Analysis on Air Inlet Problem of Passive Containment Cooling Piping

Chen Shushan; Zhang Jiang; Zhu Linglin; Wang Liangliang; He Junshan

doi:10.13832/j.jnpe.2014.06.0130

Volume 35 Issue 6

Feb. 2025

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Chen Shushan, Zhang Jiang, Zhu Linglin, Wang Liangliang, He Junshan. Analysis on Air Inlet Problem of Passive Containment Cooling Piping[J]. Nuclear Power Engineering, 2014, 35(6): 130-134. doi: 10.13832/j.jnpe.2014.06.0130

Citation:

Chen Shushan, Zhang Jiang, Zhu Linglin, Wang Liangliang, He Junshan. Analysis on Air Inlet Problem of Passive Containment Cooling Piping[J]. Nuclear Power Engineering, 2014, 35(6): 130-134. doi: 10.13832/j.jnpe.2014.06.0130

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Analysis on Air Inlet Problem of Passive Containment Cooling Piping

doi: 10.13832/j.jnpe.2014.06.0130

Shanghai Branch of Design Department of China Nuclear Power Engineering Co. Ltd. Shanghai, 200030, China

Received Date: 2013-12-06
Rev Recd Date: 2014-04-01

Available Online: 2025-02-15

Abstract

Abstract

For analyzing the hydraulic performance and air inlet problem of passive containment cooling system（PCS）, the software FLOWMASTER is used to establish an one-dimensional hydraulic model, and using it, the PCCWST water supply flow rate for 72 hours after accident is calculated; The two-dimensional FLUENT model is used to analyze the air inlet phenomenon. The result indicates that the air will be drawn to the water supply piping after the highest vertical pipe uncovered by water, which creates disadvantage to the water supply piping. And the actual cooling water supply flow rate is slightly less than the flow rate without considering the air inlet.
- Passive,
- Two-dimensional numerical simulation,
- Negative pressure,
- Cooling water flow rate