Results 41 to 50 of about 17,622,316 (361)

Laser Additive Manufacturing of Oxide‐Dispersion‐Strengthened Steels: A Simulation‐Based Comparison Between Powder Bed Fusion and Direct Energy Deposition

Advanced Engineering Materials, EarlyView.
Controlling the size and distribution of dispersoids is essential for optimizing the performance of oxide‐dispersion‐strengthened steels. This study focuses on nanoparticle dispersion and agglomeration during laser additive manufacturing of Fe20Cr alloy reinforced with ZrO 2 nanoparticles. Utilizing multiphysics phase‐field simulations and nanoparticle
Somnath Bharech, Yangyiwei Yang, Timileyin David Oyedeji, Prasanth Bondi, Mareen Goßling, Bilal Gökce, Bai‐Xiang Xu   +6 more
wiley   +1 more source

Non-destructive assay of nuclear materials using a self-indication method

EPJ Web of Conferences, 2017
The integrity test applicable to TRU fuel containing MA with high radioactivity and high decay heat is important for safety. Neutron resonance transmission analysis is adapted for identification and quantification of nuclides in fuels by neutron time-of ...
Hori Jun-ichi, Sano Tadafumi, Takahashi Yoshiyuki, Lee Jaehong, Unesaki Hironobu, Nakajima Ken   +5 more
doaj   +1 more source

Feasibility study of the university of Utah TRIGA reactor power upgrade - part II: Thermohydraulics and heat transfer study in respect to cooling system requirements and design [PDF]

Nuclear Technology and Radiation Protection, 2013
The thermodynamic conditions of the University of Utah's TRIGA Reactor were simulated using SolidWorks Flow Simulation, Ansys, Fluent and PARET-ANL. The models are developed for the reactor's currently maximum operating power of 90 kW, and a few
Babitz Philip, Choe Dongok, Jevremovic Tatjana   +2 more
doaj   +1 more source

Characteristics of neutron fields at pool-type research nuclear reactors

Радиационная гигиена, 2023
The article presents results of experimental determination of the characteristics of neutron fields behind the biological shielding of reactor facilities in the physical hall of pressurized water research reactors of the pool type.
M. D. Pyshkina, M. V. Zhukovsky, A. V. Vasilyev, A. A. Ekidin, E. I. Nazarov, M. A. Romanova, M. N. Anikin   +6 more
doaj   +1 more source

Effect of Thermomechanical Processing on the Impact Deformation of Additively Manufactured 316L Stainless Steel

Advanced Engineering Materials, EarlyView.
Previous studies on additive manufacturing primarily focus on the mechanical properties of as‐printed components. In the present work, researchers explore the potential of employing novel thermomechanical postprocessing techniques to improve the microstructure after printing.
Radim Kocich, Lenka Kunčická, Zifan Wang, Gergely Németh   +3 more
wiley   +1 more source

Velocity field measurement in micro-bubble emission boiling

Nihon Kikai Gakkai ronbunshu, 2017
Liquid inlet behavior to a heat surface in micro-bubble emission boiling (MEB) was investigated by flow measurement using particle image velocimetry (PIV).
Daisuke ITO, Jun NATAZUKA, Yasushi SAITO
doaj   +1 more source

Implementation of the partial dismantling of research reactor IRT-Sofia prior to its refurbishment [PDF]

Nuclear Technology and Radiation Protection, 2010
In 2001, the Bulgarian Government decided to refurbish and convert the research reactor in Sofia into a low-power reactor. Due to this, a partial dismantling of IRT-Sofia’s old systems and equipment was carried out with the intention of reusing the ...
Apostolov Tihomir G., Anastasova Elka I., Anastassov Valentin D.   +2 more
doaj   +1 more source

Mechanical and Microstructural Effects of ZrO2 Nanoparticles in Fe20Cr Oxide Dispersion‐Strengthened Alloys Processed by Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
The influence of oxide nanoparticle synthesis route and concentration on microstructure and high‐temperature performance of additively manufactured oxide dispersion‐strengthened steels is investigated. Comparing laser‐generated and chemically synthesized ZrO2 nanoparticles, the study reveals how dispersion quality, crystal structure and particle size ...
Mareen Goßling, Silja‐Katharina Rittinghaus, Felix Radtke, Abdelrahman Elsayed, Marina Macias Barrientos, Ulf Ziesing, Louis Becker, Ihsan Murat Kuşoğlu, Christoph Broeckmann, Ulrich Krupp, Avinash Hariharan, Sebastian Weber, Bilal Gökce   +12 more
wiley   +1 more source

Development and validation of diffusion based CFD model for modelling of hydrogen and carbon monoxide recombination in passive autocatalytic recombiner

Nuclear Engineering and Technology, 2023
In water-cooled power reactor, hydrogen is generated in case of steam zirconium reaction during severe accident condition and later on in addition to hydrogen; CO is also generated during molten corium concrete interaction after reactor pressure vessel ...
Bhuvaneshwar Gera, Vishnu Verma, Jayanta Chattopadhyay   +2 more
doaj  

Thermal-hydraulic Fortran program for steady-state calculations of plate-type fuel research reactors [PDF]

Nuclear Technology and Radiation Protection, 2008
The safety assessment of research and power reactors is a continuous process covering their lifespan and requiring verified and validated codes. Power reactor codes all over the world are well established and qualified against real measuring data and ...
Khedr Ahmed
doaj   +1 more source