Thermal Vaccuum Testing of a Miniature Propylene Loop Heat Pipe

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dc.creatorThayer, John
dc.creatorJiang, Jianbo
dc.creatorGernert, Nelson
dc.creatorBugby, David
dc.creatorRodriguez, Jose
dc.creatorOusley, Wes
dc.date.accessioned2022-06-21T14:25:31Z
dc.date.available2022-06-21T14:25:31Z
dc.date.issued7/10/2022
dc.descriptionJohn Thayer, AAVID Thermal Division of Boyd Corp., US
dc.descriptionJianbo Jiang, AAVID Thermal Division of Boyd Corp., US
dc.descriptionNelson Gernert, AAVID Thermal Division of Boyd Corp., US
dc.descriptionDavid Bugby, NASA/JPL, US
dc.descriptionJose Rodriguez, NASA/JPL, US
dc.descriptionWes Ousley, Lentech, Inc, US
dc.descriptionICES201: Two-Phase Thermal Control Technologyen
dc.descriptionThe 51st International Conference on Environmental Systems was held in Saint Paul, Minnesota, US, on 10 July 2022 through 14 July 2022.en_US
dc.description.abstractThis paper presents the design and thermal vacuum testing of a Miniature Loop Heat Pipe (MLHP) with propylene as working fluid. It is for cooling a prototype lunar power device and so needs to work against lunar gravity. The target operating condition was to convey 20W in the +20C to -30C temperature range. All wetted materials were stainless steel, while an aluminum saddle and radiator panel were used to enhance heat spreading. The outer diameter of the LHP primary wick is 5mm and the length is 55mm. The Bubble test showed a pore radius of 1.2 micrometer. The radiator is 265mm x 270mm. The MLHP was tested at different heat loads, different orientations in the gravity field and two sink temperatures of +20C and -30C. The MLHP thermal performance test included startup and steady state operation. Maximum heat transport limit was found to be 25W and peak conductance 6.6 W/C.
dc.format.mimetypeapplication/pdf
dc.identifier.otherICES-2022-411
dc.identifier.urihttps://hdl.handle.net/2346/89862
dc.language.isoengen_US
dc.publisher51st International Conference on Environmental Systems
dc.subjectLoop Heat Pipe
dc.subjectLunar Power Device
dc.subjectMiniature LHP
dc.subjectPropylene LHP
dc.titleThermal Vaccuum Testing of a Miniature Propylene Loop Heat Pipe
dc.typePresentationen_US

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