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Test of a Mini-Mirror Array for Solar Concentrating Systems

Göttsche, Joachim and Hoffschmidt, Bernhard and Schmitz, Stefan and Sauerborn, Markus and Rebholz, Christian and Ifland, David and Badstübner, Karin and Buck, Reiner and Teufel, Edgar (2008) Test of a Mini-Mirror Array for Solar Concentrating Systems. In: EUROSUN 2008. EUROSUN 2008, 2008-10-07 - 2008-10-10, Lissabon (Portugal).

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To reduce the construction costs of solar tower power plants an innovative new mirror system with mini mirrors is on the way as an uncommon alternative to the currently used heliostats with huge surface (actual up to 120m²). An about (0.6 x 0.6) m miniature test unit has now been con-structed. This first demonstration unit at first consists of a boxed array of 25 small parallel ar-ranged mirrors with a size of (10 x 10) cm each. All mirrors are linked by an agile, crossed stick stage with an integrated drive system to move them simultaneously into all necessary positions. This specimen, developed in cooperation with all partners, will be tested in the specially pre-pared artificial sun of the SIJ in different ways under changing conditions. In a simulation an optimum field layout was calculated. With this data a theoretical comparison was made between a typical existing huge heliostat and the developed mini-mirror array unit with respect to the efficiency and cost-performance relations for a solar tower power plant.

Item URL in elib:https://elib.dlr.de/57697/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Test of a Mini-Mirror Array for Solar Concentrating Systems
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Göttsche, JoachimSolar-Institut JülichUNSPECIFIED
Hoffschmidt, BernhardSolar-Institut JülichUNSPECIFIED
Schmitz, StefanSolar-Institut JülichUNSPECIFIED
Sauerborn, MarkusSolar-Institut JülichUNSPECIFIED
Rebholz, ChristianFraunhofer-IZMUNSPECIFIED
Ifland, DavidFraunhofer-IZMUNSPECIFIED
Badstübner, KarinFraunhofer-IZMUNSPECIFIED
Date:October 2008
Journal or Publication Title:EUROSUN 2008
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:mini mirror array, solar tower, solar power, heliostat, field layout, raytracing
Event Title:EUROSUN 2008
Event Location:Lissabon (Portugal)
Event Type:international Conference
Event Dates:2008-10-07 - 2008-10-10
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 Engineering Thermodynamics > Solar Research
Deposited By: Buck, Dr.-Ing. Reiner
Deposited On:28 Jan 2009
Last Modified:27 Apr 2009 15:46

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