Study on the Effect of Inclination Angle on the Natural Convection of Molten Salt in Heat Pipe Cooled Molten Salt Reactor Core

Chen Zehan; Chen Xingwei; Dai Ye; Zou Yang

doi:10.13832/j.jnpe.2023.04.0079

Volume 44 Issue 4

Aug. 2023

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Chen Zehan, Chen Xingwei, Dai Ye, Zou Yang. Study on the Effect of Inclination Angle on the Natural Convection of Molten Salt in Heat Pipe Cooled Molten Salt Reactor Core[J]. Nuclear Power Engineering, 2023, 44(4): 79-87. doi: 10.13832/j.jnpe.2023.04.0079

Citation:

Chen Zehan, Chen Xingwei, Dai Ye, Zou Yang. Study on the Effect of Inclination Angle on the Natural Convection of Molten Salt in Heat Pipe Cooled Molten Salt Reactor Core[J]. Nuclear Power Engineering, 2023, 44(4): 79-87. doi: 10.13832/j.jnpe.2023.04.0079

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Study on the Effect of Inclination Angle on the Natural Convection of Molten Salt in Heat Pipe Cooled Molten Salt Reactor Core

doi: 10.13832/j.jnpe.2023.04.0079

Chen Zehan^{1, 2
,},
Chen Xingwei¹,
Dai Ye^{1, 2
,
,},
Zou Yang^{1, 2}

1.
Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
2.
University of Chinese Academy of Sciences, Beijing, 100049, China

Received Date: 2022-08-22
Accepted Date: 2022-10-11
Rev Recd Date: 2022-09-30
Publish Date: 2023-08-15

Abstract

Abstract

The inclination angle of heat pipe-cooled molten salt reactor (MSR) core has an important influence on the core temperature distribution and local hot spots. In order to obtain the natural convection heat transfer characteristics of molten salt in the core at different inclination angles, optimize the core design and improve the system safety, the three-dimensional modeling of the core is carried out, and the temperature field and flow field of the natural convection of molten salt in the core are analyzed for both horizontal and vertical placement by numerical simulation with the software Fluent. At the same time, the influence of core inclination angle change on the core temperature field and local hot spots is discussed. The results show that the local hot spots always appear in the upper part of the core, and the temperature field and flow field of the core are more unstable when the core is placed horizontally than vertically. When the inclination angle is in the range of 5°-10°, the local hot spot temperature is the highest, and the hot spot temperature is the lowest when the core is vertical. The simulation results show the natural convection characteristics of molten salt in the core, and provide a reference for the thermal design of the heat pipe-cooled MSR.
- Heat pipe-cooled MSR,
- Inclination angle,
- Natural convection,
- Heat transfer

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References(25)

References

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