Thermal margin protection system for a nuclear reactor
Patent
·
OSTI ID:4311890
A thermal margin protection system for a nuclear reactor is described where the coolant flow flow trip point and the calculated thermal margin trip point are switched simultaneously and the thermal limit locus is made more restrictive as the allowable flow rate is decreased. The invention is characterized by calculation of the thermal limit Locus in response to applied signals which accurately represent reactor cold leg temperature and core power; cold leg temperature being corrected for stratification before being utilized and reactor power signals commensurate with power as a function of measured neutron flux and thermal energy added to the coolant being auctioneered to select the more conservative measure of power. The invention further comprises the compensation of the selected core power signal for the effects of core radial peaking factor under maximum coolant flow conditions. (Official Oazette)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-29-023434
- Assignee:
- to Combusion Engineering, Inc.
- Patent Number(s):
- US 3791922
- OSTI ID:
- 4311890
- Country of Publication:
- United States
- Language:
- English
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