Publication: Estudio de varias configuraciones de plantas termosolares con tecnología de receptor central y diseño de una central con configuración multitorre
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2014-10
Defense date
2014-10-02
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Abstract
El presente trabajo fin de grado tiene como objetivo el diseño de una central de concentración con tecnología multitorre que opera con sales fundidas y dispone de almacenamiento térmico. Se realizará un análisis de las distintas configuraciones en función de la extensión del campo solar, del número de receptores y del número de paneles por receptor.
La realización de los cálculos se ha llevado a cabo con la ayuda del software matemático MATLAB R2010a. Los distintos códigos y funciones desarrollados en el trabajo permiten la obtención de los gastos másicos que circulan por los receptores, la temperatura que alcanzan las sales fundidas y la que soporta la superficie exterior de los tubos de forma horaria. También se calcula la distribución de los heliostatos en el terreno seleccionado y las eficiencias de los mismos.
A partir de los datos de radiación y meteorológicos del lugar seleccionado para la central, en la localidad de La Luisiana, Andalucía, se ha calculado el rendimiento total, en función de los rendimientos ópticos, el rendimiento del receptor, el rendimiento del ciclo de potencia y el rendimiento de pérdidas por calor involucrados, así como la producción energética diaria, mensual y anual de la central. Por último, se ha realizado un análisis de ahorro de emisiones de CO2 en comparación con una central de ciclo combinado y se ha obtenido un valor estimado del coste de producción de la energía eléctrica.
The present final thesis aims to design a concentration solar power plant with multitower technology that operates with molten salt and with a thermal storage system. An analysis of different layouts involving solar field extension, number of receivers and panels in each side of them, will be developed. To perform the calculations it has been used the mathematical software MATLAB R2010a. Computer codes and functions allow to obtain the mass flow through the receivers, the temperature that reach the molten salt and the temperature born by the external surface of the tubes in an hour basis. Furthermore, the distribution of the heliostats on the selected field extension and the optical efficiency of them are calculated. From radiation and meteorogical information of the selected place for the power plant, in La Luisiana town, located in Andalucia, the calculation of the total efficiency is based on optical, receiver, power cycle and loss of heat efficiencies involved, as well as the daily, monthly and annual electricity production. Finally, an analysis of the environmental impact of the operation of the plant in the place selected is done, comparing the results with a combined cycle plant. Then, the electricity cost of production is calculated.
The present final thesis aims to design a concentration solar power plant with multitower technology that operates with molten salt and with a thermal storage system. An analysis of different layouts involving solar field extension, number of receivers and panels in each side of them, will be developed. To perform the calculations it has been used the mathematical software MATLAB R2010a. Computer codes and functions allow to obtain the mass flow through the receivers, the temperature that reach the molten salt and the temperature born by the external surface of the tubes in an hour basis. Furthermore, the distribution of the heliostats on the selected field extension and the optical efficiency of them are calculated. From radiation and meteorogical information of the selected place for the power plant, in La Luisiana town, located in Andalucia, the calculation of the total efficiency is based on optical, receiver, power cycle and loss of heat efficiencies involved, as well as the daily, monthly and annual electricity production. Finally, an analysis of the environmental impact of the operation of the plant in the place selected is done, comparing the results with a combined cycle plant. Then, the electricity cost of production is calculated.
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Energías renovables, Plantas termosolares, Centrales térmicas, Eficiencia energética