DESCRIPTION OF THE
EXTENDED LIFETIME AND ITS INFLUENCE ON THE SAFETY OPERATION AND
CONSTRUCTION MATERIALS PERFORMANCE – LONG TERM OPERATION WITH NO
COMPROMISES IN THE SAFETY
DELISA LTO project Keywords
NPP Life Time Extension
Material Swelling and Thermal Aging
Main aims of the project
increase operational safety over the lifetime and
Long-Term-Operation (LTO ) period due to the in-time prediction
and avoiding of the potential failure in LWR technologies in
general and specifically on the VVER reactors.
determine the most affected and threatened components from the LTO
point of view and describe the effect of the LTO on the material
To provide a set of recommendations for future LTO-related assessments.
To harmonize the national methodologies and to obtain the generally acceptable set of recommendations for the assessment of swelling and thermal aging.
develop a combined non-destructive and simulation tool, able to
predict the non-acceptable state of the material and able for the
assessment of the prolongation of the lifetime of the LWR NPPs.
To propose the methodology of the qualification of materials or components for the design life extension.
New video about the DELISA-LTO project.
Primary and secondary Loops components subject to swelling and thermal aging (VVER 440)