Results of the control rod worth program
Description
A control rod worth program was undertaken to improve the agreement between rod worth predictions and measurements by eliminating inadequacies in both the analytical and measurement methods. New Ag-In-Cd control rod group constants which produce satisfactory agreement (+0.745 +- 2.71% error) with critical experiments and plant data were generated by an improved calculation of transport-equivalent two-group diffusion parameters. The good agreement demonstrated between measured and predicted rod worths warrants a reduction of the uncertainty allowance for N-1 rod worth predictions from the current value of 10% to 7% at the 95/95 confidence level for Ag-In-Cd control rods
Availability note (English)
MF available from INIS under the Report Number; Westinghouse Electric Corp., Pittsburgh.
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Additional details
Additional titles
- Augmented title (English)
- PWR
Publishing Information
- Imprint Pagination
- 17 p.
- Report number
- WCAP--9218
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 9395746
- Subject category
- S22: GENERAL STUDIES OF NUCLEAR REACTORS; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Descriptors DEI
- COMPARATIVE EVALUATIONS; CONTROL ELEMENTS; CONTROL ROD WORTHS; MATHEMATICAL MODELS; PWR TYPE REACTORS; TESTING
- Descriptors DEC
- REACTOR COMPONENTS; REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS