Reactor Physics Test Program for the Light Water Breeder Reactor (LWBR) core at Shippingport. (LWBR Development Program)
This report presents and discusses the results of the reactor physics test program for the LWBR core at Shippingport during the reduced power phase of operation from 18,298 EFPH through the end of life at 28,730 EFPH. Test results covering the period from initial startup to 18,298 EFPH have previously been reported in WAPD-TM--1336 (June 1979) and WAPD-TM-1455 (December 1981). The periodic physics tests have confirmed that movable seed assembly (control element) critical positions and reactivity worths, reactivity coefficients, xenon and protactinium characteristics, core symmetry and core shutdown continued to be within the range of values used in the design of LWBR and its safety analysis. The results of these tests give confidence that breeding has occurred in the Shippingport LWBR core, but confirmation of breeding will be obtained by nondestructive and destructive assay of a sample of expended fuel rods from the LWBR core. The testing has shown that the calculational models used can predict the behavior of U/sup 233/-Th fuel systems with tight lattices and movable fuel. In addition, the end of life test results confirmed the validity of the physics parameters assumed for the defueling safety assessment. 16 references, 25 figures, 35 tables.
- Research Organization:
- Bettis Atomic Power Lab., West Mifflin, PA (USA)
- DOE Contract Number:
- AC11-76PN00014
- OSTI ID:
- 5349718
- Report Number(s):
- WAPD-TM-1455-Add.; ON: DE84006392
- Country of Publication:
- United States
- Language:
- English
Similar Records
Nuclear analysis and performance of the Light Water Breeder Reactor (LWBR) core power operation at Shippingport
Defueling of the Light Water Breeder Reactor at the Shippingport Atomic Power Station (LWBR Development Program)
Related Subjects
210500* -- Power Reactors
Breeding
BREEDER REACTORS
DATA
EXPERIMENTAL DATA
INFORMATION
KINETICS
LWBR TYPE REACTORS
NUMERICAL DATA
PHYSICS
REACTIVITY COEFFICIENTS
REACTIVITY WORTHS
REACTOR COMPONENTS
REACTOR CORES
REACTOR KINETICS
REACTOR PHYSICS
REACTORS
THERMAL REACTORS
WATER COOLED REACTORS
WATER MODERATED REACTORS