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Fused silica windows for solar receiver applications

Hertel, Johannes and Uhlig, Ralf and Söhn, Matthias and Schenk, Christian and Helsch, Gundula and Bornhöft, Hansjörg (2015) Fused silica windows for solar receiver applications. In: Proceedings SolarPACES 2015 Conference, 1743. AIP Conference Proceedings, 13.-16. Okt. 2015, Cape Town, South Africa. DOI: 10.1063/1.4949072

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Official URL: http://scitation.aip.org/content/aip/proceeding/aipcp/10.1063/1.4949072

Abstract

A comprehensive study of optical and mechanical properties of quartz glass (fused silica) with regard to application in high temperature solar receivers is presented. The dependence of rupture strength on different surface conditions as well as high temperature is analyzed, focussing particularly on damage by devitrification and sandblasting. The influence of typical types of contamination in combination with thermal cycling on the optical properties of fused silica is determined. Cleaning methods are compared regarding effectiveness on contamination-induced degradation for samples with and without antireflective coating. The FEM-aided design of different types of receiver windows and their support structure is presented. A large-scale production process has been developed for producing fused silica dome shaped windows (pressurized window) up to a diameter of 816 mm. Prototypes were successfully pressure-tested in a test bench and certified according to the European Pressure Vessel Directive.

Item URL in elib:https://elib.dlr.de/104643/
Document Type:Conference or Workshop Item (Speech)
Title:Fused silica windows for solar receiver applications
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hertel, JohannesJohannes.Hertel (at) dlr.deUNSPECIFIED
Uhlig, Ralfralf.uhlig (at) dlr.deUNSPECIFIED
Söhn, MatthiasHeraeus Quarzglas GmbH & Co. KGUNSPECIFIED
Schenk, ChristianHeraeus Quarzglas GmbH & Co. KGUNSPECIFIED
Helsch, GundulaTU Clausthal-ZellerfeldUNSPECIFIED
Bornhöft, HansjörgTU Clausthal-ZellerfeldUNSPECIFIED
Date:2015
Journal or Publication Title:Proceedings SolarPACES 2015 Conference
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:1743
DOI :10.1063/1.4949072
Series Name:AIP Conference Proceedings
Status:Published
Keywords:Bruchversuche, Quarzglas, Receiver-Fenster
Event Title:AIP Conference Proceedings
Event Location:Cape Town, South Africa
Event Type:international Conference
Event Dates:13.-16. Okt. 2015
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Concentrating Solar Thermal Technology
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Advanced Heat Transfer Media (old)
Location: Stuttgart
Institutes and Institutions:Institute of Solar Research > Punktfokussierende Systeme
Deposited By: Uhlig, Tamara
Deposited On:20 Jul 2016 14:26
Last Modified:31 Jul 2019 20:01

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