Numerical investigation of the gravity effect on two-phase flow and heat transfer of neon condensation inside horizontal tubes

doi:10.1016/j.applthermaleng.2023.121162

	Numerical investigation of the gravity effect on two-phase flow and heat transfer of neon condensation inside horizontal tubes
	He FL(何发龙); Du WF(杜王芳); Miao, JianYin ; Zhang, HongXing ; Liu, SiXue ; Liu, Chang ; Zhao JF(赵建福)
刊名	APPLIED THERMAL ENGINEERING
	2023-10-01
卷号	233 页码:121162
关键词	Condensation flow Cryogenic working fluid Gravity effect Two phase flow pattern
ISSN号	1359-4311
DOI	10.1016/j.applthermaleng.2023.121162
英文摘要	The condensation flow and heat transfer characteristics of cryogenic neon inside horizontal tubes with diameters of 1 mm and 2 mm were numerically investigated. The mass flux ranged from 20 to 187 kg/(m(2)center dot s) for gravity levels includes zero gravity, Lunar gravity, Martian gravity, and Earth gravity. The effects of gravity on the condensation flow pattern, local condensate film distribution, and local and global heat transfer were analyzed in detail. The gravity effect on the condensation heat transfer showed three states, including enhancement, deterioration and gravity-independence, which were mainly determined by the mass flux and vapor quality. Under normal gravity, the condensation heat transfer coefficients increased with increasing mass flux and decreasing tube diameter. Under low mass flux, the cryogenic neon underwent enhanced condensation heat transfer under zero gravity and reduced gravity in the high vapor quality region but deteriorated condensation heat transfer in the low vapor quality region. By increasing the mass flux, the gravity effect was effectively suppressed, which resulted in gravity-independent behavior of condensation heat transfer in the high vapor quality region. The gravity effect significantly affected the liquid film distribution in the condensation process, with a more uniform distribution of the liquid film appearing along the circumferential direction as the gravity level decreased. However, due to the low surface tension of the deep cryogenic fluid, the condensation interface was more prone to flow instability under reduced gravity levels.
分类号	一类
WOS研究方向	Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics
语种	英语
WOS记录号	WOS:001046821400001
资助机构	National Natural Science Foundation of China [11972040] ; National Key Research and Development Program of China [2022YFF0503502]
其他责任者	Du, WF ; Zhao, JF (corresponding author), Chinese Acad Sci, Inst Mech, CAS Key Lab Micrograv, Beijing 100190, Peoples R China. ; Miao, JY (corresponding author), China Acad Space Technol, Inst Spacecraft Syst Engn, Beijing Key Lab Space Thermal Control Technol, Beijing 100094, Peoples R China.
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/92597]
专题	力学研究所_国家微重力实验室
作者单位	1.{He, Fa-Long, Du, Wang-Fang, Zhao, Jian-Fu} Chinese Acad Sci, Inst Mech, CAS Key Lab Micrograv, Beijing 100190, Peoples R China 2.{Miao, Jian-Yin, Zhang, Hong-Xing, Liu, Si-Xue, Liu, Chang} China Acad Space Technol, Inst Spacecraft Syst Engn, Beijing Key Lab Space Thermal Control Technol, Beijing 100094, Peoples R China 3.{He, Fa-Long, Du, Wang-Fang, Zhao, Jian-Fu} Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	He FL,Du WF,Miao, JianYin,et al. Numerical investigation of the gravity effect on two-phase flow and heat transfer of neon condensation inside horizontal tubes[J]. APPLIED THERMAL ENGINEERING,2023,233:121162.
APA	何发龙.,杜王芳.,Miao, JianYin.,Zhang, HongXing.,Liu, SiXue.,...&赵建福.(2023).Numerical investigation of the gravity effect on two-phase flow and heat transfer of neon condensation inside horizontal tubes.APPLIED THERMAL ENGINEERING,233,121162.
MLA	何发龙,et al."Numerical investigation of the gravity effect on two-phase flow and heat transfer of neon condensation inside horizontal tubes".APPLIED THERMAL ENGINEERING 233(2023):121162.