Experimental Study on Two-phase Natural Circulation Characteristics under Low-voltage and Low-power Conditions

Liu Xiaoya; Zhang Yongfa; Jiang Lizhi; Jiao Meng; Zhao Xinwen; Wang Xinming; Wang Xiaolong

doi:10.13832/j.jnpe.2022.05.0082

Volume 43 Issue 5

Oct. 2022

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Article Navigation > Nuclear Power Engineering > 2022 > 43(5): 82-88

Liu Xiaoya, Zhang Yongfa, Jiang Lizhi, Jiao Meng, Zhao Xinwen, Wang Xinming, Wang Xiaolong. Experimental Study on Two-phase Natural Circulation Characteristics under Low-voltage and Low-power Conditions[J]. Nuclear Power Engineering, 2022, 43(5): 82-88. doi: 10.13832/j.jnpe.2022.05.0082

Citation:

Liu Xiaoya, Zhang Yongfa, Jiang Lizhi, Jiao Meng, Zhao Xinwen, Wang Xinming, Wang Xiaolong. Experimental Study on Two-phase Natural Circulation Characteristics under Low-voltage and Low-power Conditions[J]. Nuclear Power Engineering, 2022, 43(5): 82-88. doi: 10.13832/j.jnpe.2022.05.0082

Citation:

Liu Xiaoya, Zhang Yongfa, Jiang Lizhi, Jiao Meng, Zhao Xinwen, Wang Xinming, Wang Xiaolong. Experimental Study on Two-phase Natural Circulation Characteristics under Low-voltage and Low-power Conditions[J]. Nuclear Power Engineering, 2022, 43(5): 82-88. doi: 10.13832/j.jnpe.2022.05.0082

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Experimental Study on Two-phase Natural Circulation Characteristics under Low-voltage and Low-power Conditions

doi: 10.13832/j.jnpe.2022.05.0082

College of Nuclear Science and Technology, Naval University of Engineering, Wuhan, 430033, China

Received Date: 2021-09-25
Rev Recd Date: 2021-11-30
Publish Date: 2022-10-12

Abstract

Abstract

Compared with the land-based nuclear power plant, the passive safety system of marine nuclear power plant has lower operating pressure and frequent changes in operating power. Under the condition of two-phase natural circulation, the flow in the passive safety system is more complex and changeable. In order to further study the circulation characteristics of two-phase natural circulation under the condition of low pressure and low power, the principle test bench of two-phase natural circulation is built based on the proportional analysis method, and the influence of power and initial liquid level height on the characteristics of natural circulation under the condition of low pressure is studied. The results show that under low pressure, the pressure and flow of the system after stable operation are affected by the initial liquid level and power. When the power is 50 kW, the higher the initial liquid level is, the greater the pressure after the system is stabilized, but the flow difference is small; When the initial liquid level is constant, the power is in the range of 40% full power to 100% full power. With the increase of power, the pressure after the system is stabilized also gradually increases. This provides a direction for the follow-up research of two-phase natural circulation of the test bench, and also provides a reference for the research of passive safety system of marine nuclear power plant.
- Two-phase natural circulation characteristics,
- Low pressure and low power,
- Theory experiment,
- Proportional analysis method

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References(15)

References

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