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Analysis of the effect of saturation gas, solution temperature and concentration on OH radical formation by ultrasonic irradiation for hydrogen production optimization

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Analysis of the effect of saturation gas, solution temperature and concentration on OH radical formation by ultrasonic irradiation for hydrogen production optimization

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dc.contributor.advisor Sancho Fernández, María Pino es_ES
dc.contributor.author Erades de Quevedo, Raúl es_ES
dc.date.accessioned 2020-05-22T11:18:47Z
dc.date.available 2020-05-22T11:18:47Z
dc.date.created 2019-09-17
dc.date.issued 2020-05-22 es_ES
dc.identifier.uri http://hdl.handle.net/10251/144148
dc.description.abstract [ES] En el siguiente Trabajo de Fin de Máster se estudian los métodos dosimétricos de Weissler y Fricke para caracterizar la formación de radicales hidroxilo por radiación ultrasónica. Se emplea un transductor de frecuencia simple de 24 kHz con una amplitud al 100% . Se analizan los efectos de diferentes gases disueltos ( argón, nitrógeno y aire), así como el efecto de la temperatura inicial de la solución para analizar su impacto en la formación de radicales OH. También se analiza el efecto de la concentración de la solución. La importancia de una mayor cantidad de radicales OH radica en su impacto para la producción de hidrógeno, ya que dichas partículas pueden interactuar con otras para formar este elemento. La aplicación de ultrasonido a una solución acuosa ciertamente puede conllevar la obtención de hidrógeno, así como mejorar la transferencia de masa en un proceso electroquímico como la electrolisis. es_ES
dc.description.abstract [EN] There is an increasing need to improve the way we obtain and use energy, as with traditional methods planet Earth is becoming less and less habitable. In this regard, the use of hydrogen as a clean energy vector has acquired special relevance nowadays. The production of hydrogen is still expensive and mostly not environmentally friendly; however, it is expected to change in the coming years. One of the areas being investigated for a better and cleaner production of hydrogen is the use of power ultrasound. Although this technology still needs further research, it has already shown promising results. The application of ultrasound to an aqueous solution can certainly lead to synthesize hydrogen, as well as improving mass transfer in an electrochemical process such as electrolysis. In this master’s thesis, Weissler and Fricke dosimetry methods are used in order to characterize the formation of hydroxyl radicals by ultrasonic radiation using a simple 24 kHz frequency ultrasound generator. The importance of a greater quantity of OH radicals lies in their impact in hydrogen production, since these particles can interact with others to form this element. The effects of different dissolved gases (argon, nitrogen and air) are analyzed, as well as the effect of the initial temperature of the solution with the purpose to analyze its impact on the formation of OH radicals. The effect of the concentration of KI with the Weissler dosimetry is also analyzed. It is discussed the most suitable combination of these parameters that enhance OH radical obtention and potentially, hydrogen production. An overview is also provided about the main mechanisms of power ultrasound and its relation to sonochemical production of hydrogen, including an outline of the main dosimetry methods. 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 Química es_ES
dc.subject Sonoquímica es_ES
dc.subject Weissler es_ES
dc.subject Fricke es_ES
dc.subject Ultrasonido es_ES
dc.subject OH es_ES
dc.subject Radical es_ES
dc.subject Hidrógeno es_ES
dc.subject Chemistry es_ES
dc.subject Sonochemistry es_ES
dc.subject Ultrasound es_ES
dc.subject Hydrogen es_ES
dc.subject.classification INGENIERIA QUIMICA es_ES
dc.subject.other Máster Universitario en Ingeniería Industrial-Màster Universitari en Enginyeria Industrial es_ES
dc.title Analysis of the effect of saturation gas, solution temperature and concentration on OH radical formation by ultrasonic irradiation for hydrogen production optimization es_ES
dc.title.alternative Análisis del efecto del gas de saturación, temperatura de la solución y concentración en la obtención de radicales OH por radiación ultrasónica para la optimización en la producción de hidrógeno. es_ES
dc.type Tesis de máster es_ES
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Química y Nuclear - Departament d'Enginyeria Química i Nuclear es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros Industriales - Escola Tècnica Superior d'Enginyers Industrials es_ES
dc.description.bibliographicCitation Erades De Quevedo, R. (2019). Analysis of the effect of saturation gas, solution temperature and concentration on OH radical formation by ultrasonic irradiation for hydrogen production optimization. http://hdl.handle.net/10251/144148 es_ES
dc.description.accrualMethod TFGM es_ES
dc.relation.pasarela TFGM\112895 es_ES


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