Publication
Metodologías para la determinación de la extinción atmosférica de la radiación solar para distintos usos y casos de aplicación
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Advisor(s)
Abstract(s)
RESUMEN: La extinción atmosférica de la radiación solar es un fenómeno de gran importancia en las plantas solares de concentración de torre. Es necesario medir y controlar este parámetro para el correcto funcionamiento y rendimiento de este tipo de plantas. En este trabajo se desarrollan metodologías para determinar la extinción para distintos usos y casos de aplicación. Por un lado, es necesario conocer los niveles de extinción medios, máximos y mínimos anuales en la búsqueda de localizaciones óptimas para nuevas plantas. Para ello se ha desarrollado la metodología AOT que determina los niveles de extinción característicos de cualquier emplazamiento. Por otro lado, es necesario monitorizar los niveles de extinción en tiempo real para la operación diaria de una planta, junto con el resto de parámetros meteorológicos críticos. Con ese fin se ha desarrollado el sistema de medida CIEMAT que mide la extinción instantánea heliostato-torre con un error del 2% absoluto. Las metodologías han sido validadas en la PSA y pueden ser aplicadas en cualquier localización de interés para la energía solar de concentración.
ABSTRACT: The atmospheric extinction of solar radiation is a phenomenon of great importance in concentrating solar tower plants. It is necessary to measure and control this parameter for the correct operation and performance of this type of plants. In this work, some methodologies are developed to determine the extinction for different uses and cases of application. On the one hand, it is necessary to know the average, maximum and minimum annual extinction levels in the search for optimal locations for new plants. For this purpose, the AOT methodology has been developed to determine the characteristic extinction levels of any site. On the other hand, it is necessary to monitor the extinction levels in real time for the daily operation of a plant, together with the rest of the critical meteorological parameters. For this purpose, the CIEMAT measurement system has been developed, which measures instantaneous heliostat-tower extinction with an error of 2% absolute. The methodologies have been validated at the PSA and can be applied at any location of interest for CSP.
ABSTRACT: The atmospheric extinction of solar radiation is a phenomenon of great importance in concentrating solar tower plants. It is necessary to measure and control this parameter for the correct operation and performance of this type of plants. In this work, some methodologies are developed to determine the extinction for different uses and cases of application. On the one hand, it is necessary to know the average, maximum and minimum annual extinction levels in the search for optimal locations for new plants. For this purpose, the AOT methodology has been developed to determine the characteristic extinction levels of any site. On the other hand, it is necessary to monitor the extinction levels in real time for the daily operation of a plant, together with the rest of the critical meteorological parameters. For this purpose, the CIEMAT measurement system has been developed, which measures instantaneous heliostat-tower extinction with an error of 2% absolute. The methodologies have been validated at the PSA and can be applied at any location of interest for CSP.
Description
CIES2020 - XVII Congresso Ibérico e XIII Congresso Ibero-americano de Energia Solar
Keywords
Solar energy Solar radiation Atmosphere environment
Citation
Carra, E... [et.al.] - Metodologías para la determinación de la extinción atmosférica de la radiación solar para distintos usos y casos de aplicación. In: CIES2020: As Energias Renováveis na Transição Energética: Livro de Comunicações do XVII Congresso Ibérico e XIII Congresso Ibero-americano de Energia Solar. Helder Gonçalves, Manuel Romero (Ed.). Lisboa, Portugal: LNEG, 3-5 Novembro, 2020, p. 843-851
Publisher
LNEG - Laboratório Nacional de Energia e Geologia