Progress on the Organic and Inorganic Modules of the Spacecraft Water Impurity Monitor, a Next Generation Complete Water Analysis System for Crewed Vehicles

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dc.creatorPensinger, Stuart
dc.creatorCallahan, Michael
dc.creatorNeidholdt, Evan
dc.creatorNoell, Aaron
dc.creatorOborny, Nathan
dc.creatorBae, Byunghoon
dc.creatorLopez, Valeria
dc.creatorHancock, Bruce
dc.creatorGonzalez, Marianne
dc.creatorHomer, Margie
dc.creatorMadzunkov, Stojan
dc.creatorDarrach, Murray
dc.creatorKidd, Richard
dc.date.accessioned2023-06-15T16:30:27Z
dc.date.available2023-06-15T16:30:27Z
dc.date.issued2023-07-16
dc.descriptionStuart Pensinger, NASA Johnson Space Center(JSC), USA
dc.descriptionMichael Callahan, NASA Johnson Space Center(JSC), USA
dc.descriptionEvan Neidholdt, KBR, USA
dc.descriptionAaron Noell, Jet Propulsion Laboratory, USA
dc.descriptionNathan Oborny, Jet Propulsion Laboratory, USA
dc.descriptionByunghoon Bae, Jet Propulsion Laboratory, USA
dc.descriptionValeria Lopez, Jet Propulsion Laboratory, USA
dc.descriptionBruce Hancock, Jet Propulsion Laboratory, USA
dc.descriptionMarianne Gonzalez, Jet Propulsion Laboratory, USA
dc.descriptionMargie Homer, Jet Propulsion Laboratory, USA
dc.descriptionStojan Madzunkov, Jet Propulsion Laboratory, USA
dc.descriptionMurray Darrach, Jet Propulsion Laboratory, USA
dc.descriptionRichard Kidd, Jet Propulsion Laboratory, USA
dc.descriptionICES402: Extravehicular Activity: PLSS Systems
dc.descriptionThe 52nd International Conference on Environmental Systems was held in Calgary, Canada, on 16 July 2023 through 20 July 2023.
dc.description.abstractThe Dragonfly Mass Spectrometer (DraMS) is an instrument on the Dragonfly mission operating on the surface of the Titan, the Saturn’s largest moon. Titan's atmosphere is nitrogen rich and has surface atmospheric pressure of 147 kPa and temperature of 94 K. Since electronics cannot survive at these extreme temperatures, significant thermal isolation is needed between the electronics and the Titan atmosphere to maintain the components above their survival temperatures. However, the main electronic box (MEB) for the DraMS instrument dissipates significant amount of heat over small volume and a conventional conductive cooling approach cannot be used without significant mass additions. Instead, a fan cooled approach was chosen. Conditioned room-temperature air, supplied by the Dragonfly lander, will flow directly over the MEB’s boards during DraMS operational scenarios. A cooling air manifold is designed with the help of computational fluid dynamics (CFD) simulations to effectively distribute the flow over the actively cooled boards. Since the fan will operate at denser-than-Earth pressures on Titan but Earth-like pressures during ground testing, a thermal test was performed to verify the fan’s thermal performance (at varying levels of pressure) and compared against CFD predictions. This test was performed with a 3-D printed mockup of the MEB with heated metallic plates to simulate the circuit boards. This paper will discuss the analytical CFD work and the thermal tests performed to aid the development of the DraMS thermal/mechanical MEB design.
dc.format.mimetypeapplication/pdf
dc.identifier.otherICES-2023-110
dc.identifier.urihttps://hdl.handle.net/2346/94571
dc.language.isoeng
dc.publisher2023 International Conference on Environmental Systems
dc.subjectElectronics
dc.subjectforced cooling
dc.subjectfan
dc.subjectair cooling
dc.subjectmanifold
dc.subjectfin
dc.subjectheat transfer
dc.subjectconvection
dc.subjectconduction
dc.subjectTitan
dc.titleProgress on the Organic and Inorganic Modules of the Spacecraft Water Impurity Monitor, a Next Generation Complete Water Analysis System for Crewed Vehiclesen_US
dc.typePresentations

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