Results 301 to 310 of about 39,007 (347)

Irradiation Testing of High-Power-Density Vibropacked Annular Fuel

Nuclear Technology, 2007
This paper describes an irradiation test of high-power-density internally and externally cooled annular fuel samples in the 5-MWMassachusetts Institute of Technology (MIT) research reactor MITR-II. The design of the irradiation facility is briefly reviewed, with an emphasis on the thermal-hydraulic behavior of the irradiation capsules.
Gordon Kohse, David Carpenter, Yi Yuan, Pavel Hejzlar, Mujid Kazimi   +4 more
openaire   +1 more source

Annular fuel pin heat transfer and lumped model correction

Progress in Nuclear Energy, 2010
Abstract A new modified lumped heat transfer model is developed to calculate the annular fuel pin's average temperature by considering the central hole. Lumped heat transfer methodology is simple, and the solution is very fast, so it consumes smaller computational time.
T. Sathiyasheela, P. Mohanakrishnan
openaire   +1 more source

Mechanical Analysis of High Power Internally Cooled Annular Fuel

Nuclear Technology, 2004
Annular fuel with internal flow is proposed to allow higher power density in pressurized water reactors. The structural behavior issues arising from the higher flow rate required to cool the fuel are assessed here, including buckling, vibrations, and potential wear problems.
Zhao, JY, No, HC No, Hee Cheon, Kazimi, MS   +2 more
openaire   +1 more source

Optimum configuration of an annular nuclear fuel element

Nuclear Engineering and Design, 1970
Abstract In all-ceramic fuel elements for high temperature gas-cooled reactors, an unfueled moderator spine is often surrounded by a fuel compact consisting of a dispersion of fuel and fertile material in a moderator matrix with a ceramic cladding. For given fuel and fertile loading in a fuel element of given outer size, physical reasoning suggests ...
openaire   +1 more source

Phase-Field Fracture Simulation of Dual-Cooled Annular Fuel Pellet

Volume 2: Nuclear Fuel and Material, Reactor Physics and Transport Theory, and Fuel Cycle Technology, 2022
Abstract The dual-cooled annular nuclear fuel is an advanced design that is expected to greatly lower fuel temperature even under high linear power density, as compared to traditional cylindrical fuel pin. Although fuel temperature can be much lower, the annular pellet also receives much higher neutron fluence, which may induce severe ...
openaire   +1 more source

Safety Analysis of High-Power-Density Annular Fuel for PWRs

Nuclear Technology, 2007
This paper assesses the performance of internally and externally cooled annular fuel in a four-loop pressurized water reactor during a variety of transients and accidents, namely, the loss of flow accident (LOFA), main steam line break (MSLB), large break loss of coolant accident (LBLOCA), and rod ejection accident (REA).
Dandong Feng, Paolo Morra, Ramu Sundaram, Won-Jae Lee, Pradip Saha, Pavel Hejzlar, Mujid S. Kazimi   +6 more
openaire   +1 more source

Annular fuel neutronic analysis

Annals of Nuclear Energy, 2023
André Luiz Pereira Rebello Júnior, Harish C. Huria, Aquilino Senra Martinez, Alessandro da Cruz Gonçalves   +3 more
openaire   +1 more source

Investigating an annular nozzle on combustion products of hydrocarbon fuels

Thermophysics and Aeromechanics, 2013
Full-scale and computational experiments were used to investigate the flows in the jet thrust unit with annular nozzle and deflector in the form of a spherical segment. The used working gas was the combustion products of air mixtures with acetylene, gas-phase aviation kerosene, and natural gas.
V. A. Levin, N. E. Afonina, V. G. Gromov, G. D. Smekhov, A. N. Khmelevsky, V. V. Markov   +5 more
openaire   +1 more source

Pre-conceptual core design of SCWR with annular fuel rods

Nuclear Engineering and Design, 2014
Abstract The new design of supercritical light water reactor was proposed using annular fuel assemblies. Annular fuel consists of several concentric rings. Feed water flows through the center and outside of the fuel to give both internal and external cooling.
Chuanqi Zhao, Liangzhi Cao, Hongchun Wu, Youqi Zheng   +3 more
openaire   +1 more source

Prospects for using annular fuel elements in nuclear power engineering

Thermal Engineering, 2010
Prospects for enhancing heat transfer in the core of reactor plants by using annular fuel elements are considered. Advantages of changing over to use of annular fuel elements are analyzed, and problems that must be solved are identified. It is shown that application of annular fuel elements makes it possible to increase the specific power of a reactor ...
V. N. Blinkov, E. A. Boltenko, I. V. Elkin, O. I. Melikhov, S. L. Solov’ev   +4 more
openaire   +1 more source