Face-Down Solid Particle Receiver Using Recirculation
Röger, Marc and Amsbeck, Lars and Gobereit, Birgit and Buck, Reiner (2011) Face-Down Solid Particle Receiver Using Recirculation. Journal of Solar Energy Engineering, . ASME. DOI: 10.1115/1.4004269. ISSN 0199-6231.
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Solar thermal energy generation needs receiver technologies which can drive highly efficient turbines and decouple the collection of energy from its use by an economic storage technology. High-temperature solid particle receivers for solar tower systems with particle storage are one option. Important issues regarding high-temperature particle receivers are minimization of convective losses, no particle loss due to susceptibility to wind, and high efficiency also in part-load operation. A design approach facing these challenges is the face-down receiver using recirculation of particles. A screening performance analysis studying different recirculation patterns is presented. Using smart recirculation schemes, high receiver efficiencies can be maintained also at part-load operation (100% load ~90%; 50% load ~86%; 20% load ~67%). Simulations of the face-down geometry yield total annual solar-to-electric efficiencies of 24% using a surround field. From the analyses, it can be concluded that solid particle receivers using smart recirculation patterns are a viable receiver option for storage and high-temperature high-efficiency turbine processes.
|Title:||Face-Down Solid Particle Receiver Using Recirculation|
|Journal or Publication Title:||Journal of Solar Energy Engineering|
|In Open Access:||No|
|In ISI Web of Science:||Yes|
|Keywords:||central receiver system, solid particle receiver, high-temperature receiver, recirculation, operation strategy|
|HGF - Research field:||Energy|
|HGF - Program:||Renewable Energies|
|HGF - Program Themes:||E SF - Solar research|
|DLR - Research area:||Energy|
|DLR - Program:||E SF - Solar research|
|DLR - Research theme (Project):||E - Solare Hochtemperatursysteme (old)|
|Institutes and Institutions:||Institute of Solar Research|
|Deposited By:||Marc Röger|
|Deposited On:||15 Dec 2011 14:08|
|Last Modified:||07 Feb 2013 20:34|
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