Cryogenic thermal analysis of the HANARO cold neutron moderator cell

2008 ◽  
Vol 35 (5) ◽  
pp. 583-588 ◽  
Author(s):  
Gee Y. Han ◽  
Kye H. Lee ◽  
Heonil Kim
Keyword(s):  
Thermal Analysis ◽  
Cold Neutron ◽  
Neutron Moderator ◽  
Moderator Cell

Gain Factor of the Pelletized Cold Neutron Moderator at 22 K

2020 ◽  
Vol 14 (3) ◽  
pp. 434-436
Author(s):  
M. V. Bulavin ◽  
A. A. Belyakov ◽  
A. E. Verkhoglyadov ◽  
S. A. Kulikov ◽  
K. A. Mukhin
Keyword(s):  
Cold Neutron ◽  
Gain Factor ◽  
Neutron Moderator

On the theory of pneumotransport of beads in cold neutron moderator of the IBR-2 reactor

2017 ◽  
Vol 14 (3) ◽  
pp. 520-532
Author(s):  
M. V. Bulavin ◽  
A. V. Kazakov ◽  
E. P. Shabalin
Keyword(s):  
Cold Neutron ◽  
Neutron Moderator

Thermo-hydraulic test of the moderator cell of LH2 cold neutron source at BNC

2000 ◽  
Vol 276-278 ◽  
pp. 214-215 ◽  
Author(s):  
T. Grósz ◽  
T. Hargitai ◽  
V.A. Mityukhlyaev ◽  
L. Rosta ◽  
A.P. Serebrov ◽  
...  
Keyword(s):  
Neutron Source ◽  
Cold Neutron ◽  
Hydraulic Test ◽  
Cold Neutron Source ◽  
Moderator Cell

Self-regulating characteristics of a cold neutron source with a cylindrical-annulus moderator cell

2002 ◽  
Vol 311 (1-2) ◽  
pp. 164-172 ◽  
Author(s):  
Takeshi Kawai ◽  
Hirofumi Yoshino ◽  
Yuji Kawabata ◽  
Masahiro Hino ◽  
Chien-Hsiung Lee ◽  
...  
Keyword(s):  
Neutron Source ◽  
Cold Neutron ◽  
Cylindrical Annulus ◽  
Cold Neutron Source ◽  
Moderator Cell

Compact and easy to use mesitylene cold neutron moderator for CANS

2018 ◽  
Vol 551 ◽  
pp. 377-380
Author(s):  
T. Cronert ◽  
J.P. Dabruck ◽  
M. Klaus ◽  
C. Lange ◽  
P. Zakalek ◽  
...  
Keyword(s):  
Cold Neutron ◽  
Neutron Moderator

Thermal and mechanical characteristics of the moderator cell in a cold neutron source

2012 ◽  
Vol 50 ◽  
pp. 1-7 ◽  
Author(s):  
Shuo Sun ◽  
Yuntao Liu ◽  
Hongli Wang ◽  
Dongfeng Chen ◽  
Quanke Feng ◽  
...  
Keyword(s):  
Neutron Source ◽  
Mechanical Characteristics ◽  
Cold Neutron ◽  
Cold Neutron Source ◽  
Moderator Cell

Control system of pelletized cold neutron moderator at the IBR-2 reactor

2015 ◽  
Vol 12 (6) ◽  
pp. 773-777 ◽  
Author(s):  
A. Belyakov ◽  
M. Bulavin ◽  
A. Chernikov ◽  
A. Churakov ◽  
S. Kulikov ◽  
...  
Keyword(s):  
Control System ◽  
Cold Neutron ◽  
Neutron Moderator

scholarly journals Using CFD as Preventative Maintenance Tool for the Cold Neutron Source Thermosiphon System

2016 ◽  
Vol 2016 ◽  
pp. 1-11
Author(s):  
Mark Ho ◽  
Yeongshin Jeong ◽  
Haneol Park ◽  
Guan Heng Yeoh ◽  
Weijian Lu
Keyword(s):  
Natural Convection ◽  
Neutron Source ◽  
Cold Neutron ◽  
Numerical Models ◽  
Normal Operation ◽  
Transient Condition ◽  
Decay Heat ◽  
Experimental Heat ◽  
Cold Neutron Source ◽  
Moderator Cell

The cold neutron source (CNS) system of the Open Pool Australian Light-Water (OPAL) reactor is a 20 L cryogenically cooled liquid deuterium thermosiphon system. The CNS is cooled by forced convective helium which is held at room temperature during stand-by (SO) mode and at ~20 K during normal operation (NO) mode. When helium cooling stops, the reactor is shut down to prevent the moderator cell from overheating. This computational fluid dynamics (CFD) study aims to determine whether the combined effects of conduction and natural convection would provide sufficient cooling for the moderator cell under the influence of reactor decay heat after reactor shutdown. To achieve this, two commercial CFD software packages using an identical CFD mesh were first assessed against an experimental heat transfer test of the CNS. It was found that both numerical models were valid within the bounds of experimental uncertainty. After this, one CFD model was used to simulate the thermosiphon transient condition after the reactor is shut down. Two independent shutdown conditions of different decay-heat power profiles were simulated. It was found that the natural convection and conduction cooling in the thermosiphon were sufficient for dissipating both decay-heat profiles, with the moderator cell remaining below the safe temperature of 200°C.

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