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|Title:||New Methods for Evaluation of Spent Fuel Condition during Long-Term Storage in Slovakia|
|Authors:||MIKLOS Marek; KRSJAK VLADIMIR|
|Citation:||Science and Technology of Nuclear Installations vol. 2009 p. 459139 (1-5)|
|Publisher:||Hindawi Publishing Corporation|
|Type:||Articles in periodicals and books|
|Abstract:||Experiences with an advanced spent nuclear fuel management in Slovakia are presented in this paper. The evaluation and monitoring procedures are based on practices at the Slovak wet interim spent fuel storage facility in NPP Jaslovské Bohunice. Since 1999, leak testing of WWER-440 fuel assemblies are provided by special leak tightness detection system "Sipping in pool" delivered by Framatomeanp with external heating for the precise defects determination. In 2006, a new inspection stand "SVYP-440" for monitoring of spent nuclear fuel condition was inserted. This stand has the possibility to open WWER-440 fuel assemblies and examine fuel elements. Optimal ways of spent fuel disposal and monitoring of nuclear fuel condition were designed. With appropriate approach of conservativeness, new factor for specifying spent fuel leak tightness is introduced in the paper. By using computer simulations (based on SCALE 4.4a code) for fission products creation and measurements by system "Sipping in pool", the limit values of leak tightness were established.|
|JRC Institute:||Institute for Energy and Transport|
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