A novel concept of a particle receiver for high-temperature solar applications was developed and evaluated in the present work. The so-called Centrifugal Particle Receiver (CentRec) uses small bauxite particles as absorber, heat transfer, and storage medium at the same time. Due to advantageous optical and thermal properties, the particles can be heated up to 1000 °C without sintering in the storage. High thermal efficiencies at high outlet temperatures are expected indicating a promising way for cost reduction in solar power tower applications. A prototype was designed, built, and tested in order to demonstrate the feasibility and potential of the proposed concept. Extensive high flux experiments were conducted, investigating the thermal receiver performance and efficiency. For an input flux of 670 kW m−2, the target outlet temperature of 900 °C at a receiver efficiency of about 75% was successfully demonstrated.
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August 2015
Research-Article
Prototype Testing of a Centrifugal Particle Receiver for High-Temperature Concentrating Solar Applications
Wei Wu,
Wei Wu
Institute of Solar Research,
German Aerospace Center (DLR)
,Stuttgart 70569
, Germany
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David Trebing,
David Trebing
Institute of Solar Research,
German Aerospace Center (DLR)
,Stuttgart 70569
, Germany
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Lars Amsbeck,
Lars Amsbeck
Institute of Solar Research,
German Aerospace Center (DLR)
,Stuttgart 70569
, Germany
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Reiner Buck,
Reiner Buck
1
Institute of Solar Research,
e-mail: reiner.buck@dlr.de
German Aerospace Center (DLR)
,Stuttgart 70569
, Germany
e-mail: reiner.buck@dlr.de
1Corresponding author.
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Robert Pitz-Paal
Robert Pitz-Paal
Institute of Solar Research,
German Aerospace Center (DLR)
,Cologne 51147
, Germany
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Wei Wu
Institute of Solar Research,
German Aerospace Center (DLR)
,Stuttgart 70569
, Germany
David Trebing
Institute of Solar Research,
German Aerospace Center (DLR)
,Stuttgart 70569
, Germany
Lars Amsbeck
Institute of Solar Research,
German Aerospace Center (DLR)
,Stuttgart 70569
, Germany
Reiner Buck
Institute of Solar Research,
e-mail: reiner.buck@dlr.de
German Aerospace Center (DLR)
,Stuttgart 70569
, Germany
e-mail: reiner.buck@dlr.de
Robert Pitz-Paal
Institute of Solar Research,
German Aerospace Center (DLR)
,Cologne 51147
, Germany
1Corresponding author.
Contributed by the Solar Energy Division of ASME for publication in the JOURNAL OF SOLAR ENERGY ENGINEERING: INCLUDING WIND ENERGY AND BUILDING ENERGY CONSERVATION. Manuscript received April 25, 2014; final manuscript received March 25, 2015; published online June 16, 2015. Assoc. Editor: Wojciech Lipinski.
J. Sol. Energy Eng. Aug 2015, 137(4): 041011 (7 pages)
Published Online: August 1, 2015
Article history
Received:
April 25, 2014
Revision Received:
March 25, 2015
Online:
June 16, 2015
Citation
Wu, W., Trebing, D., Amsbeck, L., Buck, R., and Pitz-Paal, R. (August 1, 2015). "Prototype Testing of a Centrifugal Particle Receiver for High-Temperature Concentrating Solar Applications." ASME. J. Sol. Energy Eng. August 2015; 137(4): 041011. https://doi.org/10.1115/1.4030657
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