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Development and validation of a radial turbine efficiency and mass flow model at design and off-design conditions

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Development and validation of a radial turbine efficiency and mass flow model at design and off-design conditions

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dc.contributor.author Serrano Cruz, José Ramón es_ES
dc.contributor.author Arnau Martínez, Francisco José es_ES
dc.contributor.author García-Cuevas González, Luis Miguel es_ES
dc.contributor.author Dombrovsky, Artem es_ES
dc.contributor.author Tartoussi, H. es_ES
dc.date.accessioned 2017-05-11T11:24:35Z
dc.date.available 2017-05-11T11:24:35Z
dc.date.issued 2016-11-15
dc.identifier.issn 0196-8904
dc.identifier.uri http://hdl.handle.net/10251/80982
dc.description.abstract Turbine performance at extreme off-design conditions is growing in importance for properly computing turbocharged reciprocating internal combustion engines behaviour during urban driving conditions at current and future homologation cycles. In these cases, the turbine operates at very low flow rates and power outputs and at very high blade to jet speed ratios during transitory periods due to turbocharger wheel inertia and the high pulsation level of engine exhaust flow. This paper presents a physically based method that is able to extrapolate radial turbines reduced mass flow and adiabatic efficiency in blade speed ratio, turbine rotational speed and stator vanes position. The model uses a very narrow range of experimental data from turbine maps to fit the necessary coefficients. By using a special experimental turbocharger gas stand, experimental data have been obtained for extremely low turbine power outputs for the sake of model validation. Even if the data used for fitting only covers the turbine normal operation zone, the extrapolation model provides very good agreement with the experiments at very high blade speed ratio points; producing also good results when extrapolating in rotational speed and stator vanes position. es_ES
dc.description.sponsorship The authors of this paper wish to thank M.A. Ortiz for his invaluable help during the experimental setup and to Arnau Blasco for his hard data fitting work. This work has been partially supported by the Spanish Ministry of Economy and Competitiveness through Grant No. TRA2013-40853-R. en_EN
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation Spanish Ministry of Economy and Competitiveness TRA2013-40853-R es_ES
dc.relation.ispartof Energy Conversion and Management es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Turbocharger es_ES
dc.subject Adiabatic efficiency extrapolation es_ES
dc.subject Mean-line model es_ES
dc.subject Radial turbine simulation es_ES
dc.subject Off-design es_ES
dc.subject High blade to jet speed ratio es_ES
dc.subject.classification INGENIERIA AEROESPACIAL es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title Development and validation of a radial turbine efficiency and mass flow model at design and off-design conditions es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.enconman.2016.09.032
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingeniería del Diseño - Escola Tècnica Superior d'Enginyeria del Disseny es_ES
dc.description.bibliographicCitation Serrano Cruz, JR.; Arnau Martínez, FJ.; García-Cuevas González, LM.; Dombrovsky, A.; Tartoussi, H. (2016). Development and validation of a radial turbine efficiency and mass flow model at design and off-design conditions. Energy Conversion and Management. 128:281-293. doi:10.1016/j.enconman.2016.09.032 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.enconman.2016.09.032 es_ES
dc.description.upvformatpinicio 281 es_ES
dc.description.upvformatpfin 293 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 128 es_ES
dc.relation.senia 327757 es_ES


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