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Título: | Triboemission of FINE and ultrafine aerosol particles: A new approach for measurement and accurate quantification |
Autor: | Nevshupa, Roman CSIC ORCID; Castellote, Marta CSIC ORCID; Cornelio, Jesus Antonio Carlos; Toro, Alejandro | Palabras clave: | Triboemission Abrasion Solid lubricants Fine particle aerosol |
Fecha de publicación: | 2020 | Editor: | Multidisciplinary Digital Publishing Institute | Citación: | Lubricants 8(2): 21 (2020) | Resumen: | A dynamic model based on mass balance of fine aerosol particles was developed in order to tackle the problem of accurate quantification of mechanically stimulated particle emission (MSPE) from nanofunctionalized and solid lubricating materials. In contrast to the conventional approach, the model accounts for the effect of air turbulization caused by moving parts of the experimental tribological setup on the enhancement of particle deposition velocity. The increase of the velocity of the moving parts results in an increase of the deposition velocity that leads to a significant underestimation of experimentally measured particle emission rates. The developed model was experimentally verified using natural and artificial nanoparticle aerosols. Finally, the new methodology of particle emission rate quantification was employed for the analysis of fine particle emission produced when the solid lubricating materials were tested against a sliding steel surface. The developed method paves the way for defining a standard method of experimental assessment of nanoparticle triboemission enabling the experimental results obtained in various laboratories to be compared. It also bridges the gap between the phenomenological models and experimental measurements. | Descripción: | This article belongs to the Special Issue Selected Papers from the 7th European Conference on Tribology (ECOTRIB2019). | Versión del editor: | https://doi.org/10.3390/lubricants8020021 | URI: | http://hdl.handle.net/10261/202416 | DOI: | 10.3390/lubricants8020021 | E-ISSN: | 2075-4442 |
Aparece en las colecciones: | (IETCC) Artículos |
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Triboemission_Nevshupa_Art2020.pdf | 3,04 MB | Adobe PDF | Visualizar/Abrir |
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