Institute of Solar Research
Area of research:
Diploma & Master Thesis
The Solar Tower Systems Group of DLR’s Institute of Solar Research has been doing extensive research on Central Receivers to develop cost-effective and commercializable technologies. Thanks to its high heat storage capabilities and durability at elevated temperatures, particle based solar receivers draw attention of many research groups. DLR’s Institute of Solar Research has designed, patented and developed the Centrifugal Solar Receiver (CentRec®), which has experimentally proven capability to provide 965 °C of particle outlet temperature with a 2.5 MWth-prototype (www.dlr.de/centrec).
The focus of this work is to further develop the available experimental test set-up and to conduct experiments with the particle based centrifugal solar receiver. In the CentRec® receiver, the ceramic particles with various diameters (0.3 mm – 1 mm) are moving in an inclined rotating drum, and exposed to concentrated solar radiation. Extensive experimental test campaigns have highlighted improvement potential in the two areas of particle feeding into the receiver and collection of hot particles from the receiver.
The main objective of this study to explore improvements and / or new designs for the particle feeding and collection. Some ideas to this end exist within in the team and development of new solutions is encouraged. An experimental test setup is available to be modified to test and validate concepts. In the development of concepts discrete element models (DEM) can be used (based on existing experience) or own models developed.
literature review of particle-based solar receiver systems and their experimental test set-ups adapt or create a DEM-model of the particle receiver conceptual design of solutions for particle feeding and collection system conducting experiments to investigate performance of proposed designs