| Numerical Simulation on the Effects of Component Layout Orientation on the Performance of a Neon-Charged Cryogenic Loop Heat Pipe | |
He FL(何发龙)1,2; Du WF(杜王芳)1,3 ; Zhao JF(赵建福)1,3; Li JD4; Miao JY4; He J4
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| Source Publication | MICROGRAVITY SCIENCE AND TECHNOLOGY
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| 2020-04-01 | |
| Volume | 32Issue:2Pages:179-188 |
| ISSN | 0938-0108 |
| Abstract | As a typically highly efficient two-phase heat transfer under cryogenic temperature range, the operation performances of cryogenic loop heat pipes (CLHPs) might be affected by the relative location of different components. A transient mathematical model is established in present work. The model validation is demonstrated by comparing the simulation results with an auxiliary loop type neon-charged CLHP (Ne-CLHP) experiment data, and a good agreement is achieved. The effect of gravity caused by different layout orientations on the Ne-CLHP operation performances are then investigated numerically. There are three operation modes, namely normal LHP mode (n-LHP), gravity-assisted LHP mode (g-LHP), and gravity thermosyphon mode (GTP), according to different layout orientations and heat loads. Under the gravity resistance condition with a positive layout inclination angle, the Ne-CLHP is operated in n-LHP. The operating temperature increases with the positive layout inclination angle, and the heat transport capacity decreases. Under the gravity assistance condition with a negative layout inclination angle, all three operation modes may occur according mainly to the primary heat load. Only the two LHP modes are simulated in the present study, which located in the range between the transition heat load from GTP to g-LHP and the heat transport capacity. The lager negative layout incline angle, the higher transition heat load and the heat transport capacity, while lower operating temperature. In addition, the gravity-independence of cross-sectional two-phase distribution in the transport lines is discussed in the frame of dominant force analysis. The modeling effort will contribute to the technology research and development, as well as the operation control of CLHPs for space and ground applications. |
| Keyword | Cryogenic loop heat pipe Transient model Layout orientation Operation performance Gravity effect |
| DOI | 10.1007/s12217-019-09761-3 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000527687600007 |
| WOS Keyword | ACROSS-GIMBAL ; OPERATION |
| WOS Research Area | Engineering ; Thermodynamics ; Mechanics |
| WOS Subject | Engineering, Aerospace ; Thermodynamics ; Mechanics |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | Zhao, Jian-Fu ; Li, Jin-Dong |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/84793 |
| Collection | 微重力重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, CAS Key Lab Micrograv, Beijing 100190, Peoples R China; 2.China Acad Space Technol, Beijing Key Lab Space Thermal Control Technol, Inst Spacecraft Syst Engn, Beijing 100094, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 4.Tianjin Chengjian Univ, Sch Energy & Safety Engn, Tianjin 300384, Peoples R China |
| Recommended Citation GB/T 7714 | He FL,Du WF,Zhao JF,et al. Numerical Simulation on the Effects of Component Layout Orientation on the Performance of a Neon-Charged Cryogenic Loop Heat Pipe[J]. MICROGRAVITY SCIENCE AND TECHNOLOGY,2020,32,2,:179-188.Rp_Au:Zhao, Jian-Fu, Li, Jin-Dong |
| APA | 何发龙,杜王芳,赵建福,Li JD,Miao JY,&He J.(2020).Numerical Simulation on the Effects of Component Layout Orientation on the Performance of a Neon-Charged Cryogenic Loop Heat Pipe.MICROGRAVITY SCIENCE AND TECHNOLOGY,32(2),179-188. |
| MLA | 何发龙,et al."Numerical Simulation on the Effects of Component Layout Orientation on the Performance of a Neon-Charged Cryogenic Loop Heat Pipe".MICROGRAVITY SCIENCE AND TECHNOLOGY 32.2(2020):179-188. |
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| Jp2020237.pdf（1604KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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