Numerical Simulation Research on Three-dimensional Temperature Field and Flow Field at the Top of Reactor under Natural Convection Conditions

Tang Xiangdong; Li Wei

doi:10.13832/j.jnpe.2023.S2.0044

Volume 44 Issue S2

Dec. 2023

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Tang Xiangdong, Li Wei. Numerical Simulation Research on Three-dimensional Temperature Field and Flow Field at the Top of Reactor under Natural Convection Conditions[J]. Nuclear Power Engineering, 2023, 44(S2): 44-49. doi: 10.13832/j.jnpe.2023.S2.0044

Citation:

Tang Xiangdong, Li Wei. Numerical Simulation Research on Three-dimensional Temperature Field and Flow Field at the Top of Reactor under Natural Convection Conditions[J]. Nuclear Power Engineering, 2023, 44(S2): 44-49. doi: 10.13832/j.jnpe.2023.S2.0044

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Numerical Simulation Research on Three-dimensional Temperature Field and Flow Field at the Top of Reactor under Natural Convection Conditions

doi: 10.13832/j.jnpe.2023.S2.0044

Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2023-07-11
Rev Recd Date: 2023-08-16
Publish Date: 2023-12-30

Abstract

Abstract

There are many equipment at the top of reactor in PWR, and the temperature and flow fields are complex. In order to evaluate the feasibility of cooling the control rod drive mechanism (CRDM) by natural convection, based on FLUENT software, the numerical simulation of the reactor top structure under natural convection conditions was carried out, and the flow field, temperature field distribution and the maximum coil temperature rise under four conditions were obtained. The simulation results show that under different operating conditions, the heat generated by CRDM operation can be completely taken out of the pit by natural convection, and there is no pit heat. The coil temperature of the CRDM will not exceed its operating temperature limit. This research can provide an important basis for cooling the CRDM using natural convection.
- PWR,
- CRDM,
- Temperature field,
- Natural convection

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References(6)

References

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