Publication: Estudio termodinámico del tanque de almacenamiento de sales en una central termosolar
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2014
Defense date
2014-10-01
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Abstract
El proyecto realizado se centra en el estudio del sistema de almacenamiento de energía en forma de calor por medio de dos tanques de sales solares fundidas, todo ello aplicado a una planta termosolar de receptor central. La central diseñada se ha ubicado en las Islas Canarias (España), concretamente se ha seleccionado como la ubicación idónea la Isla de Fuerteventura por tres motivos: gran cantidad de radiación solar directa, las características de su parque de generación de energía eléctrica y sus condiciones climatológicas. Todos los resultados han sido calculados para una central termosolar que implementa un ciclo termodinámico tipo Rankine con distintos valores de potencia eléctrica generada. Además, se estudia de qué forma afectan tanto a la producción de energía como a la cantidad de energía almacenada las distintas condiciones climatológicas. Entre el resto de resultados obtenidos, cabe destacar los relativos al dimensionado del sistema de almacenamiento y a las pérdidas de energía derivadas de los tanques. Asimismo, se incluye un estudio medioambiental que cuantifica la cantidad de emisiones de gases contaminantes reducidas.
Tras la realización del proyecto se concluye que incorporar un sistema de almacenamiento a una central termosolar mejora la operación de la central, puesto que permite acoplar la producción de energía a la demanda de los consumidores y eliminar la incertidumbre asociada a la energía procedente del Sol.
The present project is focused in the heat energy storage system study by means of two tanks of molten solar salts, all of this applied to a central receiver solar thermal power plant. The plant designed is located in Canary Islands (Spain), specifically Fuerteventura Island has been selected as the ideal location for three main reasons: large amount of direct solar radiation, its features for electricity generation and its weather conditions. The complete results have been calculated for a solar thermal power plant that implements a Rankine thermodynamic cycle with different values of electric power generated. Furthermore, the project investigates how the different weather conditions affect in the energy production and as well to the amount of stored energy. Together with the rest of results, those related with the dimensioning of the storage system and the energy losses arising from the tanks are highly remarkable. In addition, the project includes an environmental study quantifying the amount of emissions of polluting gases have been reduced. The main conclusion after the project completion is that a storage system addition to a solar thermal power plant improves the whole plant operation, since it allows the adaptation of energy production to consumer demand and it avoids the uncertainty from Sun energy.
The present project is focused in the heat energy storage system study by means of two tanks of molten solar salts, all of this applied to a central receiver solar thermal power plant. The plant designed is located in Canary Islands (Spain), specifically Fuerteventura Island has been selected as the ideal location for three main reasons: large amount of direct solar radiation, its features for electricity generation and its weather conditions. The complete results have been calculated for a solar thermal power plant that implements a Rankine thermodynamic cycle with different values of electric power generated. Furthermore, the project investigates how the different weather conditions affect in the energy production and as well to the amount of stored energy. Together with the rest of results, those related with the dimensioning of the storage system and the energy losses arising from the tanks are highly remarkable. In addition, the project includes an environmental study quantifying the amount of emissions of polluting gases have been reduced. The main conclusion after the project completion is that a storage system addition to a solar thermal power plant improves the whole plant operation, since it allows the adaptation of energy production to consumer demand and it avoids the uncertainty from Sun energy.
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Centrales termosolares, Almacenamiento, Tanques de almacenamiento, Energía solar, Sistemas eléctricos, Centrales térmicas