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Wind load reduction for light-weight heliostats

Pfahl, Andreas and Brucks, Antje and Holze, Carsten (2014) Wind load reduction for light-weight heliostats. Energy Procedia (49), pp. 193-200. Elsevier. DOI: doi: 10.1016/j.egypro.2014.03.021 ISSN 1876-6102

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Official URL: http://www.sciencedirect.com/science/article/pii/S1876610214004755

Abstract

At SolarPACES 2012 conference a new heliostat concept was presented. It is equipped with wireless communication, sandwich facets, wind protection devices for wind load reduction, rim drives with winch wheels and ground anchor foundation. Crucial for the development of the light-weight structures is the precise determination of the maximum loads. By full scale wind load measurements the duration of the peak loads could be determined. They are caused by gusts with such short duration that their energy can be dissipated by shock absorbers protecting the structure. Furthermore, the wind loads can be reduced by wind protection devices. For the design-relevant stow position, a reduction in structural loading of 40 % can be achieved by the wind protection devices as wind tunnel tests have shown. The reduced loading has a significant impact on the dimensioning and cost of the structure and foundation of the heliostat. The systems for wind load reduction can be used for any kind of heliostat to reduce weight and cost.

Item URL in elib:https://elib.dlr.de/91852/
Document Type:Article
Title:Wind load reduction for light-weight heliostats
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Pfahl, AndreasSF-PFS STUNSPECIFIED
Brucks, Antjeantje.brucks (at) machtwissen.deUNSPECIFIED
Holze, Carstencarsten.holze (at) machtwissen.deUNSPECIFIED
Date:2014
Journal or Publication Title:Energy Procedia
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
DOI :doi: 10.1016/j.egypro.2014.03.021
Page Range:pp. 193-200
Publisher:Elsevier
ISSN:1876-6102
Status:Published
Keywords:heliostat, wind loading, wind protection devices, shock absorber
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 - Point-Focusing Systems (old)
Location: Stuttgart
Institutes and Institutions:Institute of Solar Research > Punktfokussierende Systeme
Deposited By: Pfahl, Andreas
Deposited On:12 Nov 2014 13:29
Last Modified:06 Sep 2019 15:22

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