DESIGN AND VERIFICATION OF ULTRA-HIGH TEMPERATURE LITHIUM HEAT PIPE BASED EXPERIMENTAL FACILITY

doi:10.2298/TSCI210528263H

	DESIGN AND VERIFICATION OF ULTRA-HIGH TEMPERATURE LITHIUM HEAT PIPE BASED EXPERIMENTAL FACILITY
	Hu, Chongju 1,2,3; Yu, Dali 2; He, Meisheng 2; Li, Taosheng 2; Yu, Jie 2
刊名	THERMAL SCIENCE
	2022
卷号	26
关键词	lithium heat pipe CFD heat transfer limit heat transfer performance
ISSN号	0354-9836
DOI	10.2298/TSCI210528263H
通讯作者	Yu, Dali(dlyu@inest.cas.cn)
英文摘要	Lithium heat pipe has broad applications in heat pipe cooled reactors and hypersonic vehicles due to its ultra-high working temperature which is around 1700 K. In this paper, a lithium heat pipe based experimental facility has been designed to test the heat transfer performance of the lithium heat pipe. A simplified mathematical model of heat pipe has been implemented into a CFD approach, which is used to verify the design of lithium heat pipe and its experimental facility. Results showed that the CFD approach is in good agreements with some well-known existing models and experimental data, and deviation between the results is within 5% range. The adjustment range of mixed gas thermal resistance and cooling water flow rate was obtained by analyzing the effects of different cooling conditions on the performance of the experimental facility. It is necessary to ensure the cooling water flow rate is above 0.11 Lph to prevent water boiling when the heating power is 10 kW around, and the optimal proportion of helium is 70-90%. The operation characteristics of the lithium heat pipe under unsteady-state with varying heating power were simulated numerically. The results show that the proportion of helium must be less than 60% for normal operation of the lithium heat pipe. This work provides a reference and numerical verification for the design of lithium heat pipe based experimental facility, which can be used to reveal the heat transfer mechanisms of the lithium heat pipe during the experiment.
资助项目	CASHIPS Director's Fund[YZJJ2021QN36]
WOS关键词	THERMAL PERFORMANCE ; STARTUP ; LENGTH
WOS研究方向	Thermodynamics
语种	英语
出版者	VINCA INST NUCLEAR SCI
WOS记录号	WOS:000881233100013
资助机构	CASHIPS Director's Fund
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/130136]
专题	中国科学院合肥物质科学研究院
通讯作者	Yu, Dali
作者单位	1.Univ Sci & Technol China, Hefei, Anhui, Peoples R China 2.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Nucl Energy Safety Technol, Hefei, Anhui, Peoples R China 3.Suzhou Univ, Suzhou, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Hu, Chongju,Yu, Dali,He, Meisheng,et al. DESIGN AND VERIFICATION OF ULTRA-HIGH TEMPERATURE LITHIUM HEAT PIPE BASED EXPERIMENTAL FACILITY[J]. THERMAL SCIENCE,2022,26.
APA	Hu, Chongju,Yu, Dali,He, Meisheng,Li, Taosheng,&Yu, Jie.(2022).DESIGN AND VERIFICATION OF ULTRA-HIGH TEMPERATURE LITHIUM HEAT PIPE BASED EXPERIMENTAL FACILITY.THERMAL SCIENCE,26.
MLA	Hu, Chongju,et al."DESIGN AND VERIFICATION OF ULTRA-HIGH TEMPERATURE LITHIUM HEAT PIPE BASED EXPERIMENTAL FACILITY".THERMAL SCIENCE 26(2022).