Nuclear 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
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Uncertainty analysis of molten corium In-Vessel Retention under External Reactor Vessel Cooling
International Journal of Advanced Nuclear Reactor Design and Technology, 2023 External Reactor Vessel Cooling (ERVC) is a key measure to realize molten corium In-Vessel Retention (IVR). The uncertainty of severe accident in core leads to the uncertainty of molten pool parameters in lower head, which may threat the reliability of ...
Shihao Wu +6 more
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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]
Nuclear 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
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Nuclear Engineering and TechnologyThe 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
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Fuel–Coolant Interaction Visualization Test for In-Vessel Corium Retention External Reactor Vessel Cooling (IVR-ERVC) Condition [PDF]
Nuclear 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
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Structural Integrity Evaluation of a Reactor Cavity during a Steam Explosion for External Reactor Vessel Cooling [PDF]
Energies, 2021 Nuclear power is a major source of electricity in the international community. However, a significant problem with nuclear power is that, if a severe nuclear accident occurs, radiation may leak and cause great damage.
Sang-Hyun Park +2 more
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Research on Optimized Design of In-Vessel Retention–External Reactor Vessel Cooling Strategy and Negative Effect Assessment [PDF]
Frontiers in Energy Research, 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
Peng Chen +4 more
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Study of nuclear reactor external vessel passive cooling using computational fluid dynamics [PDF]
Nuclear Engineering and Design, 2021 Nuclear energy has recently re-gained support as a reliable source of carbon-free electricity. However, the safety of nuclear plants is still questioned, particularly in the wake of the tragic events in Fukushima. In response to this, the adoption of passive safety systems, providing cooling to the plant even in the absence of any active power, has ...
Colombo, M., Fairweather, M.
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Modeling corium pool stratification and focusing effect in APR1400 using a multiphase CFD framework [PDF]
Scientific ReportsAccurately predicting molten corium behavior is critical for assessing severe accident scenarios in nuclear reactors, particularly under In-Vessel Corium Retention with Reactor Vessel External Cooling (IVCR-RVEC) strategies.
Kamran Mahboob +2 more
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Experimental Study on Influence of External Pressure Vessel Cooling Parameters on Critical Heat Flux [PDF]
Yuanzineng kexue jishuIn-vessel retention (IVR) of molten material, as one of the most important mitigation measures for serious accidents, can effectively prevent the leakage of molten material from the core to the outside of the pressure vessel, resulting in the release of ...
ZHANG Zhen1, 2, XIONG Wanyu2, XING Dianchuan2, ZAN Yuanfeng2, WANG Guangjin2, CHEN Deqi1, 3, , XU Jianjun2
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