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dc.creatorWang, Yuying
dc.creatorLi, Jindong
dc.creatorNing, Xianwen
dc.creatorMiao, Jianyin
dc.creatorQi, Zhong
dc.date.accessioned2016-07-28T19:41:26Z
dc.date.available2016-07-28T19:41:26Z
dc.date.issued2016-07-10
dc.identifier.otherICES_2016_441
dc.identifier.urihttp://hdl.handle.net/2346/67734
dc.descriptionChina
dc.descriptionBeijing Institute of Spacecraft System Engineering, Beijing key laboratory of space thermal control technology.
dc.description201
dc.descriptionICES201: Two-Phase Thermal Control Technology
dc.descriptionVienna, Austria
dc.descriptionWANG Yuying, Beijing Institute of Spacecraft System Engineering, China
dc.descriptionMIAO Jianyin, Beijing Institute of Spacecraft System Engineering, China
dc.descriptionLV Wei, Beijing Institute of Spacecraft System Engineering, China
dc.descriptionLIU Chang, Beijing Institute of Spacecraft System Engineering, China
dc.descriptionXUE Shuyan, Beijing Institute of Spacecraft System Engineering, China
dc.descriptionWANG Lu, Beijing Institute of Spacecraft System Engineering, China
dc.descriptionNING Xianwen, Beijing Institute of Spacecraft System Engineering, China
dc.descriptionLI Jindong, Beijing Institute of Spacecraft System Engineering, China
dc.descriptionZHONG Qi, Beijing Institute of Spacecraft System Engineering, China
dc.descriptionThe 46th International Conference on Environmental Systems was held in Vienna, Austria, USA on 10 July 2016 through 14 July 2016.
dc.description.abstractWater sublimator is a kind of thermal control device, which takes advantage of the high latent heat of water and can reject spacecraft waste heat by evaporating/sublimating water to vacuum environment. Thus, sublimator could be exclusively be used for spacecraft which couldn't reject heat effectively through radiation. Sublimators has been successfully used in the spacecraft thermal management systems and the portable life support system (PLSS) of space suit. For the sublimator which will be used in micro-gravity or 1/6g environments, it's very important to evaluating their work performance's measurability and ground test results' creditability, through analysis of the gravity effect on their work performance. Detailed work mechanisms of liquid-gas/liquid-solid-gas phase change processes in sublimator porous structures were depicted, gravity effects on the fluidic flow in the work process of sublimator were analyzed, and restrain conditions for sublimator gravity-invariant characteristic parameter design were obtained. Analysis results indicate that the sublimator characteristic parameter which agrees with (Gr/Re^2)<0.1 has a very large value space. While Bond number and Rayleigh number provides more strict restriction of the gravity-invariant characteristic parameter. The gravity-invariant characteristic parameter of 1g environment meets the 1/6g gravity-invariant condition of lunar. For a sublimator with gravity-invariant parameter, its work performance in 1/6g or micro-gravity environment can be evaluated in earth's 1g environment. The reasonability of sublimator gravity-invariant parameter presented in this context is validated by the ground experimental results.
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisher46th International Conference on Environmental Systems
dc.subjectporous plate water sublimator
dc.subjectgravity-invariant
dc.subjectcharacteristic parameter
dc.subjectlunar environment
dc.subjectmicrogravity
dc.titleGravity-Invariant Condition of Water Sublimator Characteristic Parameter Design: Analysis and Experiment
dc.typePresentation


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