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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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ANS joins others in seeking to discuss SNF/HLW impasse
The American Nuclear Society joined seven other organizations to send a letter to Energy Secretary Christopher Wright on July 8, asking to meet with him to discuss “the restoration of a highly functioning program to meet DOE’s legal responsibility to manage and dispose of the nation’s commercial and legacy defense spent nuclear fuel (SNF) and high-level radioactive waste (HLW).”
Marie-Sophie Chenaud, Gilles Rodriguez (CEA), Jean-François Dirat, Alexandre Villedieu (Framatome)
Proceedings | 2018 International Congress on Advances in Nuclear Power Plants (ICAPP 2018) | Charlotte, NC, April 8-11, 2018 | Pages 562-570
Design studies of the ASTRID nuclear island are conducted in accordance with GEN IV reactors criteria, in particularly for safety and operability improvement.
The latest configuration of ASTRID nuclear island (including primary and secondary circuits) has been produced by Framatome at the end of 2017 corresponding to the middle of the Basic Design phase.
This paper describes the main ASTRID safety and operational requirements and the up-to-date design options, focusing on innovative options. Items addressed in the paper include: vessels (main and safety vessels), core support structures, primary pumps and pumps-diagrid connecting pipes, Above Core Structure, Intermediate Heat eXchangers, internal vessel, upper closures (slab and rotating plugs), Decay Heat Removal systems and core catcher. The global architecture of the primary and secondary circuits, in connection with the Gas Power Conversion System, is also presented.
This paper reports on the progress of the studies concerning:
- thermal hydraulics and thermal mechanics,
- evaluations of the seismic resistance,
- in-service inspection,
- qualification needs.
Lastly, it indicates the open options for materials, components and general architecture, which will continue to be studied in the second half of the Basic Design phase.