Publication: Tecnologías de generación en plantas solares de receptor central
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2012-09
Defense date
2012-09-27
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Abstract
En este proyecto se comparan tres plantas solares de receptor central para la producción de energía eléctrica. Cada una de las plantas se diferencian en que el fluido que atraviesa el receptor es distinto, siendo en cada caso aire, sales fundidas o agua/vapor. Las plantas se compondrán de un campo solar que reflejará la radiación solar sobre el receptor situado en lo alto de una torre. A través del receptor circulará un fluido (HTF) que alimentará un ciclo Rankine mediante el cual se generará energía eléctrica. Estas plantas funcionarán sin ningún aporte energético excepto la energía solar. El análisis comparativo se realizará primeramente estudiando desde un punto de vista termodinámico cada una de las plantas con el fin de obtener el rendimiento térmico de la conversión energía solar-eléctrica. Posteriormente, se analizarán los costes de las plantas con el fin de comparar el valor del coste referido a la energía producida (Levelized Energy Cost, LEC) en cada caso. Finalmente se realizará un análisis de riesgos HAZOP al receptor solar, para comparar y evaluar los riesgos y problemas que aparecen, valorarlos frente a los resultados obtenidos tanto de rendimiento como de coste y decidir que planta es la más adecuada. __________________________________________________________________________________________________________________________
The purpose of this project is to compare three central receiver solar power plants to produce electricity. Each plant is different in that the fluid passing through the receiver is different, being in each case air, molten salts or water / steam. The plants are composed of a solar field that will reflect sunlight onto a receiver located on top of a tower. Through the receiver circulate a fluid (HTF) which feeds a Rankine cycle whereby electricity is generated. These plants operate with no energy input except solar energy. Firstly, a comparative analysis will be realized studying each plant from a thermodynamic point of view to get the thermical performance of solar-electric energy conversion. Then, once plants have been compared from a thermodynamic point of view, it will realize an analysis of plant costs in order to compare the value of the levelized energy cost (LEC) in each case. Finally, a HAZOP risk analysis will be done about solar receiver, to compare and evaluate the risks and problems that appear in each kind of receiver, evaluate them against the results obtained both performance and cost and decide which plant is most appropriate.
The purpose of this project is to compare three central receiver solar power plants to produce electricity. Each plant is different in that the fluid passing through the receiver is different, being in each case air, molten salts or water / steam. The plants are composed of a solar field that will reflect sunlight onto a receiver located on top of a tower. Through the receiver circulate a fluid (HTF) which feeds a Rankine cycle whereby electricity is generated. These plants operate with no energy input except solar energy. Firstly, a comparative analysis will be realized studying each plant from a thermodynamic point of view to get the thermical performance of solar-electric energy conversion. Then, once plants have been compared from a thermodynamic point of view, it will realize an analysis of plant costs in order to compare the value of the levelized energy cost (LEC) in each case. Finally, a HAZOP risk analysis will be done about solar receiver, to compare and evaluate the risks and problems that appear in each kind of receiver, evaluate them against the results obtained both performance and cost and decide which plant is most appropriate.
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Energía solar termoeléctrica, Plantas solares, Energía eléctrica