Results 21 to 30 of about 114,871,075 (252)

Design by analysis of ductile failure and buckling in torispherical pressure vessel heads [PDF]

open access: yes, 2008
Thin shell torispherical pressure vessel heads are known to exhibit complex elastic-plastic deformation and buckling behaviour under static pressure. In pressure vessel Design by Analysis, the designer is required to assess both of these behaviour modes ...
Camilleri, Duncan   +2 more
core   +4 more sources

Transient stratified corium pool modelling for In-Vessel Retention analysis

open access: yes, 2020
International audienceConsidering the in-vessel-retention strategy for the management of severe accident in light water reactors, this paper provides an overview of state-of-the-art modelling under transient conditions of the core melt behaviour in the ...
Carénini, Laure   +5 more
core   +2 more sources

Methodology of safety evaluation of In-Vessel Retention

open access: yes, 2020
International audienceMolten corium stabilization following a severe accident is of crucial importance in order to ensure containment integrity on a long-term basis and minimizing radioactive elements releases outside the plant.
Brumm, Stephan   +3 more
core   +1 more source

Status of computational fluid dynamics for in-vessel retention: Challenges and achievements

open access: yes, 2020
International audienceDuring a severe accident in a nuclear reactor, core damage occurs and may lead to the formation of corium, followed by relocation to the vessel lower head.
Skrzypek, E.   +12 more
core   +1 more source

Analysis of critical points of the In-Vessel Retention safety evaluation

open access: yes, 2020
International audienceIn-Vessel Retention (IVR) strategy for nuclear reactors in case of a Severe Accident (SA) intends to stabilize and retain the corium in the vessel by using the vessel wall as a heat exchanger with an external water loop.
Carénini, Laure, Fichot, Florian
core   +1 more source

Elaboration of a phenomena identification ranking table (PIRT) for the modelling of In-Vessel Retention

open access: yes, 2020
International audienceThe strategy for In-Vessel Retention (IVR) of corium is currently considered for several new reactor designs in various countries. One of the issues for the demonstration of the success of this strategy is that there are significant
Filippov, A.   +13 more
core   +1 more source

Trainable COSFIRE filters for vessel delineation with application to retinal images [PDF]

open access: yes, 2015
Retinal imaging provides a non-invasive opportunity for the diagnosis of several medical pathologies. The automatic segmentation of the vessel tree is an important pre-processing step which facilitates subsequent automatic processes that contribute to ...
Petkov, Nicolai, Azzopardi, George
core   +1 more source

Measurements of in-vessel and ex-vessel liquid corium surface tension and density in the VITI-MBP test bench within ALISA Euro-Chinese project

open access: yesMechanical Engineering Journal, 2020
Within the ALISA (Access to Large Infrastructures for Severe Accidents) cooperation between the European Union and China on SA (Severe Accident) facilities, CNPRI (China Nuclear Power technology Research Institute) has proposed to CEA (Commissariat à l ...
Jules DELACROIX   +4 more
doaj   +1 more source

Two- and three-dimensional experiments for oxide pool in in-vessel retention of core melts

open access: yesNuclear Engineering and Technology, 2017
To investigate the heat loads imposed on a reactor vessel through the natural convection of core melts in severe accidents, mass transfer experiments were performed based on the heat transfer/mass transfer analogy, using two- (2-D) and three-dimensional (
Su-Hyeon Kim   +2 more
doaj   +1 more source

Numerical study on thermal-hydraulics of external reactor vessel cooling in high-power reactor using MARS-KS1.5 code: CFD-aided estimation of natural circulation flow rate

open access: yesNuclear Engineering and Technology, 2022
This paper presents a numerical investigation of two-phase natural circulation flows established when external reactor vessel cooling is applied to a severe accident of the APR1400 reactor for the in-vessel retention of the core melt.
Min Seop Song   +3 more
doaj   +1 more source

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