Open AccessProblems in Validation of the Chornobyl Accident Initiating Event
Author(s) -
G. Sharaievskii
Publication year - 2016
Publication title -
âderna ta radìacìjna bezpeka
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.221
H-Index - 5
ISSN - 2073-6231
DOI - 10.32918/nrs.2016.1(69).03
Subject(s) - coolant , nuclear engineering , boiling , computer science , loss of coolant accident , event (particle physics) , accident (philosophy) , thermal hydraulics , point (geometry) , boiling water reactor , reliability engineering , environmental science , engineering , mechanical engineering , heat transfer , mechanics , mathematics , thermodynamics , physics , philosophy , geometry , epistemology , quantum mechanics
The paper presents validation of known calculation dependencies used in RELAP-5 and other advanced computer codes to predict thermohydraulic anomalies from the standpoint of analyzing effect of initial coolant boiling in the Chornobyl accident on its further progression. The authors show current unsatisfactory efficiency of state-of-the-art computer codes in definition of the initial boiling point for the coolant in water-cooled nuclear reactors. The calculation methodology for improving accuracy in the predicting of dangerous thermal anomaly in reactor channels is under consideration.