On the Space Thermal Destratification in a Partially Filled Hydrogen Propellant Tank by Jet Injection

doi:10.1007/s12217-021-09923-2

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	On the Space Thermal Destratification in a Partially Filled Hydrogen Propellant Tank by Jet Injection
	Li, Ji-Cheng 1,2; Guo, Bin 1,3; Zhao, Jian-Fu 1,3; Li, Kai 1,3; Hu, Wen-Rui 1,3
刊名	MICROGRAVITY SCIENCE AND TECHNOLOGY
	2022-02-01
卷号	34 期号:1
关键词	Microgravity Thermal destratification Cryogenic jet mixing Two-phase flow
ISSN号	0938-0108
DOI	10.1007/s12217-021-09923-2
英文摘要	Hydrogen, as a space propellant, plays an important role in future space energy systems. However, it is sensitive to heat leakage from the environment because of its low boiling point and small density. Besides, the buoyancy convection is weakened and even completely suppressed in space microgravity environment. When there is heat leakage on the wall of the propellant tank, temperature stratification will be produced around the heat leakage source, resulting in propellant overheating. This will affect the interfacial heat and mass transfer, leading to pressure rise in the tank, and even endanger the structural safety of the system. To prevent tank pressure from rising above its design limits, venting or active pressure control techniques must be implemented. The cryogenic jet mixing is an effective method to suppress temperature stratification. The cryogenic fluid is mixed with the fluid inside the tank through a jet nozzle to reduce the thermal stratification and achieve uniform temperature distribution. In the present study, the temperature stratification phenomenon caused by heat leakage and its destratification via a cryogenic jet under microgravity condition were numerically investigated in the context of a partially liquid-filled large scale model tank. The effects of cryogenic jet mixing on the elimination of temperature stratification were analyzed for different initial filling ratios and mass flow rates. The results show that a higher incident mass flow rate can effectively destroy the temperature stratification inside the tank and promote an inside fluid flow for a given liquid filling ratio. A smaller filling ratio results in a faster growth in both average temperature and average pressure, and a larger amount of mass transfer inside the tank. It is more efficient to implement the cryogenic jet injection in the early stage when the remained propellant is still abundant, or adopt a higher incident mass flow rate to suppress the thermal stratification in the tank.
WOS研究方向	Engineering ; Thermodynamics ; Mechanics
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000736778700001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/154814]
专题	兰州理工大学
作者单位	1.Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Beijing 100190, Peoples R China; 2.Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou 730050, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Ji-Cheng,Guo, Bin,Zhao, Jian-Fu,et al. On the Space Thermal Destratification in a Partially Filled Hydrogen Propellant Tank by Jet Injection[J]. MICROGRAVITY SCIENCE AND TECHNOLOGY,2022,34(1).
APA	Li, Ji-Cheng,Guo, Bin,Zhao, Jian-Fu,Li, Kai,&Hu, Wen-Rui.(2022).On the Space Thermal Destratification in a Partially Filled Hydrogen Propellant Tank by Jet Injection.MICROGRAVITY SCIENCE AND TECHNOLOGY,34(1).
MLA	Li, Ji-Cheng,et al."On the Space Thermal Destratification in a Partially Filled Hydrogen Propellant Tank by Jet Injection".MICROGRAVITY SCIENCE AND TECHNOLOGY 34.1(2022).