Sten Lundberg - Academia.edu (original) (raw)
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In 2018 thirteen Special Fuel Rods were transported from Brunsbüttel to the Swedish Hot Cell labo... more In 2018 thirteen Special Fuel Rods were transported from Brunsbüttel to the Swedish Hot Cell laboratory at Studsvik for a Post-Irradiation Examination (PIE). The reason for this was to gain more valuable measurement data information for the dry long-term storage database. The planning for the transport, performed by DAHER NT using their NCS-45 cask, started already in 2016. This paper gives a characterization of the Special Fuel Rods and describes the examination program. Twelve of the rods are failed from debris fretting and possible Pellet Clad Interaction (PCI). Therefore, topics such as ingress of water causing residual moisture in the rods, cladding embrittlement and radial reorientation of the hydride of the rods are presented. Moreover, a summary of the efforts is given for the handling (loading and transport) of the Special Fuel Rods and the numerous licenses that are required for such a project.
In 2018 thirteen Special Fuel Rods were transported from Brunsbüttel to the Swedish Hot Cell labo... more In 2018 thirteen Special Fuel Rods were transported from Brunsbüttel to the Swedish Hot Cell laboratory at Studsvik for a Post-Irradiation Examination (PIE). The reason for this was to gain more valuable measurement data information for the dry long-term storage database. The planning for the transport, performed by DAHER NT using their NCS-45 cask, started already in 2016. This paper gives a characterization of the Special Fuel Rods and describes the examination program. Twelve of the rods are failed from debris fretting and possible Pellet Clad Interaction (PCI). Therefore, topics such as ingress of water causing residual moisture in the rods, cladding embrittlement and radial reorientation of the hydride of the rods are presented. Moreover, a summary of the efforts is given for the handling (loading and transport) of the Special Fuel Rods and the numerous licenses that are required for such a project.