Theoretical Analysis of Density Wave Instability Phenomena of Supercritical Fluid

被引：0

作者：

Zang J. ^{[1
]}

Li Y. ^{[1
]}

Zeng X. ^{[1
]}

Yan X. ^{[1
]}

Huang Y. ^{[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 | 2021年 / 42卷

关键词：

Density wave instability; Linear stability; Supercritical water;

D O I：

10.13832/j.jnpe.2021.S1.0109

中图分类号：

学科分类号：

摘要：

The density wave instability of supercritical water is an important criterion for SCWR thermal hydraulic design. This paper proposed a supercritical water density wave instability theoretical method based on the linear stability analysis used in subcritical parallel pipe density wave instability, combined with the method of secondary phase change theory for supercritical water. The calculation method was verified with the experiments, which suggested its reasonability. The method was used to analyze the effects of flow resistance, inlet temperature and pressure effect on flow instability. The research results showed that, the increasing of the inlet resistance or the decreasing of the outlet resistance could enhance the system stability. Compared with subcritical condition, the supercritical condition is less prone to flow instability. Copyright ©2021 Nuclear Power Engineering. All rights reserved.

引用

页码：109 / 112

页数：3

共 8 条

[1] XIONG T, YAN X, XIAO Z J, Et al., Experimental study on flow instability in parallel channels with supercritical water, Annals of Nuclear Energy, 48, 2, pp. 60-67, (2012)
[2] XIONG T, YAN X, HUANG S F, Et al., Modeling and analysis of supercritical flow instability in parallel channels, International Journal of Heat and Mass Transfer, 57, 3, pp. 549-557, (2013)
[3] XI X, XIAO Z J, YAN X, Et al., The axial power distribution validation of the SCWR fuel assembly with coupled neutronics-thermal hydraulics method, Nuclear Engineering and Design, 258, 5, pp. 157-163, (2013)
[4] XI X, XIAO Z J, YAN X, Et al., An experimental investigation of flow instability between two heated parallel channels with supercritical water, Nuclear Engineering and Design, 278, 4, pp. 171-181, (2014)
[5] AMBROSINI W, SHARABI M., Dimensionless parameters in stability analysis of heated channels with fluids at supercritical pressures, USA:Proceedings of 14th International Conference on Nuclear Engineering, (2006)
[6] CHATOORGOON V, SHAH M, DUFFEY R., Linear predictions of supercritical flow instability in parallel channels, China: 3rd Int. Symposium on SCWR - Design and Technology, (2007)
[7] GUIDO G, CONVERTI J, CLAUSSE A., Density-wave oscillations in parallel channels- an analytical approach, Nuclear Engineering and Design, 125, 2, pp. 121-136, (1991)
[8] 1

← 1 →