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Volume 41 Issue 5
Sep.  2020
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Ma Baisong, Zhuang Yaping, Qie Weiqing. A Brief Introduction of Design Optimization for AP1000 Condensation Return[J]. Nuclear Power Engineering, 2020, 41(5): 79-83.
Citation: Ma Baisong, Zhuang Yaping, Qie Weiqing. A Brief Introduction of Design Optimization for AP1000 Condensation Return[J]. Nuclear Power Engineering, 2020, 41(5): 79-83.

A Brief Introduction of Design Optimization for AP1000 Condensation Return

  • Publish Date: 2020-09-27
  •  During any non-LOCA event, the average temperature of the reactor cooling system (RCS) should be decreased to 215.6℃within 36 hours in AP1000 nuclear power plant. However, this goal cannot be achieved because the rate of condensate return was far lower than that expected. Through the analysis and verification of the dome condensation drop test, the path of condensation loss was determined. Therefore, a series of the design modifications to the polar crane girder, the internal stiffener and the condensation return gutter were carried out. Lastly, the safety shutdown temperature evaluation showed that the AP1000 plant could reduce the RCS average temperature to 215.6℃ within 34.6 hours after the loss of normal feedwater and the loss of off-site power concurrently.

     

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      沈阳化工大学材料科学与工程学院 沈阳 110142

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