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Absorber tube displacement in parabolic trough collectors – A review and presentation of an airborne measurement approach

Prahl, Christoph and Röger, Marc and Stanicki, Badrudin and Hilgert, Christoph (2017) Absorber tube displacement in parabolic trough collectors – A review and presentation of an airborne measurement approach. Solar Energy (157), pp. 692-706. Elsevier. DOI: 10.1016/j.solener.2017.05.023 ISSN 0038-092X

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Abstract

Parabolic trough collectors for concentrating solar sower plants are large scale optical devices with demanding requirements on optical and mechanical properties. Accurate mirror shape and absorber tube alignment are necessary to harness solar radiation with high efficiency. There are several methods to assess the shape of the mirror surface, yet there exist few approaches to effectively measure the Position of the absorber tube. This paper provides a comprehensive overview on causes and effects of absorber tube displacement and on state of the art measurement techniques. A new approach on fully automated airborne absorber tube position measurement for parabolic trough collectors is presented, which outperforms existing methods concerning speed, spatial resolution, and level of automation, thereby achieving an accuracy of about 1.5 mm in vertical and lateral direction.

Item URL in elib:https://elib.dlr.de/115041/
Document Type:Article
Title:Absorber tube displacement in parabolic trough collectors – A review and presentation of an airborne measurement approach
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Prahl, Christophchristoph.prahl (at) dlr.dehttps://orcid.org/0000-0002-8596-9050
Röger, MarcMarc.Roeger (at) dlr.dehttps://orcid.org/0000-0003-0618-4253
Stanicki, BadrudinUNSPECIFIEDUNSPECIFIED
Hilgert, ChristophChristoph.Hilgert (at) dlr.dehttps://orcid.org/0000-0002-9985-7367
Date:15 November 2017
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.2017.05.023
Page Range:pp. 692-706
Publisher:Elsevier
ISSN:0038-092X
Status:Published
Keywords:Parabolic trough, Distant observer, Unmanned aerial vehicle Absorber tube displacement
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Concentrating Solar Thermal Technology
DLR - Research area:Energy
DLR - Program:E SW - Solar and Wind Energy
DLR - Research theme (Project):E - Impact of Desert Environment
Location: Köln-Porz
Institutes and Institutions:Institute of Solar Research > Qualification
Deposited By: Kruschinski, Anja
Deposited On:20 Nov 2017 14:03
Last Modified:23 Feb 2019 00:22

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