| Autor: |
Anfalova, O. V., Vorobjov, A. I., Gorin, N. V., Kazeev, V. G., Krayev, V. S., Rykovanov, G. N., Scherbina, A. N., Urusov, S. V., Bakanov, M. V., Morozov, B. G., Osokin, L. I. |
| Předmět: |
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| Zdroj: |
Packaging, Transport, Storage & Security of Radioactive Materials; 2006, Vol. 17 Issue 4, p203-207, 5p, 7 Black and White Photographs, 2 Charts, 1 Graph |
| Abstrakt: |
One of the most complicated tasks in spent nuclear fuel (SNF) transport arises when it is necessary to transport long length SNF without fragmentation. The length of the fuel assemblies for some reactors runs up to 15 m. In these cases the technologies applied for production of ordinary 'short' transport packaging casks (TPC) are ineffective – the greater length results in higher manufacturing costs and essential a reduction in design reliability. Russian Federal Nuclear Center (RFNC-VNIITF, Snezhinsk, Russia) and 'UralKhimMash' (Ekaterinburg) have developed a fundamentally new TPC based on the 'coil vessel' technology. The gist of this technology is in the assembling of cask body from sheet steel coils. Coils are butt welded by a unique weld method where the presence of welded joints does not reduce the whole construction durability. In comparison with a single ply structure, the multiple ply structure of cask walls has significant advantages in strength characteristics, thermophysical properties, damping capacity and reduction of catastrophic breakdown probability. The technology is comparatively inexpensive and so flexible that it can be used for production of TPC for any SNF type. A full scale head sample of transport packaging casks (TPC-84) has been designed, built and successfully tested for transport of AMB reactor type spent nuclear fuel (SNF) from Beloyarskaya Nuclear Power Plant (NPP). All tests were conducted in accordance with IAEA rules. Specifications for the cask that was tested are: 15 100 mm, diameter 1400 mm, equipped mass 90 tons, capacity 17 spent fuel assembly (SFA) (TPC for 35 SFA is still being developed). The TPC construction has Russian Federation patent. The paper contains a brief description of TPC-84 construction and its main performance attributes. Also, it contains the main results of acceptance tests are presented. [ABSTRACT FROM AUTHOR] |
| Databáze: |
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