Application of droplet motion and phase change model in containment spray system

被引：8

作者：

Zhao, Fulong ^{[1
]}

Yan, Xiao ^{[2
]}

Bo, Hanliang ^{[2
]}

Meng, Tao ^{[1
]}

Zeng, Chen ^{[1
]}

Tan, Sichao ^{[1
]}

机构：

[1] Harbin Engn Univ, Fundamental Sci Nucl Safety & Simulat Technol Lab, Harbin 150001, Heilongjiang, Peoples R China

[2] Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China

来源：

ANNALS OF NUCLEAR ENERGY | 2019年 / 131卷

基金：

国家重点研发计划;

关键词：

Containment spray system; Droplet evaporation; Heat and mass transfer; HEAT; SIMULATION;

D O I：

10.1016/j.anucene.2019.03.026

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 containment spray system is a vital part of the nuclear power plant to reduce the temperature and pressure within the containment during a hypothetical severe accident, which is bound up with the safety of the nuclear reactor. To investigate the performance of the containment spray system, the model coupling the multi-droplets motion and phase change model inducing the local gas parameters surrounding the droplets is formulated. The proposed model is utilized to simulate the droplet spraying process in the containment. The time evolution of various parameters of the containment spray system including the temperature, pressure, steam mass fraction, droplet sizes and trajectories were presented against the experimental results. Furthermore, the influence of the spray droplet parameters on the system performance was analyzed. The results indicate that the system performance is strongly dependent on the radii of the spray droplets, spray mass flow rate and the position distribution of the spraying nozzles, in the range of the temperature, pressure, droplet sizes, velocities and spray mass flow rate investigated. This study presents a droplet motion and phase change model that can be applied to droplet spray characteristics simulation, and performs a systematic analysis of the containment spray system performances. The results can be used to support the design and optimization of spray cooling systems in the containment and other applications. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页码：123 / 137

页数：15

共 29 条

[1] DROPLET VAPORIZATION MODEL FOR SPRAY COMBUSTION CALCULATIONS [J].

ABRAMZON, B ;

SIRIGNANO, WA .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1989, 32 (09) :1605-1618

[2] Simulations of TOSQAN containment spray tests with combined Eulerian CFD and droplet-tracking modelling [J].

Babic, Miroslav ;

Kljenak, Ivo ;

Mavko, Borut .

NUCLEAR ENGINEERING AND DESIGN, 2009, 239 (04) :708-721

[3]

BabiE M., 2007, PORT SLOV 16 INT C N, P1

[4] Effects of trap and reflect particle boundary conditions on particle transport and convective heat transfer for duct flow - A two-way coupling of Eulerian-Lagrangian model [J].

Bovand, Masoud ;

Rashidi, Saman ;

Ahmadi, Goodarz ;

Esfahani, Javad Abolfazli .

APPLIED THERMAL ENGINEERING, 2016, 108 :368-377

[5] Validation of the heat and mass transfer models within a pressurized water reactor containment using the International Standard Problem No. 47 data [J].

Bury, Tomasz ;

Skladzien, Jan ;

Fic, Adam .

ARCHIVES OF THERMODYNAMICS, 2012, 33 (02) :23-46

[6]

Crowe CT, 2012, MULTIPHASE FLOWS WITH DROPLETS AND PARTICLES, 2ND EDITION, P17

[7] The homogeneous and Lagrangian tracking approaches of the spray simulation in the containment [J].

Ding, Peng ;

Liu, Yulan ;

Wang, Biao ;

Li, Wanai ;

Wang, Jiajun .

ANNALS OF NUCLEAR ENERGY, 2017, 101 :203-214

[8] Fire suppression by water sprays [J].

Grant, G ;

Brenton, J ;

Drysdale, D .

PROGRESS IN ENERGY AND COMBUSTION SCIENCE, 2000, 26 (02) :79-130

[9] Numerical simulation of a fuel droplet laden exothermic reacting mixing layer [J].

Khatumria, VC ;

Miller, RS .

INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, 2003, 29 (05) :771-794

[10] Influence of spray characteristics on local light gas mixing in nuclear containment reactor applications [J].

Malet, J. ;

Huang, X. .

COMPUTERS & FLUIDS, 2015, 107 :11-24

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