Results 11 to 20 of about 8,520 (102)

Fuel–Coolant Interaction Visualization Test for In-Vessel Corium Retention External Reactor Vessel Cooling (IVR-ERVC) Condition [PDF]

open access: yesNuclear Engineering and Technology, 2016
A visualization test of the fuel–coolant interaction in the Test for Real cOrium Interaction with water (TROI) test facility was carried out. To experimentally simulate the In-Vessel corium Retention (IVR)- External Reactor Vessel Cooling (ERVC ...
Young Su Na   +3 more
doaj   +3 more sources

Feasibility of flooding the reactor cavity with liquid gallium coolant for IVR-ERVC strategy

open access: yesNuclear Engineering and Design, 2013
Abstract In this paper, a new approach replacing the ERVC coolant by a liquid metal instead of water is studied to avoid the heat removal limit of CHF during boiling of water. As the flooding material, gallium is used in terms of the melting and boiling points.
Park, Seong Dae, Bang, In Cheol
openaire   +3 more sources

Numerical simulation on in-vessel molten corium behavior with external vessel cooling using smoothed particle hydrodynamics

open access: yesNuclear Engineering and Technology
The in-vessel retention through external reactor vessel cooling (IVR-ERVC) strategy is a key management strategy for early termination of a nuclear severe accident that can threaten the integrity of the reactor vessel.
Tae Hoon Lee   +5 more
doaj   +2 more sources

Evaluation of heat-flux distribution at the inner and outer reactor vessel walls under the in-vessel retention through external reactor vessel cooling condition [PDF]

open access: yesNuclear Engineering and Technology, 2015
Background: A numerical simulation was carried out to investigate the difference between internal and external heat-flux distributions at the reactor vessel wall under in-vessel retention through external reactor vessel cooling (IVR-ERVC). Methods: Total
Jaehoon Jung   +3 more
doaj   +2 more sources

Assessment of thermal safety margins for the IVR-ERVC strategy of the i-SMR using the CINEMA code

open access: yesNuclear Engineering and Technology
In-vessel corium retention with external reactor vessel cooling (IVR-ERVC) is a key severe accident mitigation strategy to prevent lower-head failure and retain fission products inside the reactor vessel. This study assesses the applicability of IVR-ERVC
Dong-Hun Shin   +6 more
doaj   +2 more sources

Investigation of the pressure vessel lower head potential failure under IVR-ERVC condition during a severe accident scenario in APR1400 reactors

open access: yesNuclear Engineering and Design, 2021
Abstract In the event of a core meltdown in a high-power reactor, the integrity of the reactor pressure vessel is presumably protected by severe accident mitigation systems such as in-vessel retention external reactor vessel cooling (IVR-ERVC). However, in the late phase of the accident, two possible locations on the RPV are prone to failure: the ...
Muritala Alade Amidu   +4 more
openaire   +2 more sources

Experimental Investigation on CHF along Elliptic-shaped Lower Head Wall and Influencing Factor under IVR-ERVC Condition

open access: yesYuanzineng kexue jishu, 2022
External reactor vessel cooling (ERVC) is one of the important severe accident mitigation strategies to achieve in-vessel retention(IVR) of melt core debris under severe accident conditions.
HE Yihai;WANG Gang;KUANG Bo;LUO Yuejian;WU Xiaoli
doaj   +1 more source

DataSheet1_Research on Optimized Design of In-Vessel Retention–External Reactor Vessel Cooling Strategy and Negative Effect Assessment.pdf

open access: yes, 2022
Due to large uncertainty, the effectiveness of in-vessel retention (IVR) with external reactor vessel cooling (ERVC) for high-power reactors cannot be fully demonstrated during the transient process. To optimize the current IVR-ERVC strategy, the concept
Dekui Zhan (12130140)   +4 more
core   +1 more source

Structural assessment of reactor pressure vessel under multi-layered corium formation conditions

open access: yesNuclear Engineering and Technology, 2015
External reactor vessel cooling (ERVC) for in-vessel retention (IVR) has been considered one of the most useful strategies to mitigate severe accidents.
Tae Hyun Kim   +2 more
doaj   +1 more source

Analysis of Steam Explosion under Conditions of Partially Flooded Cavity and Submerged Reactor Vessel

open access: yesScience and Technology of Nuclear Installations, Volume 2018, Issue 1, 2018., 2018
A steam explosion in a reactor cavity makes a mechanical load of the pressure pulse, which can result in a failure of the containment isolation. To prove the integrity of the containment during the ex‐vessel steam explosion, the effects of water conditions on a steam explosion have to be identified, and the impulse of a steam explosion has to be ...
Sang Ho Kim   +3 more
wiley   +1 more source

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