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Title: Fast breeder reactor protection system

Abstract

Reactor protection is provided for a liquid-metal-fast breeder reactor core by measuring the coolant outflow temperature from each of the subassemblies of the core. The outputs of the temperature sensors from a subassembly region of the core containing a plurality of subassemblies are combined in a logic circuit which develops a scram alarm if a predetermined number of the sensors indicate an over temperature condition. The coolant outflow from a single subassembly can be mixed with the coolant outflow from adjacent subassemblies prior to the temperature sensing to increase the sensitivity of the protection system to a single subassembly failure. Coherence between the sensors can be required to discriminate against noise signals. (Official Gazette)

Inventors:
Issue Date:
OSTI Identifier:
4389909
Patent Number(s):
3764467
Assignee:
to United States Atomic Energy Commission
Patent Classifications (CPCs):
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
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
NSA Number:
NSA-29-011900
Resource Type:
Patent
Resource Relation:
Patent File Date: 1971 Dec 22; Other Information: G21c7/00; G21c17/00. Orig. Receipt Date: 30-JUN-74
Country of Publication:
United States
Language:
English
Subject:
N77500* -Reactors-Power Reactors, Breeding; *FBR TYPE REACTORS; *LMFBR TYPE REACTORS- REACTOR PROTECTION SYSTEMS; *REACTOR PROTECTION SYSTEMS- TEMPERATURE MONITORING; CONFIGURATION; PRIMARY COOLANT CIRCUITS LMFBR TYPE REACTORS

Citation Formats

van Erp, J B. Fast breeder reactor protection system. United States: N. p., 1973. Web.
van Erp, J B. Fast breeder reactor protection system. United States.
van Erp, J B. Mon . "Fast breeder reactor protection system". United States.
@article{osti_4389909,
title = {Fast breeder reactor protection system},
author = {van Erp, J B},
abstractNote = {Reactor protection is provided for a liquid-metal-fast breeder reactor core by measuring the coolant outflow temperature from each of the subassemblies of the core. The outputs of the temperature sensors from a subassembly region of the core containing a plurality of subassemblies are combined in a logic circuit which develops a scram alarm if a predetermined number of the sensors indicate an over temperature condition. The coolant outflow from a single subassembly can be mixed with the coolant outflow from adjacent subassemblies prior to the temperature sensing to increase the sensitivity of the protection system to a single subassembly failure. Coherence between the sensors can be required to discriminate against noise signals. (Official Gazette)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1973},
month = {10}
}