Control Strategy Optimization of Thermodynamic Venting System in Liquid Hydrogen Storage Tank Under Microgravity

被引：0

作者：

Hui Chen ^{[1
]}

Xiaolong Li ^{[1
]}

Haomai Zhang ^{[1
]}

Peng Yang ^{[1
]}

Yingwen Liu ^{[1
]}

Wenlian Ye ^{[2
]}

Chunjie Yan ^{[3
]}

Xiaojun Wang ^{[3
]}

机构：

[1] Key Laboratory of Thermo-Fluid Science and Engineering of MOE, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an

[2] College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou

[3] Science and Technology On Vacuum Technology and Physics Laboratory, Lanzhou Institute of Physics, Lanzhou

来源：

Yang, Peng (yp2019@mail.xjtu.edu.cn); Wang, Xiaojun (rainer163@163.com) | 2025年 / 37卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Control strategy; Cooling capacity utilization; Daily evaporation rate; Liquid hydrogen storage; Thermodynamic venting system (TVS);

D O I：

10.1007/s12217-024-10156-2

中图分类号：

学科分类号：

摘要：

This study employed a lumped vapor model to investigate the depressurization dynamics during the thermodynamic venting process in a cryogenic liquid hydrogen storage tank under microgravity conditions. The effects of different control strategies-such as flow distribution, circulation flow rate, spray angle, and throttle valve switching time-on the performance of the thermodynamic venting system (TVS) were studied. Building on this foundation, the control strategies are refined across various filling rates and heat loads. The findings indicate that directing the flow towards the upper nozzle proximate to the vapor enhances the depressurization rate and augments the utilization of cooling capacity. The optimal circulation flow rate matches the heat entering the air pillow, and increases with higher heat load and lower filling rate. When the injection angle is 60°, the TVS achieves optimal performance with the fastest depressurization rate and no thermal stratification. The throttle valve opens during the early depressurization stage and closes when the pressure drops to the critical pressure Pcr, resulting in better performance. A lower filling rate and higher heat load lead to an increase in Pcr. This study provides a solid foundation for optimizing TVS control under various conditions, ultimately extending the storage duration of propellants in orbit. © The Author(s), under exclusive licence to Springer Nature B.V. 2024.

引用

共 30 条

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