Results 1 to 10 of about 8,242 (166)

Microstructural Characterization of Reactor Pressure Vessel Steels

open access: yesMetals, 2023
Ion irradiation is a promising tool to emulate neutron-irradiation effects on reactor pressure vessel (RPV) steels, especially in the situation of limited availability of suitable neutron-irradiated material.
Libang Lai   +4 more
doaj   +3 more sources

Study on the influences of RPV deformation on CHF under IVR conditions

open access: yesFrontiers in Energy Research, 2023
After the reactor core melt, the thermal impact of high temperature molten mixture to the lower head of reactor pressure vessel (RPV) will cause the shape change of cooling channel constituted by reactor pressure vessel outer surface and other supporting
Shuang Wen   +13 more
doaj   +1 more source

Conducting local cutout from the surface of the VVER-1000 reactor vessel

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2019
Integrity of the reactor pressure vessel is a critical element in demonstrating the capability of nuclear power plant for operation to at least 80 years.
Олексій Геннадійович Руденко   +3 more
doaj   +5 more sources

Spinodal decomposition and radiation damage of a FeCuMnNi high-entropy alloy

open access: yesNuclear Materials and Energy, 2023
The precipitation of Cu-rich phases during the irradiation process will reduce radiation resistance in Fe-Cu-Mn-Ni reactor pressure vessel steels. Therefore, high-entropy alloys with excellent radiation resistance are expected to replace reactor pressure
Qingwei Guo   +5 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

Test of Critical Heat Flux on Outer Surface of CAP1400 Pressurized Reactor Vessel

open access: yesShanghai Jiaotong Daxue xuebao, 2022
A full height sliced test facility is established based on the modeling process. The heating test section is manufactured by adopting the explosive welding technology, and the surface of carbon steel can simulate the actual surface characteristic of a ...
SHI Guobao, ZHENG Mingguang, ZHANG Kun, KUANG Bo, LIU Pengfei
doaj   +1 more source

Vessel failure sensitivities of an advanced reactor for SBLOCA

open access: yesNuclear Engineering and Technology, 2020
Plant-specific analyses of an advanced reactor have been performed to assure the structural integrity of the reactor pressure vessel during transient conditions, which are expected to initiate pressurized thermal shock (PTS) events.
Myung Jo Jhung   +3 more
doaj   +1 more source

Non-hardening embrittlement mechanism of pressure vessel steel Ni-Cr-Mo-V welds during thermal aging

open access: yesAdvances in Mechanical Engineering, 2020
The mechanical performance of reactor pressure vessel materials is an important factor in the safety and economics of the operation of a nuclear power plant.
Guojun Wei   +4 more
doaj   +1 more source

Validation of the Serpent 2 Monte Carlo code for reactor dosimetry applications [PDF]

open access: yesEPJ Web of Conferences, 2023
The verification and validation (V&V) of the Serpent 2 Monte Carlo code for 3-D reactor dosimetry applications is being carried out at VTT. Two code-to-code computational benchmark cases were calculated by MCNP and Serpent 2. The computational efficiency
Dorval Eric
doaj   +1 more source

Study on Thermal Shock Failure Characteristics of RPV During IVR System Start-Up for Typical Advanced PWR

open access: yesFrontiers in Energy Research, 2022
When the large pressurized water reactor in-vessel retention (IVR) system is put into operation, the outer wall of the reactor pressure vessel (RPV) will experience severe temperature fluctuations and be subjected to high internal pressure loads at the ...
Dahuan Zhu   +6 more
doaj   +1 more source

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