0

Full Content is available to subscribers

Subscribe/Learn More  >

Emersion Testing of Phénix Reactor Components From Liquid Sodium

[+] Author Affiliations
F. Baqué

CEA/DEN/CAD/DER, St Paul lez Durance, France

L. Martin

CEA/DEN/Phenix, Bagnols sur Ceze, France

Paper No. ICONE10-22083, pp. 205-210; 6 pages
doi:10.1115/ICONE10-22083
From:
  • 10th International Conference on Nuclear Engineering
  • 10th International Conference on Nuclear Engineering, Volume 1
  • Arlington, Virginia, USA, April 14–18, 2002
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 0-7918-3595-2 | eISBN: 0-7918-3589-8
  • Copyright © 2002 by ASME

abstract

The life extension of the Phénix LMFR involved the inspection of reactor vessel internal structures : among other techniques, a visual inspection was performed of the above core structure, fuel assembly heads and upper components. To make this inspection possible, a partial draining of the main vessel from primary liquid sodium was carried out (sodium at 180°C and argon cover at 150°C). The test program aimed at obtaining further knowledge on the process of wetting of sodium — as pure metal — on Phénix Plant assembly heads — made of stainless steel —, as well as on the internal structure weldings, was carried out from November 1998 to January 1999. The main results were as follows: • the sodium meniscus measured during sodium lowering against the non-wet vertical structures reaches 10 mm in height. On wetted structures, it reaches only 5.3 mm. • when sodium level decreases, the process if very regular. However, re-flooding is carried out in stages. • a difference of 0.2 mm between two heads altitudes is enough to observe successively each of the heads. • the quality of sodium does not modify the wetting process (in the range of cold trap temperature : 110–140°C). • the influence of lighting is important. • the visibility limit of emerging electro-eroded cracks (from 0.17 to 1.0 mm) is at 0.20 mm. • the visibility of a horizontal welding, machined or not, is good when the lighting is sufficient. • the superficial flow of sodium only modifies the wetting process for the closest heads. A final test allowed to observe that the global inclination of the assembly head mock-up does not modify the wetting process. These experimental results were part of the feasibility demonstration of the visual inspection within the actual Phénix Plant that was undertaken in 2001.

Copyright © 2002 by ASME
Topics: Testing , Sodium

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In