Methods to Reduce CIPS/CILC Risk for the Zero Fuel Failure by 2010 Initiative

In order to support the industry goal of zero fuel failures by 2010 and beyond, established by the Institute of Nuclear Power Operations (INPO), this paper describes how the Crud Induced Power Shift (CIPS) and Crud Induced Localized Corrosion (CILC) risk is being addressed by Westinghouse Electric Company LLC. As one of the key fuel failure mechanisms, CIPS/CILC risk assessments are being targeted, and the relationship between the CIPS/CILC mechanisms, fuel reliability, and plant operating conditions will be discussed. Plant and experimental data will be presented to show the current state of CIPS/CILC risk assessments for Westinghouse fuel. Finally, suggestions and other initiatives that specifically target reducing CIPS/CILC risk will be described for Pressurized Water Reactors (PWRs) supported by test and/or analysis results.