fd6dccf8c08487e8da80df3eb971616
work_keys_str_mv	AT yihangao anumericalstudyoncapillaryevaporationbehaviorofporouswickinelectroniccigarettes AT dianli anumericalstudyoncapillaryevaporationbehaviorofporouswickinelectroniccigarettes AT jiexiongru anumericalstudyoncapillaryevaporationbehaviorofporouswickinelectroniccigarettes AT muyunyang anumericalstudyoncapillaryevaporationbehaviorofporouswickinelectroniccigarettes AT lehualu anumericalstudyoncapillaryevaporationbehaviorofporouswickinelectroniccigarettes AT lilu anumericalstudyoncapillaryevaporationbehaviorofporouswickinelectroniccigarettes AT jinluwu anumericalstudyoncapillaryevaporationbehaviorofporouswickinelectroniccigarettes AT zhonghuihuang anumericalstudyoncapillaryevaporationbehaviorofporouswickinelectroniccigarettes AT yanxie anumericalstudyoncapillaryevaporationbehaviorofporouswickinelectroniccigarettes AT naipinggao anumericalstudyoncapillaryevaporationbehaviorofporouswickinelectroniccigarettes AT yihangao numericalstudyoncapillaryevaporationbehaviorofporouswickinelectroniccigarettes AT dianli numericalstudyoncapillaryevaporationbehaviorofporouswickinelectroniccigarettes AT jiexiongru numericalstudyoncapillaryevaporationbehaviorofporouswickinelectroniccigarettes AT muyunyang numericalstudyoncapillaryevaporationbehaviorofporouswickinelectroniccigarettes AT lehualu numericalstudyoncapillaryevaporationbehaviorofporouswickinelectroniccigarettes AT lilu numericalstudyoncapillaryevaporationbehaviorofporouswickinelectroniccigarettes AT jinluwu numericalstudyoncapillaryevaporationbehaviorofporouswickinelectroniccigarettes AT zhonghuihuang numericalstudyoncapillaryevaporationbehaviorofporouswickinelectroniccigarettes AT yanxie numericalstudyoncapillaryevaporationbehaviorofporouswickinelectroniccigarettes AT naipinggao numericalstudyoncapillaryevaporationbehaviorofporouswickinelectroniccigarettes
_version_	1718385386492788736

A numerical study on capillary-evaporation behavior of porous wick in electronic cigarettes

Ejemplares similares