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Age 60+ — Applicability of Ageing Related Data Bases and Methodologies for Ensuring Safe Operation of LWR Beyond 60 Years

[+] Author Affiliations
Susan Ortner

UK National Nuclear Lab, Abingdon, UK

Milan Brumovsky

UJV Rez a.s., Rez, Czech Republic

Paper No. PVP2017-65283, pp. V06AT06A075; 10 pages
doi:10.1115/PVP2017-65283
From:
  • ASME 2017 Pressure Vessels and Piping Conference
  • Volume 6A: Materials and Fabrication
  • Waikoloa, Hawaii, USA, July 16–20, 2017
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-5799-1
  • Copyright © 2017 by ASME

abstract

The AGE60+ project aimed towards the application of ageing related data bases and methodologies to ensuring the safe operation of Light Water Reactors beyond 60 years, and the longer-term safe storage of waste. It acted by encouraging European researchers to share data in order to maximize its utility.

As an initial step, the AGE60+ consortium considered the development and utilization of a number of databases set up to collate data and derive information relevant to the management of nuclear power plant. This review was used to identify the factors which lead to a database successfully making a useful contribution.

The AGE60+ project has been a very fruitful collaboration. It has:

• Raised the concept of sharing data and setting up databases related to the ageing of concrete in waste disposal, and received a generally positive response to this first step.

• Identified an area in which a new database would provide the opportunity to advance predictive modeling of the degradation of internals.

• Collated and reviewed data on the thermal ageing of low alloy steels.

• Identified information gaps in the area of internals degradation and the thermal ageing of low alloy steel components.

• Produced an up-to-date database on WWER-440 RPV steel embrittlement.

• Produced a new embrittlement trend curve (ETC), relating the fracture toughness transition temperature to fluence and composition for WWER-440 weld and base metal.

• Expanded and utilized a database on MnMoNi steel embrittlement.

This AGE 60+ project was realized as a part of the NUGENIA+ Call and lasted 18 months with participating organizations: UJV Rez a.s., Czech Republic, AREVA GmbH, Germany, CIEMAT, Spain, MTA EK, Hungary and NNL, UK as a leading organization.

Copyright © 2017 by ASME

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