elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Autonomous light-weight heliostat with rim drives

Pfahl, Andreas and Randt, Michael and Holze, Carsten and Unterschütz, Stefan (2013) Autonomous light-weight heliostat with rim drives. Solar Energy (92), pp. 230-240. Elsevier. DOI: 10.1016/j.solener.2013.03.005 ISSN 0038-092X

[img] PDF
1MB

Official URL: http://www.sciencedirect.com/science/article/pii/S0038092X13001023

Abstract

Several approaches for cost reduction of heliostats, which fit well to each other, are combined to a new heliostat concept to achieve the current challenging cost objectives: 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 compromised 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/82362/
Document Type:Article
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
Holze, Carstencarsten.holze (at) machtwissen.deUNSPECIFIED
Unterschütz, Stefanstefan.unterschuetz (at) googlemail.comUNSPECIFIED
Date:2013
Journal or Publication Title:Solar Energy
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1016/j.solener.2013.03.005
Page Range:pp. 230-240
Publisher:Elsevier
ISSN:0038-092X
Status:Published
Keywords:Wind load reduction; Autonom ous heliostat with rim drives; Sandwich facet; Ground anchor foundation
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 11:25
Last Modified:31 Jul 2019 19:40

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.