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dc.contributor.author Garelli, Luciano
dc.contributor.author Rios Rodriguez, Gustavo Adolfo
dc.contributor.author Storti, Mario Alberto
dc.contributor.author Granata, Daniel
dc.contributor.author Amadei, Mauro
dc.contributor.author Rossetti, Marcelo
dc.date.available 2018-03-08T19:20:04Z
dc.date.issued 2017-09
dc.identifier.citation Garelli, Luciano; Rios Rodriguez, Gustavo Adolfo; Storti, Mario Alberto; Granata, Daniel; Amadei, Mauro; et al.; Reduced model for the thermo-fluid dynamic analysis of a power transformer radiator working in ONAF mode; Pergamon-Elsevier Science Ltd; Applied Thermal Engineering; 124; 9-2017; 855-864
dc.identifier.issn 1359-4311
dc.identifier.uri http://hdl.handle.net/11336/38291
dc.description.abstract This work introduces an extension of the semi-analytical reduced model presented in Ríos Rodriguez et al. (2016), with the aim of analyzing the thermo-fluid dynamic behavior of a power transformer radiator working in ONAF (Oil Natural Air Forced) mode, considering vertical blowing of the fans. The objective of this research paper is the development of a numerical tool to be used during the design process of power transformers in order to obtain more detailed information about the radiators performance, either they are working in ONAF or ONAN (Oil Natural Air Natural) mode. Since it is observed both in the experimental measurements and in the numerical simulations that not all the radiator panels are blown by a single fan, the reduced model here presented considers a mixed situation wherein the heat is removed by natural convection in a fraction of the radiator while in the rest the heat is removed by forced convection. As a consequence, besides adding to the set of conservation equations introduced in Ríos Rodriguez et al. (2016) those corresponding to the momentum and energy balance for considering forced heat convection transfer, there appears the need of introducing additional equations for coupling the natural and forced heat convection transfer models. The reduced model developed in this work is applied to estimate different characteristic parameters of a power transformer radiator working in ONAF mode, like the oil flow rate, dissipated power, outlet and inlet oil temperatures, among others. The computed results are compared to those obtained by CFD simulations and experimental measurements carried out on an ad-hoc workbench for validation purposes. It is found that the reduced model reproduces with acceptable accuracy the values of the most important design variables at a very low computation cost. In this manner, it can be considered as a reliable and valuable tool in the design of power transformers, allowing to carry out parametric studies.
dc.format application/pdf
dc.language.iso eng
dc.publisher Pergamon-Elsevier Science Ltd
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject COMPUTATIONAL FLUID DYNAMICS
dc.subject EXPERIMENTAL MEASUREMENTS
dc.subject HEAT DISSIPATION
dc.subject ONAF
dc.subject POWER TRANSFORMER
dc.subject.classification Ingeniería de Sistemas y Comunicaciones
dc.subject.classification Ingeniería Eléctrica, Ingeniería Electrónica e Ingeniería de la Información
dc.subject.classification INGENIERÍAS Y TECNOLOGÍAS
dc.subject.classification Ciencias de la Computación
dc.subject.classification Ciencias de la Computación e Información
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.subject.classification Ingeniería Mecánica
dc.subject.classification Ingeniería Mecánica
dc.subject.classification INGENIERÍAS Y TECNOLOGÍAS
dc.title Reduced model for the thermo-fluid dynamic analysis of a power transformer radiator working in ONAF mode
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2018-03-07T15:55:44Z
dc.journal.volume 124
dc.journal.pagination 855-864
dc.journal.pais Estados Unidos
dc.description.fil Fil: Garelli, Luciano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones en Métodos Computacionales. Universidad Nacional del Litoral. Centro de Investigaciones en Métodos Computacionales; Argentina
dc.description.fil Fil: Rios Rodriguez, Gustavo Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones en Métodos Computacionales. Universidad Nacional del Litoral. Centro de Investigaciones en Métodos Computacionales; Argentina
dc.description.fil Fil: Storti, Mario Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones en Métodos Computacionales. Universidad Nacional del Litoral. Centro de Investigaciones en Métodos Computacionales; Argentina
dc.description.fil Fil: Granata, Daniel. Tadeo Czerweny S. A.; Argentina
dc.description.fil Fil: Amadei, Mauro. Tadeo Czerweny S. A.; Argentina
dc.description.fil Fil: Rossetti, Marcelo. Tadeo Czerweny S. A.; Argentina
dc.journal.title Applied Thermal Engineering
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1359431117300868
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.applthermaleng.2017.06.098
dc.conicet.fuente Elsevier


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  • Articulos(CIMEC) [109]
    Articulos de CENTRO DE INVESTIGACION DE METODOS COMPUTACIONALES

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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)