The analysis of thermal hydraulic performance under three abnormal conditions is very important for the design of China spallation neutron source (CSNS) target system, which could provide some important information for developing an emergency plan. In this study, we first introduce the design of the CSNS target system and create a three-dimensional physical model, calculate the heat source and decay heat distribution using the MCNPX 2.5 Monte Carlo code and the CINDER’90 activation code, and simulate and analyze the temperature distribution in the tungsten target and the steel container under normal operation using fluent. By using the same model, the thermal hydraulic characteristics are analyzed under three different abnormal conditions including power failure, off-center of proton beam, and cooling water failure. The results show that in order to keep the cooling water temperature below the boil point at normal operating pressure, the emergency power for the cooling water should start immediately after power failure. The maximum temperature of the beam window and the up plate increases by about 8 °C when the offsetting distance of proton beam is 5 mm along z direction. The cooling water will not effectively take all away the heat when the flow rate of the cooling water drops below 72% of the normal setpoint.
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Thermal Hydraulic Analysis of China Spallation Neutron Source Target System Under Abnormal Situations
Jun-Hong Hao,
Jun-Hong Hao
Key Laboratory for Thermal Science and
Power Engineering of Ministry of Education,
Department of Engineering Mechanics,
Tsinghua University,
Beijing 100084, China
Power Engineering of Ministry of Education,
Department of Engineering Mechanics,
Tsinghua University,
Beijing 100084, China
Search for other works by this author on:
Qun Chen,
Qun Chen
Key Laboratory for Thermal Science and
Power Engineering of Ministry of Education,
Department of Engineering Mechanics,
Tsinghua University,
Beijing 100084, China
e-mail: chenqun@tsinghua.edu.cn
Power Engineering of Ministry of Education,
Department of Engineering Mechanics,
Tsinghua University,
Beijing 100084, China
e-mail: chenqun@tsinghua.edu.cn
Search for other works by this author on:
You-Lian Lu,
You-Lian Lu
China Spallation Neutron Source,
Institute of High Energy Physics,
Chinese Academy of Sciences,
Dongguan 523803, China;
Institute of High Energy Physics,
Chinese Academy of Sciences,
Dongguan 523803, China;
Dongguan Institute of Neutron Science (DINS),
Dongguan 523808, China
Dongguan 523808, China
Search for other works by this author on:
Song-Lin Wang,
Song-Lin Wang
China Spallation Neutron Source,
Institute of High Energy Physics,
Chinese Academy of Sciences,
Dongguan 523803, China;
Institute of High Energy Physics,
Chinese Academy of Sciences,
Dongguan 523803, China;
Dongguan Institute of Neutron Science (DINS),
Dongguan 523808, China
Dongguan 523808, China
Search for other works by this author on:
Quan-Zhi Yu,
Quan-Zhi Yu
Beijing National Laboratory
for Condensed Matter Physics,
Institute of Physics,
Chinese Academy of Sciences,
Beijing 100190, China
for Condensed Matter Physics,
Institute of Physics,
Chinese Academy of Sciences,
Beijing 100190, China
Search for other works by this author on:
Quan Ji,
Quan Ji
China Spallation Neutron Source,
Institute of High Energy Physics,
Chinese Academy of Sciences,
Dongguan 523803, China;
Institute of High Energy Physics,
Chinese Academy of Sciences,
Dongguan 523803, China;
Dongguan Institute of Neutron Science (DINS),
Dongguan 523808, China
Dongguan 523808, China
Search for other works by this author on:
Tian-Jiao Liang
Tian-Jiao Liang
China Spallation Neutron Source,
Institute of High Energy Physics,
Chinese Academy of Sciences,
Dongguan 523803, China;
Institute of High Energy Physics,
Chinese Academy of Sciences,
Dongguan 523803, China;
Dongguan Institute of Neutron Science (DINS),
Dongguan 523808, China
Dongguan 523808, China
Search for other works by this author on:
Jun-Hong Hao
Key Laboratory for Thermal Science and
Power Engineering of Ministry of Education,
Department of Engineering Mechanics,
Tsinghua University,
Beijing 100084, China
Power Engineering of Ministry of Education,
Department of Engineering Mechanics,
Tsinghua University,
Beijing 100084, China
Qun Chen
Key Laboratory for Thermal Science and
Power Engineering of Ministry of Education,
Department of Engineering Mechanics,
Tsinghua University,
Beijing 100084, China
e-mail: chenqun@tsinghua.edu.cn
Power Engineering of Ministry of Education,
Department of Engineering Mechanics,
Tsinghua University,
Beijing 100084, China
e-mail: chenqun@tsinghua.edu.cn
You-Lian Lu
China Spallation Neutron Source,
Institute of High Energy Physics,
Chinese Academy of Sciences,
Dongguan 523803, China;
Institute of High Energy Physics,
Chinese Academy of Sciences,
Dongguan 523803, China;
Dongguan Institute of Neutron Science (DINS),
Dongguan 523808, China
Dongguan 523808, China
Song-Lin Wang
China Spallation Neutron Source,
Institute of High Energy Physics,
Chinese Academy of Sciences,
Dongguan 523803, China;
Institute of High Energy Physics,
Chinese Academy of Sciences,
Dongguan 523803, China;
Dongguan Institute of Neutron Science (DINS),
Dongguan 523808, China
Dongguan 523808, China
Quan-Zhi Yu
Beijing National Laboratory
for Condensed Matter Physics,
Institute of Physics,
Chinese Academy of Sciences,
Beijing 100190, China
for Condensed Matter Physics,
Institute of Physics,
Chinese Academy of Sciences,
Beijing 100190, China
Quan Ji
China Spallation Neutron Source,
Institute of High Energy Physics,
Chinese Academy of Sciences,
Dongguan 523803, China;
Institute of High Energy Physics,
Chinese Academy of Sciences,
Dongguan 523803, China;
Dongguan Institute of Neutron Science (DINS),
Dongguan 523808, China
Dongguan 523808, China
Tian-Jiao Liang
China Spallation Neutron Source,
Institute of High Energy Physics,
Chinese Academy of Sciences,
Dongguan 523803, China;
Institute of High Energy Physics,
Chinese Academy of Sciences,
Dongguan 523803, China;
Dongguan Institute of Neutron Science (DINS),
Dongguan 523808, China
Dongguan 523808, China
1Corresponding author.
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received November 20, 2015; final manuscript received August 30, 2016; published online September 27, 2016. Assoc. Editor: Ali Khounsary.
J. Heat Transfer. Jan 2017, 139(1): 014504 (6 pages)
Published Online: September 27, 2016
Article history
Received:
November 20, 2015
Revised:
August 30, 2016
Citation
Hao, J., Chen, Q., Lu, Y., Wang, S., Yu, Q., Ji, Q., and Liang, T. (September 27, 2016). "Thermal Hydraulic Analysis of China Spallation Neutron Source Target System Under Abnormal Situations." ASME. J. Heat Transfer. January 2017; 139(1): 014504. https://doi.org/10.1115/1.4034720
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