Thermophysical Characterization of Lubricants Additivated with Nanoparticles for their Application in Renewable Energies

This PhD Thesis is focused on the analysis of thermophysical and tribological properties of synthetic and mineral base oils, commercial lubricants (gearbox and motor oils) and new formulated nanolubricants. Nanoparticles of different morphology (spherical, rod-like and laminar) were used as lubrican...

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Detalles Bibliográficos
Autor: García Guimarey, María Jesús
Tipo de recurso: tesis doctoral
Fecha de publicación:2019
País:España
Institución:Universidad de Santiago de Compostela (USC)
Repositorio:Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela
Idioma:inglés
OAI Identifier:oai:minerva.usc.gal:10347/19104
Acceso en línea:http://hdl.handle.net/10347/19104
Access Level:acceso abierto
Palabra clave:Materias::Investigación::22 Física::2204 Física de fluidos::220408 Líquidos
Materias::Investigación::22 Física::2213 Termodinámica::221303 Altas presiones
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spelling Thermophysical Characterization of Lubricants Additivated with Nanoparticles for their Application in Renewable EnergiesGarcía Guimarey, María JesúsMaterias::Investigación::22 Física::2204 Física de fluidos::220408 LíquidosMaterias::Investigación::22 Física::2213 Termodinámica::221303 Altas presionesThis PhD Thesis is focused on the analysis of thermophysical and tribological properties of synthetic and mineral base oils, commercial lubricants (gearbox and motor oils) and new formulated nanolubricants. Nanoparticles of different morphology (spherical, rod-like and laminar) were used as lubricant additives: zirconium oxide and boron nitride nanoparticles together with graphene nanoplatelets. In order to propose new potential lubricants it is of vital importance to analyse the effect that the addition of the nanoadditives has on their thermophysical properties, because they affect the final lubricants performance. With this aim, the volumetric and viscous behaviour, viscosity index, flow curves and thermal conductivity were experimentally obtained. In order to know the mechanisms that control the tribological performance it is also necessary to determine the pressure-viscosity coefficient for elastohydrodynamic lubrication, the film thickness, the wear and the friction coefficient.Pérez Comuñas, María JoséAmigo Pombo, Alfredo JoséUniversidade de Santiago de Compostela. Centro Internacional de Estudos de Doutoramento e Avanzados (CIEDUS)Universidade de Santiago de Compostela. Escola de Doutoramento Internacional en Ciencias e Tecnoloxía20192019-01-0120192019-01-01doctoral thesishttp://purl.org/coar/resource_type/c_db06info:eu-repo/semantics/doctoralThesisapplication/pdfhttp://hdl.handle.net/10347/19104reponame:Minerva. Repositorio Institucional de la Universidad de Santiago de Compostelainstname:Universidad de Santiago de Compostela (USC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:minerva.usc.gal:10347/191042026-06-15T12:47:27Z
dc.title.none.fl_str_mv Thermophysical Characterization of Lubricants Additivated with Nanoparticles for their Application in Renewable Energies
title Thermophysical Characterization of Lubricants Additivated with Nanoparticles for their Application in Renewable Energies
spellingShingle Thermophysical Characterization of Lubricants Additivated with Nanoparticles for their Application in Renewable Energies
García Guimarey, María Jesús
Materias::Investigación::22 Física::2204 Física de fluidos::220408 Líquidos
Materias::Investigación::22 Física::2213 Termodinámica::221303 Altas presiones
title_short Thermophysical Characterization of Lubricants Additivated with Nanoparticles for their Application in Renewable Energies
title_full Thermophysical Characterization of Lubricants Additivated with Nanoparticles for their Application in Renewable Energies
title_fullStr Thermophysical Characterization of Lubricants Additivated with Nanoparticles for their Application in Renewable Energies
title_full_unstemmed Thermophysical Characterization of Lubricants Additivated with Nanoparticles for their Application in Renewable Energies
title_sort Thermophysical Characterization of Lubricants Additivated with Nanoparticles for their Application in Renewable Energies
dc.creator.none.fl_str_mv García Guimarey, María Jesús
author García Guimarey, María Jesús
author_facet García Guimarey, María Jesús
author_role author
dc.contributor.none.fl_str_mv Pérez Comuñas, María José
Amigo Pombo, Alfredo José
Universidade de Santiago de Compostela. Centro Internacional de Estudos de Doutoramento e Avanzados (CIEDUS)
Universidade de Santiago de Compostela. Escola de Doutoramento Internacional en Ciencias e Tecnoloxía
dc.subject.none.fl_str_mv Materias::Investigación::22 Física::2204 Física de fluidos::220408 Líquidos
Materias::Investigación::22 Física::2213 Termodinámica::221303 Altas presiones
topic Materias::Investigación::22 Física::2204 Física de fluidos::220408 Líquidos
Materias::Investigación::22 Física::2213 Termodinámica::221303 Altas presiones
description This PhD Thesis is focused on the analysis of thermophysical and tribological properties of synthetic and mineral base oils, commercial lubricants (gearbox and motor oils) and new formulated nanolubricants. Nanoparticles of different morphology (spherical, rod-like and laminar) were used as lubricant additives: zirconium oxide and boron nitride nanoparticles together with graphene nanoplatelets. In order to propose new potential lubricants it is of vital importance to analyse the effect that the addition of the nanoadditives has on their thermophysical properties, because they affect the final lubricants performance. With this aim, the volumetric and viscous behaviour, viscosity index, flow curves and thermal conductivity were experimentally obtained. In order to know the mechanisms that control the tribological performance it is also necessary to determine the pressure-viscosity coefficient for elastohydrodynamic lubrication, the film thickness, the wear and the friction coefficient.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019-01-01
2019
2019-01-01
dc.type.none.fl_str_mv doctoral thesis
http://purl.org/coar/resource_type/c_db06
dc.type.openaire.fl_str_mv info:eu-repo/semantics/doctoralThesis
format doctoralThesis
dc.identifier.none.fl_str_mv http://hdl.handle.net/10347/19104
url http://hdl.handle.net/10347/19104
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela
instname:Universidad de Santiago de Compostela (USC)
instname_str Universidad de Santiago de Compostela (USC)
reponame_str Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela
collection Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela
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