Nuclear core and fuel assemblies
Abstract
A fast flux nuclear core of a plurality of rodded, open-lattice assemblies having a rod pattern rotated relative to a rod support structure pattern. Elongated fuel rods are oriented on a triangular array and laterally supported by grid structures positioned along the length of the assembly. Initial inter-assembly contact is through strongbacks at the corners of the support pattern and peripheral fuel rods between adjacent assemblies are nested so as to maintain a triangular pitch across a clearance gap between the other portions of adjacent assemblies. The rod pattern is rotated relative to the strongback support pattern by an angle .alpha. equal to sin .sup.-1 (p/2c), where p is the intra-assembly rod pitch and c is the center-to-center spacing among adjacent assemblies.
- Inventors:
-
- Monroeville, PA
- Issue Date:
- Research Org.:
- Westinghouse Electric Corp., Pittsburgh, PA (United States)
- OSTI Identifier:
- 863964
- Patent Number(s):
- 4285771
- Assignee:
- Westinghouse Electric Corp. (Pittsburgh, PA)
- Patent Classifications (CPCs):
-
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- DOE Contract Number:
- EY-76-C-02-3045
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- nuclear; core; fuel; assemblies; fast; flux; plurality; rodded; open-lattice; rod; pattern; rotated; relative; support; structure; elongated; rods; oriented; triangular; array; laterally; supported; grid; structures; positioned; length; assembly; initial; inter-assembly; contact; strongbacks; corners; peripheral; adjacent; nested; maintain; pitch; clearance; gap; portions; strongback; angle; alpha; equal; -1; 2c; intra-assembly; center-to-center; spacing; rod support; nuclear core; fuel rods; fuel assemblies; fuel rod; support structure; triangular array; rotated relative; grid structure; elongated fuel; peripheral fuel; grid structures; /376/976/
Citation Formats
Downs, Robert E. Nuclear core and fuel assemblies. United States: N. p., 1981.
Web.
Downs, Robert E. Nuclear core and fuel assemblies. United States.
Downs, Robert E. Thu .
"Nuclear core and fuel assemblies". United States. https://www.osti.gov/servlets/purl/863964.
@article{osti_863964,
title = {Nuclear core and fuel assemblies},
author = {Downs, Robert E},
abstractNote = {A fast flux nuclear core of a plurality of rodded, open-lattice assemblies having a rod pattern rotated relative to a rod support structure pattern. Elongated fuel rods are oriented on a triangular array and laterally supported by grid structures positioned along the length of the assembly. Initial inter-assembly contact is through strongbacks at the corners of the support pattern and peripheral fuel rods between adjacent assemblies are nested so as to maintain a triangular pitch across a clearance gap between the other portions of adjacent assemblies. The rod pattern is rotated relative to the strongback support pattern by an angle .alpha. equal to sin .sup.-1 (p/2c), where p is the intra-assembly rod pitch and c is the center-to-center spacing among adjacent assemblies.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1981},
month = {Thu Jan 01 00:00:00 EST 1981}
}