Results 1 to 10 of about 19,093 (119)

Model for calculating the temperature in the fuel rods of the fa-x fuel assembly produced for subcritical instillation and reactor wwr-m

Trudy Odesskogo Politehničeskogo Universiteta, 2020
The TVS-X fuel rod model designed by NSC KIPT as an alternative fuel for subcritical assembly (SCA, KIPT, Kharkov) and research reactor (WWR-M, INR, Kiev) is described.
Ігор Олександрович Чернов, Антон Володимирович Куштим   +1 more
doaj   +5 more sources

Coupled Modeling and Simulation of Phase Transformation in Zircaloy-4 Fuel Cladding Under Loss-of-Coolant Accident Conditions

Frontiers in Energy Research, 2021
Under loss-of-coolant conditions, the temperature on fuel cladding will increase rapidly (up to 1000–1500 K), which will not only cause a dramatic oxidation reaction of Zircaloy-4 and an increase in hydrogen concentration but also cause an allotropic ...
Wenjun Lu, Libo Qian, Wenzhong Zhou, Wenzhong Zhou   +3 more
doaj   +1 more source

Selection of Temperature regimes for conditioning and flotation of diamond-bearing kimberlite with compound collectors

Горные науки и технологии, 2022
The condition for stable fixation of a collector on the surface of diamonds and their flotation is the use of collectors of the optimal fractional composition and the choice of the optimum temperature regime of the process. To determine the parameters of
Valery V. Morozov, Evgeny G. Kovalenko, Galina P. Dvoichenkova, Valentina A. Chut-Dy –   +3 more
doaj   +1 more source

Experimental Research on the Macroscopic and Microscopic Spray Characteristics of Diesel-PODE_3-4 Blends

Energies, 2021
Polyoxymethylene dimethyl ether (PODE) is a low-viscosity oxygenated fuel that can improve the volatility of blended fuels. In this work, the macroscopic and microscopic spray characteristics of diesel-PODE3-4 under different ambient temperatures and ...
Yulin Chen, Songtao Liu, Xiaoyu Guo, Chaojie Jia, Xiaodong Huang, Yaodong Wang, Haozhong Huang   +6 more
doaj   +1 more source

Numerical prediction of the spray from an air-assisted fuel injection system via Eulerian–Lagrangian approach

Energy Reports, 2021
Air-assisted fuel injection (AAFI) systems may be installed in aviation piston engines for atomization of heavy fuels. However, there are few studies on the in-cylinder air-assisted spray characteristics, which affects the improvement of AAFI engine ...
Bingxuan Du, Zhenfeng Zhao
doaj   +1 more source

Gas Bubble Evolution in Polycrystalline UMo Fuels Under Elastic-Plastic Deformation: A Phase-Field Model With Crystal-Plasticity

Frontiers in Materials, 2021
In monolithic UMo fuels, the interaction between the Al cladding and large gas bubble volumetric swelling causes both elastic-plastic and creep deformation.
Shenyang Hu, Benjamin Beeler, Benjamin Beeler   +2 more
doaj   +1 more source

Phase-field simulations of fission gas bubble growth and interconnection in U-(Pu)-Zr nuclear fuel

Materials Theory, 2022
The growth and interconnection of fission gas bubbles in the hotter central regions of U-(Pu)-Zr nuclear fuel has been simulated with a phase-field model. The Cahn-Hilliard equation was used to represent the two-phase microstructure, with a single defect
Larry K. Aagesen, Albert Casagranda, Christopher Matthews, Benjamin W. Beeler, Stephen Novascone   +4 more
doaj   +1 more source

Kinetic Monte Carlo (KMC) simulation of sintering of nickel oxide-yttria stabilized zirconia composites: Model, parameter calibration and validation

Materials & Design, 2023
This study proposes a kinetic Monte Carlo (KMC) model for the sintering of two-phase composites using nickel oxide-yttria stabilized zirconia (NiO-YSZ) as a case study. An artificial neural network (ANN) assisted method is used to calibrate the KMC model
Shihao Zhou, Xuhao Liu, Zilin Yan, Shotaro Hara, Naoki Shikazono, Zheng Zhong   +5 more
doaj   +1 more source

A MICROSTRUCTURAL MODEL OF THE THERMAL CONDUCTIVITY OF DISPERSION TYPE FUELS WITH A FUEL MATRIX INTERACTION LAYER

Nuclear Engineering and Technology, 2013
This paper describes a finite element model of the microstructure of dispersion type nuclear fuels, which can be used to determine the effective thermal conductivity of the fuels during irradiation. The model simulates a representative region of the fuel
A.F. WILLIAMS, B.W. LEITCH, N. WANG
doaj   +1 more source

Impact of Fe-doped H2/O2 flame equivalence ratio on the fate and temperature history of early particles

Applications in Energy and Combustion Science, 2023
The temperature and species concentration history experienced by the gas-borne nanoparticles during their evolution in the flame has a major impact on their size, morphology, composition, and crystallinity. In our recent work (Combust.
Piotr Cwiek, Patrick Wollny, Matthieu R. Lalanne, Monika Nanjaiah, Maayan Cohen, Noam Horodi, Irenaeus Wlokas, Igor Rahinov   +7 more
doaj   +1 more source