A mathematical modeling in applying hydraulic element method for a hydraulic buffer and its performance analysis

被引：1

作者：

Chen, Kefei ^{[1
]}

Li, Peng ^{[1
]}

Fan, C. G. ^{[1
]}

Yang, Y. R. ^{[1
]}

Yue, T. ^{[2
]}

Zhu, F. W. ^{[2
]}

Yuan, P. ^{[2
]}

机构：

[1] Southwest Jiaotong Univ, Sch Mech & Aerosp Engn, Appl Mech & Struct Safety Key Lab Sichuan Prov, Chengdu 610031, Peoples R China

[2] Nucl Power Inst China, Chengdu 610041, Peoples R China

来源：

ANNALS OF NUCLEAR ENERGY | 2023年 / 186卷

基金：

中国国家自然科学基金;

关键词：

PWR; Control rod; Hydraulic buffer; Hydraulic element; Multi-hole; Impact; NUMERICAL-SIMULATION; WATER; DROP;

D O I：

10.1016/j.anucene.2023.109754

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The hydraulic buffer is the key to decreasing the impact force between the control rod drive system and the fuel assembly in the case of an emergency shutdown of a pressurized water reactor (PWR). This paper proposes a new theoretical modeling method for studying a multi-hole hydraulic buffer featured by the variable number and location of flow holes. Four typical hydraulic elements are proposed, given the relative position of the buffer's spider and cup. The equations of each hydraulic element are firstly derived independently. Then the complete equations of the buffer are completed by assembling the equations of each hydraulic element. The numerical results obtained by this method show good agreement with the experiment results. In addition, the influence of several system parameters on the buffer's dynamical characteristics is explored by using energy dissipation rate efficiency and energy dissipation rate power.

引用

页数：20

共 23 条

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