Transient Characteristics Analysis of Single Parameter Disturbance in Molten Salt Reactor

Chen Guoyu; Li Minghai; Zou Yang; Xu Hongjie

doi:10.13832/j.jnpe.2022.05.0012

Volume 43 Issue 5

Oct. 2022

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Chen Guoyu, Li Minghai, Zou Yang, Xu Hongjie. Transient Characteristics Analysis of Single Parameter Disturbance in Molten Salt Reactor[J]. Nuclear Power Engineering, 2022, 43(5): 12-19. doi: 10.13832/j.jnpe.2022.05.0012

Citation:

Chen Guoyu, Li Minghai, Zou Yang, Xu Hongjie. Transient Characteristics Analysis of Single Parameter Disturbance in Molten Salt Reactor[J]. Nuclear Power Engineering, 2022, 43(5): 12-19. doi: 10.13832/j.jnpe.2022.05.0012

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Transient Characteristics Analysis of Single Parameter Disturbance in Molten Salt Reactor

doi: 10.13832/j.jnpe.2022.05.0012

Chen Guoyu^{1, 2
,},
Li Minghai^{1
,
,},
Zou Yang¹,
Xu Hongjie¹

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: 2021-10-28
Rev Recd Date: 2021-11-29
Publish Date: 2022-10-12

Abstract

Abstract

As an innovative reactor, the thermal-hydraulic characteristics of molten salt reactor are very different from other reactors. Disturbance transient analysis helps to fundamentally understand its safety characteristics and operating conditions. In order to study the transient characteristics of molten salt reactor operation, this study takes liquid fuel molten salt reactor (MSR) as the research object, and uses the modified RELAP5/MOD4.0 program to carry out disturbance transient analysis under steady-state operation conditions. Disturbance variables include mass flow rate of primary circuit, mass flow rate of secondary circuit, mass flow rate of air radiator and inlet air temperature of air radiator. Main operating parameters, such as power, core inlet and outlet temperature, secondary circuit inlet and outlet temperature, and characteristic time, are analyzed. The results show that the final state of the MSR under various disturbance transients tends to be stable without severe transient changes, which is an intuitive characterization of its inherent stability characteristics. According to the change of power and temperature under disturbance, the control method of power and different circuit temperature is proposed.
- Molten salt reactor（MSR）,
- Transient characteristics,
- RELAP5,
- Disturbance

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References(21)

References

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