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Title: Summary of the thermal evaluation of LWBR (LWBR Development Program)

Technical Report ·
DOI:https://doi.org/10.2172/6513532· OSTI ID:6513532

This report describes the thermal evaluation of the core for the Shippingport Light Water Breeder Reactor. This core contains unique thermal-hydraulic features such as (1) close rod-to-rod proximity, (2) an open-lattice array of fuel rods with two different diameters and rod-to-rod spacings in the same flow region, (3) triplate orifices located at both the entrance and exit of fuel modules and (4) a hydraulically-balanced movable-fuel system coupled with (5) axial-and-radial fuel zoning for reactivity control. Performance studies used reactor thermal principles such as the hot-and-nominal channel concept and related nuclear/engineering design allowances. These were applied to models of three-dimensional rodded arrays comprising the core fuel regions.

Research Organization:
Bettis Atomic Power Lab. (BAPL), West Mifflin, PA (United States)
DOE Contract Number:
AC11-76PN00014
OSTI ID:
6513532
Report Number(s):
WAPD-TM-1385; TRN: 81-010428
Country of Publication:
United States
Language:
English