Severe Accident
Cognitive Approach to Severe Accident in Nuclear Power Plant Using MAAP4 (P452)
... in severe accident guidance is focused on cooling of the reactor core and heat removal from the ...the severe accident render the measurement and interpretation of the data difficult ...the ...
5
A Simplified Approach for Predicting Containment Performance during a Severe Accident
... US Nuclear Regulatory Commission (NRC) Office of Nuclear Regulatory Research is conducting State Of the Art Reactor Consequence Analyses (SOARCA) for operating nuclear power plants in the United States. One of the inputs ...
6
Simulation of the Phebus FPT1 Severe Accident Experiment with the MELCOR Computer Code
... a severe accident in a pressurized water reactor, from the initial stages of core degradation through to the behaviour of the released fission products in the ...
19
Status of Severe Accident Management Guidelines at Kozloduy Nuclear Power Plant
... According the design 8 passive autocatalytic recombiners (PARs) are installed. They are capable, based on fully passive principle, to recombine hydrogen and oxygen into water steam. According to the performed analyses ...
8
A Determination of Severe Accident Environmental Conditions utilizing Accident Management Strategy for Equipment Survivability Assessment (P325)
... an accident environmental condition, however, indicates that it was determined with only representative or likely accident ...an accident scenario, the characteristics of severe ...
7
Thermo-mechanical Analysis of RVLH for APR1400 during a Severe Accident
... The SA533B1 data was substituted for creep data of SA-508 in the study. In addition, it was found that the steel ablation at the interface between corium and vessel steel is not only a thermal phenomenon in the METCOR ...
10
Mechanical Analysis of the Equipment Hatch Behaviour for the French PWR 900 MWE under Severe Accident
... Then, the global 3D model provides the boundary conditions of the local model (the equipment hatch) which gives in its turn the boundary conditions of the restricted model "sleeve and flanges". CPU cost for the ...
8
Creep damage evaluations for bwr lower head in severe accident
... It is difficult to assess rupture behavior of the lower head of reactor pressure vessel in boiling- water-type nuclear power plants due to severe accident like Fukushima Daiichi. One reason is that boiling ...
11
Effect of Temperature on Ultimate Capacity of Lined Containment under Severe Accident Conditions
... Containment structure is the most important civil engineering structure of a nuclear power plant (NPP), housing the reactor and major safety related components. Evaluation of ultimate load capacity (ULC) of containment ...
9
Calandria Vessel Integrity Under Severe Accident Loads
... in severe accidents. This has significant impacts on severe accident ...in severe accidents that are expected to progress with ample opportunity for operator actions to stabilize the plant and ...
8
A Base-Isolated Diesel Generator System for Severe Accident-Management at Beznau NPP
... An effective countermeasure for Severe Accident-Management (SAM), consisting of an additional base- isolated Diesel Generator System was built at Beznau NPP in June, 2013. Aim of this paper is to describe ...
10
Uncertainty analysis of containment building pressure load caused by severe accident sequences
... the severe accident analysis there were uncertainties in the physical ...during severe accidents were identified, and their uncertainty was characterized using a user specified ...
5
The Plant-specific Spent Fuel Pool Severe Accident Analysis to Support a SFP Risk and Accident Management
... underlying severe accident phenomena expected in an SFP, plant-specific analyses for two potential accident scenarios have been performed using the MELCOR ...key accident phenomena obtained ...
9
Estimation of thermal-hydraulic loading for VVER-1000 under severe accident scenario
... for severe accident analyses for VVER-1000 (V320), the presence of abundant steam and less steam environment governs the fuel heatup, hydrogen generation and extent of core melting ...Coolant ...
6
Thermal and Mechanical Margin to Failure of Lower Head with COASISO During a Severe Accident
... The first two factors arise from the natural convection within the molten pool of debris, the metal layer focusing effect and conduction heat transfer while the la[r] ...
8
The Severe Accident Analysis of the Prestressed Concrete Containment for Tianwan Nuclear Power Plant
... The changes in tendon strains and tendon stresses are the smallest because the tendons are located near the middle surface of the shell and the interrnal pressu[r] ...
10
Severe Accident Analysis & Post Accident Management for Spent Fuel Storage Facility
... In the event of severe flooding beyond design basis, water may enter fuel pool. The consequence analysis for this condition has been carried out which indicates it is a safe situation, as cooling of the pool water ...
8
An Evaluation of Severe Accident Pressure Capacity of Containment Structure in KNGR
... advanced design features of KNGR, the most important design feature is that the containment structure is designed to maintain the structural integrity even though [r] ...
8
Applicability evaluation of steel plate reinforced concrete structure to primary containment vessel of bwrs (11) opening part test
... a severe accident (hereafter abbreviated as an “SA”), one side of the specimen was heated to a fixed temperature of 300°C, while the other side was cooled to a fixed temperature of ...
10
A Reinforced Concrete Structure Under Detonation Conditions
... The accident progression (station blackout) was calculated using the MELCOR 1.8.4 code, which is an integrated lumped parameter code for predicting severe accident ph[r] ...
8