Uncertainties in the breeding ratio of a large LMFBR

Conference · Sun Jan 01 04:00:00 EST 1978

OSTI ID:6747641

Marable, J H; Weisbin, C R

An uncertainty analysis for eight fast integral benchmark experiments was performed to find the most consistent set of values for both the integral and differential data as well as their associated covariances. Extensive covariance data including inelastic scattering for /sup 238/U and uncertainties in the fission spectrum temperature were used in the adjustment. The resulting covariance for the adjusted data was folded with calculated performance parameter sensitivities for a two-dimensional model of a conventional homogeneous plutonium-oxide fueled fast breeder reactor. Based on the estimated covariance files it was found that the inclusion of integral experiment data reduced the uncertainty in the static breeding ratio to the design goal of two percent. Some apparent inconsistencies in the data were alleviated by including in an approximate way the effect of methods, uncertainties, and other possible systematic errors.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6747641
• Report Number(s): CONF-780401-16
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210500* -- Power Reactors
Breeding
BREEDER REACTORS
BREEDING RATIO
CONVERSION RATIO
DATA ANALYSIS
EPITHERMAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
KINETICS
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
MATHEMATICS
REACTOR KINETICS
REACTORS
SENSITIVITY
STATISTICS