Temperature field at the surface of the peripheral assembly fuel elements in a nuclear reactor with a liquid-metal coolant

1979 ◽  
Vol 46 (5) ◽  
pp. 399-401
Author(s):  
B. P. Shulyndin
Keyword(s):  
Temperature Field ◽  
Liquid Metal ◽  
Nuclear Reactor ◽  
Liquid Metal Coolant ◽  
Fuel Elements ◽  
Metal Coolant

Experimental Activities on Thermal Hydraulics of Heavy Liquid Metal Flow in Typical Elements of Nuclear Power Stations

2018 ◽  
Author(s):  
O. Kashinsky ◽  
A. Kurdyumov ◽  
P. Lobanov ◽  
A. Svetonosov ◽  
M. Vorobyev ◽  
...  
Keyword(s):  
Experimental Data ◽  
Experimental Study ◽  
Temperature Field ◽  
Liquid Metal ◽  
Point Of View ◽  
Heavy Liquid ◽  
Heating Zone ◽  
Thermal Hydraulics ◽  
Liquid Metal Coolant ◽  
Metal Coolant

The report presents the results of an experimental study of the thermal hydraulics of a heavy liquid-metal coolant in the elements of a reactor installation. Hydrodynamics and heat transfer are considered in the coolant flow in a model assembly of vertical rods and in a T-junction. These tasks are important both from the point of view of justifying the design solutions of a reactor plant with a heavy liquid-metal coolant, and from the point of view of verification of calculation codes. The results of an experimental study of the temperature distribution in the 7-rod experimental model of a fuel assembly with spacer grids are presented. To create a thermal heterogeneity, a heating zone was created in one of the rods. The evolution of the temperature field is studied with the variation of the mutual location of the heated, measuring rods and the spacer grid. Validation measurements of fluid velocity profiles and its pulsations in a similar flow in a similar geometry of a water coolant have also been carried out. Results of experimental study of mixing of liquid metal with different temperatures in a T-junction also are presented. The liquid with higher temperature was injected through the branch of the T-junction. Data on wall temperature evolution for the mixing of hot and cold liquids were obtained for different ratios of flow rates of main and side flows. Experimental data on fluctuational and spectral structure of temperature field in the mixing zone were obtained for different flow conditions. Results obtained may serve as a basis for construction of experimental data base for verification of CFD.

Combined Neutronics Calculation of the Radiation Protection for a Nuclear Reactor with Heavy Liquid-Metal Coolant

Atomic Energy ◽  
2019 ◽  
Vol 126 (1) ◽  
pp. 12-15
Author(s):  
E. A. Zemskov ◽  
I. A. Lyamtsev ◽  
K. G. Mel’nikov ◽  
I. V. Tormyshev ◽  
I. R. Suslov
Keyword(s):  
Liquid Metal ◽  
Radiation Protection ◽  
Nuclear Reactor ◽  
Heavy Liquid ◽  
Liquid Metal Coolant ◽  
Metal Coolant

Modeling of Gas-Phase Transport in Heavy Liquid-Metal Coolant Flow in the HYDRA-IBRAE/LM Thermohydraulic Code

Atomic Energy ◽  
2021 ◽  
Vol 129 (3) ◽  
pp. 127-134
Author(s):  
V. M. Alipchenkov ◽  
Ya. V. Grudtsyn ◽  
N. A. Mosunova
Keyword(s):  
Liquid Metal ◽  
Gas Phase ◽  
Coolant Flow ◽  
Heavy Liquid ◽  
Liquid Metal Coolant ◽  
Gas Phase Transport ◽  
Phase Transport ◽  
Metal Coolant

Modeling the flow of liquid-metal coolant in the T-shaped mixer

2016 ◽  
Vol 23 (3) ◽  
pp. 379-382
Author(s):  
O. N. Kashinsky ◽  
P. D. Lobanov ◽  
A. S. Kurdyumov ◽  
N. A. Pribaturin
Keyword(s):  
Liquid Metal ◽  
Liquid Metal Coolant ◽  
Metal Coolant

Recent Advancement on Liquid Metal Cooling for Thermal Management of Computer Chip

2010 ◽  
Author(s):  
Jing Liu ◽  
Yue-Guang Deng ◽  
Zhong-Shan Deng
Keyword(s):  
Liquid Metal ◽  
Thermal Management ◽  
New Technology ◽  
Air Cooling ◽  
Liquid Metal Coolant ◽  
Cooling Device ◽  
Chip Cooling ◽  
Cooling Method ◽  
Liquid Metal Cooling ◽  
Metal Coolant

Efficient cooling of a high performance computer chip has been an extremely important however becoming more and more tough issue. The recently invented liquid metal cooling method is expected to pave the way for high flux heat dissipation which is hard to tackle otherwise by many existing conventional cooling strategies. However, as a new thermal management method, its application also raised quite a few challenging fundamental and practical issues for solving. To illustrate the development of the new technology, this talk is dedicated to present an overview on the latest advancements made in the author’s lab in developing the new generation chip cooling device based on the liquid metal coolant with melting point around room temperature. The designing and optimization of the cooling device and component will be discussed. Several major barriers to prevent the new method from practical application such as erosion between liquid metal coolant and its substrate material will be outlined with good solutions clarified. Performance comparison between the new chip cooling method with commercially available products with highest quality such as air cooling, water cooling and heat pipe cooling devices were evaluated. Typical examples of using liquid metal cooling for the thermal management of a real PC or even super computer will be demonstrated. Further, miniaturizations on the prototype device by extending it as a MEMS cooling device or mini/micro channel liquid metal cooling device will also be explained. Along with the development of the hardware, some fundamental heat transfer issues in characterizing the liquid metal cooling device will be discussed through numerical or analytical model. Future challenging issues in pushing the new technology into large scale practices will be raised. From all the outputs obtained so far, it can be clearly seen that the new cooling strategy will find very promising and significant applications in a wide variety of engineering situations whenever thermal managements or heat transport are needed.

Formation of the Structure of a Eutectic Alloy of the Nb – Si System During Directed Crystallization with Liquid-Metal Coolant

2017 ◽  
Vol 59 (7-8) ◽  
pp. 513-517
Author(s):  
Yu. A. Bondarenko ◽  
A. B. Echin ◽  
M. Yu. Kolodyazhnyi ◽  
V. A. Surova
Keyword(s):  
Liquid Metal ◽  
Eutectic Alloy ◽  
Directed Crystallization ◽  
Liquid Metal Coolant ◽  
Metal Coolant

Problems of Long Term and Safe Storage of Unloaded and Non-Unloaded Spent Nuclear Fuel for Nuclear Submarines with Liquid-Metal Coolant

2003 ◽  
pp. 341-348 ◽  
Author(s):  
D. Pankratov ◽  
V. Andreyanov ◽  
M. Bugrevev ◽  
A. Dedoul ◽  
Ye. Efimov ◽  
...  
Keyword(s):  
Liquid Metal ◽  
Nuclear Fuel ◽  
Spent Nuclear Fuel ◽  
Liquid Metal Coolant ◽  
Safe Storage ◽  
Metal Coolant

Thermohydraulics of Alkaline Liquid-Metal Coolant: A Retrospective-Perspective Look

Atomic Energy ◽  
2020 ◽  
Vol 128 (4) ◽  
pp. 197-203
Author(s):  
A. P. Sorokin ◽  
Yu. A. Kuzina
Keyword(s):  
Liquid Metal ◽  
Liquid Metal Coolant ◽  
Metal Coolant

Neutron Imaging Feasibility of Liquid Metal Coolant Behaviors Inside a High-Temperature Alloy Heat Pipe

2011 ◽  
Author(s):  
K. D. Kihm ◽  
D. Hussey ◽  
D. M. Pratt ◽  
A. D. Swanson
Keyword(s):  
Liquid Metal ◽  
Heat Pipe ◽  
Neutron Imaging ◽  
Liquid Sodium ◽  
Liquid Metal Coolant ◽  
Beam Scattering ◽  
Time Requirements ◽  
Alloy Heat ◽  
Metal Coolant

Experimental study has been conducted for multiscale characterization of liquid metal (Na) transport within a heat pipe using a neutron imaging technique. Feasibility of nonintrusive imaging of liquid sodium contained inside a nickel alloy heat pipe has been examined for the imaging resolution, exposure time requirements, background noises, and other basic considerations associated with neutron beam scattering. Preliminary results of neutron imaging show fairly acceptable feasibility of neutron imaging of liquid sodium contained inside an alloy jacket. Furthermore, challenges are identified to enhance the spatial and thermal resolutions in order to achieve more physically demanding imaging of the liquid metal thermal transport behaviors.

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