Central Receiver System (CRS) in the Small Solar Power Systems Project (SSPS) of the International Energy Agency (IEA)

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Attention is given to the design features and performance of the Small Solar Power Systems Project's Central Receiver System (CRS). The heliostat field used has a total reflective surface of 3655 sq m and focuses the irradiated power on an aperture plane of 9.2 sq m atop the tower. The cavity-type receiver is rated at 2840 kW at design conditions, of which 88.3 percent is absorbed by the liquid sodium heat transfer fluid as it is heated from 275 to 530 C. The major part of the CRS's Rankine power conversion cycle is a five-stage steam motor with two preheaters. Attention is given to CRS program funding responsibilities and development milestone chronology.