Probabilistic method for determining effluent temperature limits for flow instability for SRS reactors: Addendum

摘要

Previous values used for the uncertainties in the K14.1 limits calculations were based on the best available data at the time. Some of the data was in preliminary form and many assumptions were made. In addition, not all of the calculations made with the previous data were well documented. Because of an increase in both the volume and quality of data, and to verify calculations, revisions to the values for the uncertainties were appropriate. The revised uncertainty values include updated information which is more accurate and has a high level of quality assurance. The previously developed methodology for the uncertainty analysis was used in the current calculations. This document provides a complete description of the changes to the uncertainty analysis calculations made since closure. A number of the uncertainty for the K14.1 charge were recalculated to improve accuracy, to reflect updates in the values of significant uncertainty parameters, and to provide complete documentation of bases for these parameters. In this addendum, the uncertainty calculations are described in greater detail than in Reference 1.