Application and optimal design of the bionic guide vane to improve the safety serve performances of the reactor coolant pump

Liu Haoran; Wang Xiaofang; Lu Yeming; Yan Yongqi; Zhao Wei; Wu Xiaocui; Zhang Zhigang

doi:10.1016/j.net.2022.01.031

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자료유형: 학술저널

저자정보: Liu Haoran (School of Energy and Power Engineering, Dalian University of Technology) Wang Xiaofang (School of Energy and Power Engineering, Dalian University of Technology) Lu Yeming (School of Energy and Power Engineering, Dalian University of Technology) Yan Yongqi (School of Energy and Power Engineering, Dalian University of Technology) Zhao Wei (Beijing Power Machinery Institute) Wu Xiaocui (Beijing Power Machinery Institute) Zhang Zhigang (Beijing Power Machinery Institute)

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제54권 제7호

발행연도: 2022.7

수록면: 2,491 - 2,509 (19page)

DOI: 10.1016/j.net.2022.01.031

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As an important device in the nuclear island, the nuclear coolant pump can continuously provide power for medium circulation. The vane is one of the stationary parts in the nuclear coolant pump, which is installed between the impeller and the casing. The shape of the vane plays a significant role in the pump's overall performance and stability which are the important indicators during the safety serve process. Hence, the bionic concept is firstly applied into the design process of the vane to improve the performance of the nuclear coolant pump. Taking the scaled high-performance hydraulic model (on a scale of 1:2.5) of the coolant pump as the reference, a united bionic design approach is proposed for the unique structure of the guide vane of the nuclear coolant pump. Then, a new optimization design platform is established to output the optimal bionic vane. Finally, the comparative results and the corresponding mechanism are analyzed. The conclusions can be gotten as: (1) four parameters are introduced to configure the shape of the bionic blade, the significance of each parameter is herein demonstrated; (2) the optimal bionic vane is successfully obtained by the optimization design platform, the efficiency performance and the head performance of which can be improved by 1.6% and 1.27% respectively; (3) when compared to the original vane, the optimized bionic vane can improve the inner flow characteristics, namely, it can reduce the flow loss and decrease the pressure pulsation amplitude; (4) through the mechanism analysis, it can be found out that the bionic structure can induce the spanwise velocity and the vortices, which can reduce drag and suppress the boundary layer separation.

#Reactor coolant pump #Safety serve #Bionic optimization design #Performance analysis #Guide vane

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