| Investigation on Operational Unsteady Characteristics of CPL：The Effects of Evaporator and Reservoir |
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| 引用本文： | QuWei HouZengqi 等. Investigation on Operational Unsteady Characteristics of CPL：The Effects of Evaporator and Reservoir[J]. 热科学学报(英文版), 1999, 8(2): 114-119. DOI: 10.1007/s11630-999-0033-5 |
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| 作者姓名： | QuWei HouZengqi 等 |
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| 作者单位： | Qu Wei; Ma Tongze(Institute of Engineering Thermophysics,Chinese Academy of Sciences,P.O. Box 2706,Beijing,10008China)Hou Zengqi(Chinese Academy of Space Technology,P.O.Box 9628,Beijing,100086,China) |
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| 摘 要： | INTRODUCTIONTwo-phaseCapillaryPUmpedLoopasanewthermalcontrolsysteminspacetechniqueshasmanyadVantages.Ittransportsrelativelylargeamountofheatforalongdistance.TheevaporatorandreservoirofCPLactasimportantpartsinthedevice,thesteadyandunsteadyoperationalperformancesofCPLstronglydependonbothofthemli'2].T'heCPLunsteadycharacteristicsconsistofsac-upandoperationalunsteadycharacteristics.WhenthemeasuredtemperatureoftypicalCPLpointdeviatesfromitsnormalvalueanddisplayscontinualoscillationchara…
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| 关 键 词： | CPL 蒸发器 不稳定操作 |
Investigation on operational unsteady characteristics of CPL: The effects of evaporator and reservoir |
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| Wei Qu,Tongze Ma,Zengqi Hou. Investigation on operational unsteady characteristics of CPL: The effects of evaporator and reservoir[J]. Journal of Thermal Science, 1999, 8(2): 114-119. DOI: 10.1007/s11630-999-0033-5 |
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| Authors: | Wei Qu Tongze Ma Zengqi Hou |
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| Affiliation: | (1) Institute of Engineering Thermophysics, Chinese Academy of Sciences, P.O. Box 2706, 100080 Beijing, China;(2) Chinese Academy of Space Technology, P.O.Box 9628, 100086 Beijing, China |
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| Abstract: | Capillary Pumped Loop (CPL) is a tWo Phase closed system. The tWo main components of CPL, both evaporatorand reservoir are generally believed to play significant roles in its unsteady operation. In thes paper, experimentaland theoretical investigations are carried out on the influences of unsteady chararterishcs of both of them. Theprevious analyhcal results show that there is a pressure oscillation source in the evaporator and the internaloscillation frequency can be obtained. The reservoir also has an unsteady characterishcs, when the reservoir line hasa smaller damping value, there will be a self-oscillation of Pressure in the reservoir, and its analyhcal frequenciesare normally one or two quantihes bigger than the inherent frequencies of the evaporator. In order to keep CPLoperate steadily, on one hand, the structure of evaporator must be increased to make the conhnuous generated vaporflow out the wick easily, on the other hand, the return liquid ought to be subcooled enough to the reservoirtemperature set value. |
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| Keywords: | unsteady operation oscillation frequency subcooling. |
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