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Cold crucible retrofit
09 May, 2011
Cold crucible induction melter technology (CCIM) has the potential to increase the capacity of vitrification plants by enabling higher temperature, faster operations with higher reactivity fission products and a higher concentration in glass. After five years of development, a CCIM retrofitted in the Areva La Hague facility produced its first container of vitrified waste in April 2010, ramping up to full capacity in 2011. By S Naline, F Gouyaud, V Robineau, C Girold and B Carpentier.

Simplifying thermal creep
04 March, 2011
TN International (TNI) recently started a study of irradiated fuel cladding thermal creep in routine transport conditions to evaluate creep rupture risk of LWR fuel. Analytical calculations are not possible because of creep behaviour non-linearity and large number of input parameters. Finite Elements Analysis (FEA) is very time-consuming and inflexible in practice. Therefore, TN International has developed a simplified FORTRAN calculation model currently undergoing validation. By Maurice Dallongeville, Cédric Langlade and Aravinda Zéachandirin