Sistemas modulares para centrales solares eléctricas

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Pierre Elbaz, AORA SOLAR, Cadiz, Spain
Seminario Pequeñas sistemas modulares para centrales solares termoeléctricas
1_07_2010

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  • Es un esquema simplificado en el que no se ha añadido ni un lazo de almacenamiento ni el apoyo fósil adicional. El mayor reto es la concentraciónde la radiación
  • Potencia 50 MW 200 Ha de terreno ocupado 500.000 m2 de superficie de espejo
  • Potencia 10-20 MW 60-90 Ha de terreno ocupado Torre 60 160 metros de altura Superficie espejo campo heliostatos 75.000 – 150.000 m2
  • Plant efficiency Indeed the 3 loss components for the heliostat field (shading, blocking, cosine) are the major effects on the heliostat field performance. They are site specific and change with day and time of day. This is taken into account in the assessment of the plant performance. The efficiency values at design point for each of the system's main components are: Turbine (ISO, excluding Natural Gas booster) – 31% Receiver (nominal) – 85% Optical path (heliostat field and secondary optics at design, with the nominal 92% reflectivity and excluding installation inaccuracies) – 83% Total at nominal design – 22%
  • Pressure – up to 4.5bara (absolute) Outer dimensions – app. 1m diam. X 1m length Internal volume – app. 0.7m 3 (total), of which about 0.4m 3 are taken by internal components Weight – app. 400kg
  • Ventajas de la hibridación para instalación solar 􀀂 Adaptar generación a demanda de electricidad 􀀂 Estabilidad de la producción en los transitorios 􀀂 Mayor gestionabilidad 􀀂 Mayor utilización de los equipos de generación eléctrica 􀀂 Mayor rendimiento del ciclo de Rankine 􀀂 Apoyo en arranques
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