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Face-Down Solid Particle Receiver Using Recirculation

Röger, Marc and Amsbeck, Lars and Gobereit, Birgit and Buck, Reiner (2010) Face-Down Solid Particle Receiver Using Recirculation. In: Proceedings of SolarPACES 2010. SolarPACES. SolarPACES 2010, 21.-24. Sept. 2010, Perpignan, France.

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Official URL: http://www.solarpaces2010.org/

Abstract

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 re-circulation patterns is presented. Using smart recirculation schemes, high receiver efficiencies can be main-tained also at part load operation (100%-load ~90%; 50%-load ~86%; 20%-load ~67%). In terms of total annual solar-to-electric efficiencies the face-down geometry yields excellent 24%, although implicating a surround heliostat 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-efficient turbine processes.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Face-Down Solid Particle Receiver Using Recirculation
Authors:
AuthorsInstitution or Email of Authors
Röger, Marcmarc.roeger@dlr.de
Amsbeck, Larslars.amsbeck@dlr.de
Gobereit, Birgitbirgit.gobereit@dlr.de
Buck, Reinerreiner.buck@dlr.de
Date:September 2010
Journal or Publication Title:Proceedings of SolarPACES 2010
Refereed publication:Yes
In ISI Web of Science:No
Publisher:SolarPACES
Status:Published
Keywords:central receiver system, solid particle receiver, high-temperature receiver, recirculation, operation strategy
Event Title:SolarPACES 2010
Event Location:Perpignan, France
Event Type:international Conference
Event Dates:21.-24. Sept. 2010
Organizer:SolarPACES, CNRS
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:E SF - Solar research (old)
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Solare Hochtemperatursysteme (old)
Location: Stuttgart
Institutes and Institutions:Institute of Technical Thermodynamics > Solar Research
Deposited By: Marc Röger
Deposited On:21 Jan 2011 14:54
Last Modified:12 Dec 2013 21:13

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