Pulse-Modulated Oxygen Pressure Control for Extravehicular Activity Space Suits

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dc.creatorBarker, John
dc.creatorBaker, Bryce
dc.creatorAnderson, Samuel
dc.date.accessioned2021-06-23T22:38:43Z
dc.date.available2021-06-23T22:38:43Z
dc.date.issued7/12/2021
dc.descriptionJohn Barker, Collins Aerospace
dc.descriptionBryce Baker, Collins Aerospace
dc.descriptionSamuel Anderson, Collins Aerospace
dc.descriptionICES402: Extravehicular Activity: PLSS Systemsen
dc.descriptionThe 50th International Conference on Environmental Systems was held virtually on 12 July 2021 through 14 July 2021.en_US
dc.description.abstractThis paper presents an adaptation of a pulse-modulated oxygen system for space suit pressure control. Pressure regulation and control for EVA spacesuits has been previously limited to 2-stage mechanical regulators. Mechanical regulators add significant weight to the Portable Life Support System that the astronaut must carry. To enable better mobility during surface operations, a more compact, lighter weight, adaptable solution is proposed. Taking from an emergency oxygen delivery system qualified on a commercial transport aircraft, the Oxygen and PSU Systems division of Collins Aerospace has developed and tested a new compact and lightweight EVA space suit pressure control system. The pressure regulation system utilizes timed pulses of pressurized oxygen to safely regulate the pressure within a space suit free volume under typical leakage and purge flow rates at space suit operational pressures. This paper covers the basic operation of the pressure regulation system as well as initial development test results and next steps.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.otherICES-2021-84
dc.identifier.urihttps://hdl.handle.net/2346/87088
dc.language.isoengen_US
dc.publisher50th International Conference on Environmental Systemsen_US
dc.subjectoxygen
dc.subjectpulse
dc.subjectmodulated
dc.subjectpressure
dc.subjectregulator
dc.subjectmodel based design
dc.subjectflow rate
dc.subjectsupply
dc.subjectstorage
dc.subjecttank
dc.subjectspace suit
dc.subjectPLSS
dc.subjectlightweight
dc.subjectcompact
dc.subjectcommercial
dc.subjectaircraft
dc.titlePulse-Modulated Oxygen Pressure Control for Extravehicular Activity Space Suitsen_US
dc.typePresentationen_US

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