A centralized on-line monitoring system for damage assessment of critical components of multiple thermal power plant units

A centralized version of on-line structural safety evaluation system (BOSSES) has been installed to monitor damage due to creep and fatigue in various critical plant components of multiple thermal power plants. This can be achieved from a centralized BOSSES server. This version is advancement to the earlier version of BOSSES where it was installed and maintained individually at different plant locations. The process data like pressure, temperature and flow acquired from different power plants is collected centrally. The damage accumulated in the critical components is evaluated from detailed 3-D finite element analysis on real time basis and reported for each of the power plant. The scope of the centralized version can be expanded to monitoring of damage in large number of components in very short time. The present paper describes the implementation of centralized BOSSES for a total 20 critical components from 4 thermal power plant units with some case studies of real life damage assessment.