Results 11 to 20 of about 24,201 (184)

Numerical and experimental investigation of the water flow through PWR spacer grids

open access: yesBrazilian Journal of Radiation Sciences, 2021
Spacer grids are one of main components of a Pressurized Water Reactor (PWR) fuel assembly. They are able to improve heat transfer from rod bundles to the water flow by increasing turbulence and mixture of this flow.
Higor Fabiano Pereira de Castro   +8 more
doaj   +1 more source

Assessment of the Radiotoxicity of Spent Nuclear Fuel from a Fleet of PWR Reactors

open access: yesEnergies, 2021
The paper presents the methodology for the estimation of the long-term actinides radiotoxicity and isotopic composition of spent nuclear fuel from a fleet of Pressurized Water Reactors (PWR).
M. Oettingen
semanticscholar   +1 more source

A CIPS risk evaluation methodology applicable for PWR

open access: yesHe jishu, 2021
BackgroundDuring pressurized water reactor (PWR) power operation period, corrosion products tend to deposit in the fuel boiling zone and form chalk rivers unidentified deposit (CRUD).
MENG Shuqi   +4 more
doaj   +1 more source

A Global Review of PWR Nuclear Power Plants

open access: yesApplied Sciences, 2020
Nuclear energy is presented as a real option in the face of the current problem of climate change and the need to reduce CO2 emissions. The nuclear reactor design with the greatest global impact throughout history and which has the most ambitious ...
Pablo Fernández-Arias   +2 more
semanticscholar   +1 more source

CFD simulation of flow and heat transfer characteristics in a 5×5 fuel rod bundles with spacer grids of advanced PWR

open access: yesNuclear Engineering and Technology, 2020
High fidelity nuclear reactor fuel assembly simulation using CFD method is an effective way for the structure design and optimization. The validated models and user practice guidelines play critical roles in achieving reliable results in CFD simulations.
Yingjie Wang   +8 more
semanticscholar   +1 more source

3D CORE CALCULATION BASED ON THE METHOD OF DYNAMIC HOMOGENIZATION [PDF]

open access: yesEPJ Web of Conferences, 2021
The classical two-step calculation scheme has been extensively used to perform three-dimensional deterministic core calculations thanks to its fast results. On the other hand, direct 3D transport calculations and 2D/1D Fusion methods, mostly based on the
Galia Antonio   +2 more
doaj   +1 more source

OVERVIEW OF THE HINKLEY POINT C EPR PROJECT ‘J0’ AND BEYOND [PDF]

open access: yesEPJ Web of Conferences, 2021
The twin unit EPR construction at Hinkley Point C is the first nuclear new build project to be undertaken in the UK in a generation. Moreover, it is now the country’s only new reactor project still in progress.
Dyrda James, Morrison Richard
doaj   +1 more source

SURROGATE MODEL OPTIMIZATION OF A ‘MICRO CORE’ PWR FUEL ASSEMBLY ARRANGEMENT USING DEEP LEARNING MODELS [PDF]

open access: yesEPJ Web of Conferences, 2021
This paper investigates the applicability of surrogate model optimization (SMO) using deep learning regression models to automatically embed knowledge about the objective function into the optimization process.
Whyte Andy, Parks Geoff
doaj   +1 more source

POSSIBILITIES OF 3D MACHINING OF MATERIALS BY ABRASIVE WATER JETS

open access: yesGeoScience Engineering, 2019
Machining of materials through the classical way, i.e. using conventional tools for turning, drilling, milling, grinding and polishing, has some limits that can be overcome applying an abrasive water jet (AWJ).
Jan RAŠKA   +3 more
doaj   +1 more source

Optimization of the loading pattern of the PWR core using genetic algorithms and multi-purpose fitness function

open access: yesNukleonika, 2021
The study demonstrates an application of genetic algorithms (GAs) in the optimization of the first core loading pattern. The Massachusetts Institute of Technology (MIT) BEAVRS pressurized water reactor (PWR) model was applied with PARCS nodal-diffusion ...
Kubiński Wojciech   +2 more
doaj   +1 more source

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