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Title: Nuclear-radiation-actuated valve. [Patent application; for increasing coolant flow to blanket]

Abstract

The present invention relates to a breeder reactor blanket fuel assembly coolant system valve which increases coolant flow to the blanket fuel assembly to minimize long-term temperature increases caused by fission of fissile fuel created from fertile fuel through operation of the breeder reactor. The valve has a valve first part (such as a valve rod with piston) and a valve second part (such as a valve tube surrounding the valve rod, with the valve tube having side slots surrounding the piston). Both valve parts have known nuclear radiation swelling characteristics. The valve's first part is positioned to receive nuclear radiation from the nuclear reactor's fuel region. The valve's second part is positioned so that its nuclear radiation induced swelling is different from that of the valve's first part. The valve's second part also is positioned so that the valve's first and second parts create a valve orifice which changes in size due to the different nuclear radiation caused swelling of the valve's first part compared to the valve's second part. The valve may be used in a nuclear reactor's core coolant system.

Inventors:
;
Issue Date:
OSTI Identifier:
6746105
Patent Number(s):
-US-A340621
Application Number:
ON: DE83002353
Assignee:
Dept. of Energy ERA-08-005096; EDB-83-004502
DOE Contract Number:  
AC06-76FF02170
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; BREEDER REACTORS; REACTOR COOLING SYSTEMS; VALVES; DESIGN; BREEDING BLANKETS; FUEL ASSEMBLIES; RADIATION EFFECTS; SWELLING; CONTROL EQUIPMENT; COOLING SYSTEMS; ENERGY SYSTEMS; EQUIPMENT; FLOW REGULATORS; REACTOR COMPONENTS; REACTORS 210500* -- Power Reactors, Breeding

Citation Formats

Christiansen, D.W., and Schively, D.P. Nuclear-radiation-actuated valve. [Patent application; for increasing coolant flow to blanket]. United States: N. p., 1982. Web.
Christiansen, D.W., & Schively, D.P. Nuclear-radiation-actuated valve. [Patent application; for increasing coolant flow to blanket]. United States.
Christiansen, D.W., and Schively, D.P. Tue . "Nuclear-radiation-actuated valve. [Patent application; for increasing coolant flow to blanket]". United States.
@article{osti_6746105,
title = {Nuclear-radiation-actuated valve. [Patent application; for increasing coolant flow to blanket]},
author = {Christiansen, D.W. and Schively, D.P.},
abstractNote = {The present invention relates to a breeder reactor blanket fuel assembly coolant system valve which increases coolant flow to the blanket fuel assembly to minimize long-term temperature increases caused by fission of fissile fuel created from fertile fuel through operation of the breeder reactor. The valve has a valve first part (such as a valve rod with piston) and a valve second part (such as a valve tube surrounding the valve rod, with the valve tube having side slots surrounding the piston). Both valve parts have known nuclear radiation swelling characteristics. The valve's first part is positioned to receive nuclear radiation from the nuclear reactor's fuel region. The valve's second part is positioned so that its nuclear radiation induced swelling is different from that of the valve's first part. The valve's second part also is positioned so that the valve's first and second parts create a valve orifice which changes in size due to the different nuclear radiation caused swelling of the valve's first part compared to the valve's second part. The valve may be used in a nuclear reactor's core coolant system.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {1}
}