Effect of pressure control strategy on performance of thermodynamic vent system for storage tank

HUANG Yonghua; CHEN Zhongcan; WANG Bin; LI Peng; SUN Peijie

doi:10.11949/j.issn.0438-1157.20170679

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Effect of pressure control strategy on performance of thermodynamic vent system for storage tank

更新时间：2025-12-10

- Effect of pressure control strategy on performance of thermodynamic vent system for storage tank
- CIESC Journal Issue 12, Pages: 4702-4708(2017)
- 作者机构：
  
  1. 上海交通大学制冷与低温工程研究所,上海,200240
  2. 上海宇航系统工程研究所,上海,201108
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20170679
  CLC： 511.6
- Online First：05 December 2017，
  
  Published：05 December 2017
- 稿件说明：
移动端阅览
HUANG Yonghua, CHEN Zhongcan, WANG Bin, et al. Effect of pressure control strategy on performance of thermodynamic vent system for storage tank[J]. CIESC Journal, 2017, (12): 4702-4708.
DOI：

HUANG Yonghua, CHEN Zhongcan, WANG Bin, et al. Effect of pressure control strategy on performance of thermodynamic vent system for storage tank[J]. CIESC Journal, 2017, (12): 4702-4708. DOI： 10.11949/j.issn.0438-1157.20170679.

摘要

热力排气系统（TVS）是通过流体混合与节流换热排气双重作用实现低温推进剂在轨长期贮存的一种有效的压力控制技术。针对TVS的混合模式和排气模式提出了3种运行控制策略。在以R141b为气液相变贮存介质的室温温区TVS模拟装置上，研究了这3种控制策略对TVS作用下的贮箱内液体温度、热分层以及排气损失的影响。结果表明，当采用基于气枕压力运行混合模式，并且同时基于液体温度对应的饱和压力和气枕压力运行排气模式这一控制策略时，TVS不仅可以实现最小的排气损失，也可实现较低的液体贮存温度和较小的热分层。为今后低温TVS系统的控制设计和实际运行提供了指导。

Abstract

Thermodynamic vent system (TVS) is deemed as an efficient pressure control technique for long-term on-orbit storage of cryogenic propellants through fluid mixing and a combination of throttling and heat exchanging before venting. Three control strategies have been proposed to automate the mixing mode and venting mode of the TVS. The effects of these control strategies on liquid temperature

stratification and mass loss are investigated on a TVS simulator

which works at room temperature with R141b as the working fluid. The results show that the TVS can not only achieve a significant vent loss but also lower liquid temperatures and weaker stratification when one of the strategies is applied whose mixing mode operates based on ullage pressure and the vent mode is controlled based on both the ullage pressure and the bulk liquid temperature. This investigation provides guidance for the design and operation of cryogenic TVS.

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Related Author

LI Peng

SUN Peijie

WANG Tianxiang

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LIANG Ge

LI Peng

LI Ke

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Related Institution

Aerospace System Engineering Shanghai

State Key Laboratory of Technologies in Space Cryogenic Propellants

Department of Refrigeration and Cryogenic Engineering, Xi’an Jiaotong University

Shanghai Aerospace System Engineering

School of Energy and Power Engineering, University of Shanghai for Science and Technology

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