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On the applicability of cold acoustic measurements to high-amplitude hot pulsating flows

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On the applicability of cold acoustic measurements to high-amplitude hot pulsating flows

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dc.contributor.author Torregrosa, A. J. es_ES
dc.contributor.author Piqueras, P. es_ES
dc.contributor.author Sanchis Pacheco, Enrique José es_ES
dc.contributor.author Redondo-Navarro, Álvaro Rafael es_ES
dc.date.accessioned 2023-06-23T18:01:45Z
dc.date.available 2023-06-23T18:01:45Z
dc.date.issued 2023-03 es_ES
dc.identifier.issn 0814-6039 es_ES
dc.identifier.uri http://hdl.handle.net/10251/194504
dc.description.abstract [EN] The experimental characterization of the acoustic characteristics of engine exhaust devices is usually carried out through measurements in cold conditions, due to the intrinsic difficulties associated with proper temperature control in an acoustic rig. While those measurements may be sufficiently indicative for the cold end of the exhaust (the silencing elements) their significance for the hot end (the aftertreatment system) is more doubtful, as a result of the high temperatures and, eventually, the higher amplitude of pressure waves acting on the system. In this paper, a direct assessment is provided on the significance of acoustic measurements in cold conditions for representing the actual behaviour of an aftertreatment system in a hot pulsating, engine-like flow. Making use of wave decomposition techniques, the measured characterization was convoluted with the hot-flow excitation and the device responses were directly compared. The results indicate that, while it is not possible to fully reproduce the behaviour observed in hot pulsating flow, the tendencies are reproduced, at least qualitatively. In particular, the effect of soot loading is fairly reproduced. es_ES
dc.description.sponsorship This research has been supported by Grant PID2020114289RB-I00 funded by MCIN/AEI/https://doi.org/10.13039/501100011033.Alvaro Redondo is supported by Universitat Politecnica de Valencia through the Programa de Ayudas de Investigacion y Desarrollo (PAID-01-19) which grants his predoctoral contract. es_ES
dc.language Inglés es_ES
dc.publisher Springer-Verlag es_ES
dc.relation.ispartof Acoustics Australia es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Acoustics es_ES
dc.subject Experimental characterization es_ES
dc.subject Pulsating flow es_ES
dc.subject Aftertreatment system es_ES
dc.subject Temperature es_ES
dc.subject Wave decomposition es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title On the applicability of cold acoustic measurements to high-amplitude hot pulsating flows es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1007/s40857-022-00282-5 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-114289RB-I00/ES/INTEGRACION DE SISTEMAS DE POST-TRATAMIENTO DE GASES DE ESCAPE MULTIFUNCIONALES EN VEHICULOS DE PROPULSION HIBRIDA/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/UPV//PAID-01-19/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Politécnica Superior de Alcoy - Escola Politècnica Superior d'Alcoi 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 Torregrosa, AJ.; Piqueras, P.; Sanchis Pacheco, EJ.; Redondo-Navarro, ÁR. (2023). On the applicability of cold acoustic measurements to high-amplitude hot pulsating flows. Acoustics Australia. 51(1):115-128. https://doi.org/10.1007/s40857-022-00282-5 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1007/s40857-022-00282-5 es_ES
dc.description.upvformatpinicio 115 es_ES
dc.description.upvformatpfin 128 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 51 es_ES
dc.description.issue 1 es_ES
dc.relation.pasarela S\478757 es_ES
dc.contributor.funder AGENCIA ESTATAL DE INVESTIGACION es_ES
dc.contributor.funder Universitat Politècnica de València es_ES
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