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Title: Nuclear engine flow reactivity shim control

Abstract

A nuclear engine control system is provided which automatically compensates for reactor reactivity uncertainties at the start of life and reactivity losses due to core corrosion during the reactor life in gas-cooled reactors. The coolant gas flow is varied automatically by means of specially provided control apparatus so that the reactor control drums maintain a predetermined steady state position throughout the reactor life. This permits the reactor to be designed for a constant drum position and results in a desirable, relatively flat temperature profile across the core. (Official Gazette)

Inventors:
Issue Date:
OSTI Identifier:
4339996
Patent Number(s):
3778344
Assignee:
to United States Atomic Energy Commission
Patent Classifications (CPCs):
G - PHYSICS G21 - NUCLEAR PHYSICS G21D - NUCLEAR POWER PLANT
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
NSA Number:
NSA-29-023663
Resource Type:
Patent
Resource Relation:
Patent File Date: 1968 Mar 21; Other Information: G21c7/28. Orig. Receipt Date: 30-JUN-74
Country of Publication:
United States
Language:
English
Subject:
N79400* -Reactors-Reactor Control Systems; N77800 - Reactors-Space, Mobile, Propulsion, Transportation & Package Reactors; *REACTOR CONTROL SYSTEMS; *SPACE PROPULSION REACTORS- REACTOR CONTROL SYSTEMS; CONFIGURATION; GAS COOLED REACTORS; GAS FLOW; NESDPS Office of Nuclear Energy Space and Defense Power Systems

Citation Formats

Walsh, J M. Nuclear engine flow reactivity shim control. United States: N. p., 1973. Web.
Walsh, J M. Nuclear engine flow reactivity shim control. United States.
Walsh, J M. Tue . "Nuclear engine flow reactivity shim control". United States.
@article{osti_4339996,
title = {Nuclear engine flow reactivity shim control},
author = {Walsh, J M},
abstractNote = {A nuclear engine control system is provided which automatically compensates for reactor reactivity uncertainties at the start of life and reactivity losses due to core corrosion during the reactor life in gas-cooled reactors. The coolant gas flow is varied automatically by means of specially provided control apparatus so that the reactor control drums maintain a predetermined steady state position throughout the reactor life. This permits the reactor to be designed for a constant drum position and results in a desirable, relatively flat temperature profile across the core. (Official Gazette)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1973},
month = {12}
}