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Performance of elastomer seals in transport and storage casks

  • Elastomer seals are widely used as barrier seals in containers for low and intermediate level radioactive waste and for spent fuel transportation casks. In addition, they are also used for spent fuel storage and transportation casks (dual purpose casks (DPC)) as auxiliary seals to allow leakage rate measurements of metal barrier seals for demonstration of their proper assembling conditions. Depending on the area of use, the rubber materials have to demonstrate proper sealing performance with regard to mechanical, thermal, and environmental conditions as well as irradiation during the entire operation period. Concerning DPC, degradation effects should be limited in a way that, for example, effects from potentially released decomposition elements may not harm e.g. metal barrier seals. Leakage rate measurements should be possible also after long interim storage periods prior to subsequent transportation. Because of the complex requirements resulting from the various applications ofElastomer seals are widely used as barrier seals in containers for low and intermediate level radioactive waste and for spent fuel transportation casks. In addition, they are also used for spent fuel storage and transportation casks (dual purpose casks (DPC)) as auxiliary seals to allow leakage rate measurements of metal barrier seals for demonstration of their proper assembling conditions. Depending on the area of use, the rubber materials have to demonstrate proper sealing performance with regard to mechanical, thermal, and environmental conditions as well as irradiation during the entire operation period. Concerning DPC, degradation effects should be limited in a way that, for example, effects from potentially released decomposition elements may not harm e.g. metal barrier seals. Leakage rate measurements should be possible also after long interim storage periods prior to subsequent transportation. Because of the complex requirements resulting from the various applications of containers for radioactive waste and spent nuclear fuel, BAM has initiated several test programmes for investigating the behaviour of elastomer seals. In this contribution the current status is described and first results are discussed.zeige mehrzeige weniger

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Autor*innen:Matthias JaunichORCiD, Mike Weber, Anja KömmlingORCiD, Uwe Zencker, Dietmar Wolff, Holger Völzke
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Graue Literatur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):International conference on management of spent fuel from nuclear power reactors: An integrated approach to the back end of the fuel cycle
Jahr der Erstveröffentlichung:2015
Herausgeber (Institution):International Atomic Energy Agency (IAEA)
Erste Seite:1
Letzte Seite:8
Freie Schlagwörter:Ageing; Elastomer; Glass-rubber transition; Irradiation; Material model
Veranstaltung:International conference on management of spent fuel from nuclear power reactors: An integrated approach to the back end of the fuel cycle
Veranstaltungsort:Vienna, Austria
Beginndatum der Veranstaltung:15.06.2015
Enddatum der Veranstaltung:19.06.2015
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:20.02.2016
Referierte Publikation:Nein
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