ACTA AERONAUTICAET ASTRONAUTICA SINICA >
Experiment on Startup Performance of Sublimator with Constant Heat Flux Boundary
Received date: 2013-09-06
Revised date: 2014-01-15
Online published: 2014-02-21
Supported by
National Science and Technology Major Project
The sublimator is an ideal heat rejection device for the spacecraft which works with peak heat loads or in warm thermal environments. However, few research efforts have focused on the startup performance of a sublimator. In this paper the startup work mechanism and the performance related factors of the sublimator are analyzed, and experiments are carried out about the influence of initial temperature, feed water pressure and heat load on the transient performance of sublimator startup. The experiment results indicate that a sublimator with constant heat flux boundary can establish a steady phase change work mode in a short period after water is fed to it. The initial temperature and the feed water pressure have little influence on the steady state temperature of the sublimator, while the heat load has a greater impact on the steady state temperature. The startup response time shows a linear relationship with the initial temperature, feed water pressure and heat load respectively. Increase of the initial temperature leads to a longer response time, while increase of feed water pressure and heat load results in a shorter response time. The coefficient 1/aq0 analyzed from the experiment results can reflect the heat transfer coefficient between the sublimator porous plate and the heat source.
WANG Yuying , ZHONG Qi , NING Xianwen , MIAO Jianyin , LI Jindong . Experiment on Startup Performance of Sublimator with Constant Heat Flux Boundary[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2014 , 35(6) : 1571 -1580 . DOI: 10.7527/S1000-6893.2013.0523
[1] Tongue S, Swartley V, Dingell C W. The porous plate sublimator as the X-38/CRV (Crew Return Vehicle) orbital heat sink//29th International Conference on Environmental Systems, 1997: 1-5.
[2] Wilson J, Lawson B. Investigation into venting and non-venting technologies for the space station freedom extravehicular activity life support system, SAE Technical Paper 901319. 1990.
[3] Bouchelle W T, Goodwin F H. Phase 1 engineering and technical data report for the thermal control extravehicular life support system, N75-24360. Washington, D.C.: NASA, 1975.
[4] Skoog A I, Abramov I P, Stoklitsky A Y, et al. The Soviet-Russian space suits, a historical overview of the 1960's[J]. Acta Astronautica, 2002, 51(1-9): 113-131.
[5] Kuznetz L H. Control of thermal balance by a liquid circulating garment based on a mathematical representation of the human thermoregulatory system. Berkeley: University of California, 1975.
[6] Pisacane V L, Kuznetz L H, Logan J S, et al. Thermoregulatory models of safety-for-flight issues for space operations[J]. Acta Astronautica, 2006, 59(7): 531-546.
[7] Leimkuehler T O, Stephan R A. Development status of the contaminant insensitive sublimator//38th International Conference on Environmental Systems, 2008.
[8] Turner M A. Use of thermal analyses of systems to evolve development projects in spacecraft thermal control concepts, AIAA-1971-0456. Reston: AIAA, 1971.
[9] Metts J G, Klaus D M. Equivalent system mass analysis for space suit thermal control, AIAA-2011-5180. Reston: AIAA, 2011.
[10] Wu Z Q, Yuan X G, Shen L P. Analysis of water sublimator heat rejection systems[J]. Acta Aeronautica et Astronautica Sinica, 1999, 20(Sup): 16-18. (in Chinese) 吴志强, 袁修干, 沈力平. 水升华器散热系统分析[J]. 航空学报, 1999, 20(增刊): 16-18.
[11] Wu Z Q, Yuan X G. Experimental investigation on porous plate water sublimator under constant heat flux[J]. Journal of Beijing University of Aeronautics and Astronautics, 2000, 26(5): 552-555. (in Chinese) 吴志强, 袁修干. 多孔板水升华器在恒热流条件下的试验研究[J]. 北京航空航天大学学报, 2000, 26(5): 552-555.
[12] Wu Z Q, Shen L P. Experimental research on the effects of hydrophobic coating porous plates on heat dissipation of water sublimator[J]. Space Medicine & Medical Engineering, 2003, 16(4): 287-291. (in Chinese) 吴志强, 沈力平. 憎水涂层多孔板对水升华器散热性能影响的实验研究[J]. 航天医学与医学工程, 2003, 16(4): 287-291.
[13] Li S, Ren J X. Numerical simulation and analysis on the working progress of water sublimator[J]. Journal of Engineering Thermophysics, 2011, 32(2): 291-294. (in Chinese) 李森, 任建勋. 水升华器工作过程的数值模拟与分析[J]. 工程热物理学报, 2011, 32(2): 291-294.
[14] Wang Y Y, Zhong Q, Ning X W, et al. Overview of space application and development of water sublimator[J]. Spacecraft Engineering, 2013, 22(3): 105-112. (in Chinese) 王玉莹, 钟奇, 宁献文, 等. 水升华器空间应用研究[J]. 航天器工程, 2013, 22(3): 105-112.
[15] Wang Y Y, Zhong Q, Ning X W, et al. Transient study about the heat transfer of sublimator combined with fluid loop//64th International Astronautical Congress, 2013: 23-27.
/
| 〈 |
|
〉 |
CJA