Time Limited Ageing Analyses (TLAAs) review in Laguna Verde Nuclear Power Plant

Mexico

IDOM acted in Laguna Verde NPP as a specialized consultancy with regard to fracture mechanics, fatigue and structural integrity applied to the evaluation of the Time Limited Aging Analysis (TLAA) of the plant. The services offered by IDOM were the review of technical information and documentation, the identification of the specific requirements of the plant and the elaboration of a working plan and methodology. During the visit to the plant, IDOM was accompanied by delegates from different organizations such as Instituto Nacional de Investigaciones Nucleares (ININ) and CFE. Several aspects which needed to be improved were detected after reviewing the specific calculations of the components. The most relevant aspects were: transients and usage factors (CUF, Cumulative Usage Factor) of different Structures, Systems and Components (SSC).