Future Plans for Performance Analysis and Maintenance/Inspection Optimization of Shutoff Rods Based on the Case Study of Bruce Power Unit-3 Shutoff Rod 5 Inspection
32nd Annual CNS Conference - 2011 June 05-08

Presented at:
32nd Annual CNS Conference
2011 June 05-08
Niagara Falls, Canada
Session Title:
Plant Life Monitoring, Life Extension, Refurbishment and Aging

Elnara Nasimi (Bruce Power, UOIT)
Hossam Gabbar (UOIT)


Shutdown System 1 (SDS1) is a preferred method for a quick shutdown of nuclear fission process in CANDU® (CANada Deuterium Uranium) reactor units. Failure of a routine SDS1 safety test during Fall 2009 outage resulted in the need to develop and execute a new methodology for Shutoff Rod inspection and re-evaluate the known degradation mechanisms and failure modes. This paper describes the development of this methodology and the obtained results. It also proposes several alternative solutions for the future performance analysis and maintenance/inspection optimization for SDS1 Shutoff Rods based on the Bruce Power Unit-3 Shutoff Rod 5 case study.

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