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Autonomous light-weight heliostat with rim drives

Pfahl, Andreas and Randt, Michael and Kubisch, Stephan and Holze, Carsten and Brüggen, Helmut (2012) Autonomous light-weight heliostat with rim drives. In: Proceedings SolarPACES 2012. SolarPACES 2012, 11.-14. Sept. 2012, Marrakesch, Marokko.

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Abstract

To achieve the current challenging cost objectives, several approaches for cost reduction, which fit well to each other, are combined: The wind loads are reduced by appropriate manipulators which reduces weight and cost of the heliostat structure and the ground anchor foundation. Laminated mirror facets are of high reflectivity and shape accuracy and of low weight. The low weight is advantageous for the dimensioning of the bearings and regarding energy consumption. Energy consumption is further reduced by a highly efficient drive train. Thus small capacity of the wireless energy supply of the autonomous heliostat is sufficient which reduces significantly its cost. By the combination of horizontal primary axis with rims and winch wheels a cheap and precise solution for the drives was found. Ray tracing calculations show that the losses due to the reduced angle range are negligible. With the new heliostat concept the current cost goals seem to be achievable.

Item URL in elib:https://elib.dlr.de/82363/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Autonomous light-weight heliostat with rim drives
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Pfahl, AndreasSF-PN STUNSPECIFIED
Randt, Michaelrandt (at) trinamic.comUNSPECIFIED
Kubisch, Stephankubisch (at) trinamic.comUNSPECIFIED
Holze, Carstencarsten.holze (at) machtwissen.deUNSPECIFIED
Brüggen, Helmuthelmut.brueggen (at) toughtrough.comUNSPECIFIED
Date:September 2012
Journal or Publication Title:Proceedings SolarPACES 2012
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:central receiver, wind load reduction, autonomous heliostat, rim drives, sandwich facet, ground anchor foundation
Event Title:SolarPACES 2012
Event Location:Marrakesch, Marokko
Event Type:international Conference
Event Dates:11.-14. Sept. 2012
Organizer:SolarPACES
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Concentrating Solar Systems (old)
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Punktfokussierende Systeme (old)
Location: Stuttgart
Institutes and Institutions:Institute of Solar Research > Punktfokussierende Systeme
Deposited By: Pfahl, Andreas
Deposited On:23 Jul 2013 11:26
Last Modified:31 Jul 2019 19:40

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