A 3D Numerical Study of Supersonic Steam Dumping Process of the Pressurizer Relief Tank

Yi Wang; Xiao-Wei Guo; Dong Liu; Ge Wu; Chao Li; Lijuan Chen; Ran Zhao; Canqun Yang

doi:10.3390/en12122276

Energies (Jun 2019)

A 3D Numerical Study of Supersonic Steam Dumping Process of the Pressurizer Relief Tank

Yi Wang,
Xiao-Wei Guo,
Dong Liu,
Ge Wu,
Chao Li,
Lijuan Chen,
Ran Zhao,
Canqun Yang

Affiliations

Yi Wang: State Key Laboratory of High Performance Computing, College of Computer, National University of Defense Technology, Changsha 410073, China
Xiao-Wei Guo: State Key Laboratory of High Performance Computing, College of Computer, National University of Defense Technology, Changsha 410073, China
Dong Liu: Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu 610000, China
Ge Wu: Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu 610000, China
Chao Li: State Key Laboratory of High Performance Computing, College of Computer, National University of Defense Technology, Changsha 410073, China
Lijuan Chen: State Key Laboratory of High Performance Computing, College of Computer, National University of Defense Technology, Changsha 410073, China
Ran Zhao: State Key Laboratory of High Performance Computing, College of Computer, National University of Defense Technology, Changsha 410073, China
Canqun Yang: State Key Laboratory of High Performance Computing, College of Computer, National University of Defense Technology, Changsha 410073, China

DOI: https://doi.org/10.3390/en12122276
Journal volume & issue: Vol. 12, no. 12
p. 2276

Abstract

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Simulating the steam dumping process of a pressurized relief tank is a challenging engineering problem, due to the massive computing resource requirements and its complex physical models. This study gave a comprehensive 3D numerical study for the transient dumping process from the PRT (Pressurizer Relief Tank) to the room containing the tank. The physical model, geometry design and meshing strategy, along with the numerical techniques, have been described in detail. Through parallel simulations based on the open source CFD toolbox OpenFOAM, numerical results for the temperature, pressure, and the velocity distribution are presented. The results show that the maximum velocity throughout the whole domain is 967 m/s over Mach 2 and the maximum pressure on the roof of the room is 2.8 atm. It could provide the guidance information for the safety design of the reactor coolant system. Additionally, comparison cases between OpenFOAM and CFX are tested, and it turns out that OpenFOAM could produce comparable accuracy with commercial CFD software and scale to much more computing cores in parallel simulations.

Published in Energies

ISSN: 1996-1073 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology
Website: http://www.mdpi.com/journal/energies

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