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A Note on Bubble Sizes in Subcooled Flow Boiling at Low Velocities in Internal Combustion Engine-Like Conditions

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A Note on Bubble Sizes in Subcooled Flow Boiling at Low Velocities in Internal Combustion Engine-Like Conditions

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dc.contributor.author Torregrosa, A. J. es_ES
dc.contributor.author Broatch, A. es_ES
dc.contributor.author Olmeda, P. es_ES
dc.contributor.author Cornejo-Luna, Omar es_ES
dc.date.accessioned 2017-07-19T11:56:36Z
dc.date.available 2017-07-19T11:56:36Z
dc.date.issued 2016-09
dc.identifier.issn 1735-3572
dc.identifier.uri http://hdl.handle.net/10251/85454
dc.description.abstract [EN] Current trends in engine design indicate the necessity to take advantage of the highest rates of heat transfer associated with nucleate boiling, mostly at high engine loads. When used in conjunction with advanced thermal management strategies, subcooled boiling may take place at very low velocities, for which little information is available, and in ducts with small cross-sectional area, so that undesired effects of the relative sizes of ducts and bubbles may appear. In this paper, experiments on subcooled boiling flow at low velocities and engine-like temperature conditions were conducted with a usual engine coolant. A high-speed photographic camera was used to collect images of the detached vapor bubbles, and the microscopic characteristics of the heating surface were determined. Experimental results for the mean values show acceptable agreement with the results of a mechanistic radius model, when assuming that departure and lift-of radius are related through the flow boiling suppression factor. Additionally, the results obtained are compatible with the sizes of the nucleation sites estimated from the surface characterization. The results obtained for the size distribution are consistent with those found in the literature. es_ES
dc.description.sponsorship The equipment used in this work has been partially supported by FEDER project funds “Dotacion de infraestructuras científico tecnicas para el Centro Integral de Mejora Energetica y Medioambiental de Sistemas de Transporte (CiMeT), (FEDER-ICTS-2012-06)”, framed in the operational program of unique scientific and technical infrastructure of the Ministry of Science and Innovation of Spain. O. Cornejo is indebted to Senacyt Panama for their support. The authors wish to thank Dr. D. Busquets and Dr. E. Rayon their kind cooperation in the surface ´ characterization and in the interpretation of its results.
dc.language Inglés es_ES
dc.publisher Isfahan University of Technology es_ES
dc.relation MICINN/ICTS-2012-06
dc.relation.ispartof Journal of applied fluid mechanics es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Engine cooling es_ES
dc.subject Bubble radius es_ES
dc.subject Bubble size distribution es_ES
dc.subject Heater surface structure es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title A Note on Bubble Sizes in Subcooled Flow Boiling at Low Velocities in Internal Combustion Engine-Like Conditions es_ES
dc.type Artículo es_ES
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario CMT-Motores Térmicos - Institut Universitari CMT-Motors Tèrmics es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Máquinas y Motores Térmicos - Departament de Màquines i Motors Tèrmics es_ES
dc.description.bibliographicCitation Torregrosa, AJ.; Broatch, A.; Olmeda, P.; Cornejo-Luna, O. (2016). A Note on Bubble Sizes in Subcooled Flow Boiling at Low Velocities in Internal Combustion Engine-Like Conditions. Journal of applied fluid mechanics. 9(5):2321-2332. http://hdl.handle.net/10251/85454 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://bit.ly/2vBtgS3 es_ES
dc.description.upvformatpinicio 2321 es_ES
dc.description.upvformatpfin 2332 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 9 es_ES
dc.description.issue 5 es_ES
dc.relation.senia 323572 es_ES
dc.identifier.eissn 1735-3645
dc.contributor.funder Ministerio de Ciencia e Innovación


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