Development of Software Package for Managing the Lifetime of Mechanical Elements of Nuclear Power Plants under Flow-Accelerated Corrosion (FAC)

Abstract

This article focuses on results of developing the system for managing the life time of equipment and pipelines of nuclear power plants (NPP). The system is designed to calculate the intensity of Flow-Accelerated Corrosion (FAC) and a residual lifetime of elements. In Russia, the development of software for calculating the speed of FAC and value of thinning of the walls of pipelines of NPP has been carried out since the early 90s of the last century. The existing version of the software package for calculating the characteristics of FAC is implemented of loosely coupled software modules (standalone programs). There is no single concept of architecture, therefore, any modernization and addition of functionality comes down to rewriting old programs or writing new programs, loosely connected with the old ones. This article contains results of research of the feasibility of implementing a software package for monitoring FAC in the form of a set of plug-in modules. This approach allows one to easily add new functionality without overwriting the existing kernel by adding or removing modules. Based on the general concept, several modules for calculating the characters of FAC and visualizing the control data have been developed.