Experimental Research on Effect of Nuclear Feedback on Flow Instability in Parallel Channels

被引：0

作者：

Xie F. ^{[1
]}

Xi Z. ^{[1
]}

Yang Z. ^{[1
]}

机构：

[1] CNNC Key Laboratory on Nuclear Reactor Thermal Hydraulics Technology, Nuclear Power Institute of China, Chengdu

来源：

Hedongli Gongcheng/Nuclear Power Engineering | 2018年 / 39卷 / 02期

关键词：

Flow instability; Nuclear feedback; Parallel channels;

D O I：

10.13832/j.jnpe.2018.02.0005

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

As the existence of nuclear feedback in nuclear reactors,coupled nuclear-thermo-hydraulic instability will occur in the reactor. Coupled-nuclear-thermal-hydraulic instabilities were investigated employing experimental and theoretical methods in this paper. The experimental research on coupled nuclear-thermo-hydraulic instability in parallel channels was performed and the effect of the nuclear feedback on flow instability has been studied. The experiment is carried out with and without nuclear coupled respectively, and the effect of void reactivity coefficient and temperature reactivity coefficient on characteristic and boundaries of flow instability has been studied. Based on the experimental data, the tendency of the characteristics of effect is analyzed, and the stability boundaries is obtained. The results from the research in this paper show that: void reactivity coefficient, temperature reactivity coefficient and fuel time constant have a significant effect on characteristics and boundaries of flow instability. © 2018, Editorial Board of Journal of Nuclear Power Engineering. All right reserved.

引用

页码：5 / 9

页数：4

共 2 条

[1]

Park G.-C., Michaelz, Podowski, Et al., The development of A closed-Form analytical model for the stability analysis of nuclear-coupled density-wave oscillations in boiling water nuclear reactors, Nuclear Engineering and Design, 92, pp. 253-281, (1986)

[2]

March-Leuba J., Rey J.M., Coupled thermohydraulic-neutronic instabilities in boiling water nuclear reactors: A review of the state of the art, Nuclear Engineering and Design, 145, pp. 97-111, (1993)

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