Simulation of a high-pressure tritium leakage accident and optimization method of emergency ventilation

被引：0
作者：
Cai X. [1 ]
Li C. [1 ,2 ]
Xue D. [3 ]
Huo Y. [1 ]
Wang H. [1 ]
机构：
[1] College of Nuclear Engineering, Rocket Force University of Engineering, Xi′an
[2] Graduate School, Air Force Engineering University, Xi′an
[3] Equipment Project Management Center, Rocket Force Equipment Department, Xi′an
来源：
Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2022年 / 43卷 / 12期
关键词：
emergency; high pressure; leakage; numerical simulation; optimization; tritium gas; vent position; ventilation rate;
D O I：
10.11990/jheu.202211058
中图分类号：
学科分类号：
摘要：
To solve the emergency disposal problem of tritium leakage accident in a high-pressure tritium storage container, based on the theory of fluid dynamics, we use the Fluent software to perform numerical simulations of a tritium leakage accident based on AN-EOS, deriving the best emergency ventilation position and minimum ventilation time. The results show that the high-pressure tritium leakage behavior is mainly concentrated in the initial 2 s, and emergency ventilation can play a good role in tritium removal. The best ventilation scheme of the cuboid space is double inlets and double outlets on the side wall. The efficiency of tritium removal increased by orders of magnitude with the increase of the ventilation rate, and the minimum time required for the tritium concentration to decrease to the background level in the space is 430 s at a ventilation rate of 8 m/s. The model and method in this paper can provide technical support for the emergency treatment of high-pressure tritium leakage accidents in real scenes and has important theoretical significance and practical value for nuclear safety management and emergency response to nuclear accidents. © 2022 Editorial Board of Journal of Harbin Engineering. All rights reserved.
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页码：1803 / 1810
页数：7
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