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Study of the influence of static mixers of evaporation and distribution of injected Urea in SCR systems

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Study of the influence of static mixers of evaporation and distribution of injected Urea in SCR systems

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dc.contributor.advisor Teodorczyk, Andrzej es_ES
dc.contributor.author Portillo Alcón, Alejandro del es_ES
dc.date.accessioned 2019-11-18T15:52:56Z
dc.date.available 2019-11-18T15:52:56Z
dc.date.created 2015-07
dc.date.issued 2019-11-18
dc.identifier.uri http://hdl.handle.net/10251/131215
dc.description.abstract [EN] Nitrogen oxides are an important pollutant in industrialized countries. A widely used technology to reduce NOx emissions is Selective Catalytic Reduction (SCR) with ammonia as a reducing agent. SCR has been applied in power plant for several decades. Recently SCR has been established in heavy duty engines used in trucks. It is likely to become a key technology in passenger cars applications which may be unavoidable due to the latest Euro VI legislation. This miniaturization of SCR systems cause some additional problems. From among this difficulties one of the biggest is limited space and therefore time which is available to urea evaporation and decomposition. This obstacle is overcoming by using static mixers before SCR catalyst. Influence of mixers geometry is the aim of this thesis. During the study various types of geometry have been analyzed. For all of them influence of mixer construction on NH3 uniformity, pressure drop and wall film formation has been checked. Influence of mixer position (first geometry), trumpet construction and injector inclination (second geometry) has been also calculated. As a result of several modifications large improvement of system performance has been achieved. In first case trough base mixer modification NH3 uniformity has been increased by 12 percentage points and film formation has been decreased by half. Using the same mixer combined with changes in injector inclination helped to increase NH3 uniformity by 14p.p and film formation by more than half in second case. es_ES
dc.format.extent 76 es_ES
dc.language Inglés es_ES
dc.publisher Universitat Politècnica de València es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Selective catalytic reduction (SCR) es_ES
dc.subject Nitrogen oxides es_ES
dc.subject Urea es_ES
dc.subject NH3 es_ES
dc.subject Static mixers es_ES
dc.subject.other Grado en Ingeniería Aeroespacial-Grau en Enginyeria Aeroespacial es_ES
dc.title Study of the influence of static mixers of evaporation and distribution of injected Urea in SCR systems es_ES
dc.type Proyecto/Trabajo fin de carrera/grado es_ES
dc.rights.accessRights Cerrado 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 Portillo Alcón, AD. (2015). Study of the influence of static mixers of evaporation and distribution of injected Urea in SCR systems. Universitat Politècnica de València. http://hdl.handle.net/10251/131215 es_ES
dc.description.accrualMethod Archivo delegado es_ES


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