Stabilization and characterization of a nanofluid based on a eutectic mixture of diphenyl and diphenyl oxide and carbon nanoparticles under high temperature conditions
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Altres documents de l'autoria: Gimeno Furió, Alexandra; Navarrete Argilés, Nuria; Mondragon, Rosa; Hernandez, Leonor; Martinez Cuenca, Raul; Cabedo, Luis; Juliá Bolívar, José Enrique
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https://doi.org/10.1016/j.ijheatmasstransfer.2017.05.097 |
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Títol
Stabilization and characterization of a nanofluid based on a eutectic mixture of diphenyl and diphenyl oxide and carbon nanoparticles under high temperature conditionsAutoria
Data de publicació
2017-06Editor
ElsevierCita bibliogràfica
GIMENO-FURIO, Alexandra, et al. Stabilization and characterization of a nanofluid based on a eutectic mixture of diphenyl and diphenyl oxide and carbon nanoparticles under high temperature conditions. International Journal of Heat and Mass Transfer, 2017, vol. 113, p. 908-913.Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
http://www.sciencedirect.com/science/article/pii/S0017931016339874#ak005Versió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
(C12H10O), and it is used as an HTF with a maximum working temperature of 400 °C. However, one of the drawbacks of Therminol VP1 is its low thermal conductivity. In recent years it has been demonstrated that the ... [+]
(C12H10O), and it is used as an HTF with a maximum working temperature of 400 °C. However, one of the drawbacks of Therminol VP1 is its low thermal conductivity. In recent years it has been demonstrated that the addition of nanoparticles can improve the thermal properties of HTFs, and they are then called nanofluids. The key factor of nanofluids is their high stability over time. However, at high temperatures it is necessary to add chemically compatible surfactants that do not degrade and endow the nanofluids with stability through steric repulsion even under high temperature conditions. In this work, a carbon black/Therminol VP1 nanofluid was synthesized and stabilized using diphenyl sulfone as a stabilizer. Stability tests after thermal cycling at 400 °C showed the higher performance of this additive compared to others commonly used in the literature. Thermal conductivity, heat capacity, and viscosity of the nanofluids at 3 vol% and 5 vol% were characterized from 50 °C to 350 °C. Finally, the Mouromsteff number was calculated to determine the heat transfer enhancement provided by the use of nanofluids. [-]
Proyecto de investigación
The authors gratefully acknowledge the financial support from the Universitat Jaume I (projects P1-1B2013-43 and UJI-B2016-47), Generalitat Valenciana (project VAL-2015-01), and Ministerio de Economia y Competitividad (project ENE2016-77694-R).Drets d'accés
© 2017 Elsevier Ltd. All rights reserved.
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