Equivalent Mass Benefits from Employing Vapor Compression Refrigeration on Spacecraft

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dc.creatorBrendel, Leon P. M.
dc.creatorCaskey, Stephen L.
dc.creatorEwert, Michael K.
dc.creatorGomes, Alberto R.
dc.creatorBraun, James E.
dc.creatorGroll, Eckhard A.
dc.date.accessioned2021-06-24T14:40:24Z
dc.date.available2021-06-24T14:40:24Z
dc.date.issued7/12/2021
dc.descriptionLeon P. M. Brendel, Purdue University
dc.descriptionStephen L. Caskey, Air Squared, Inc
dc.descriptionMichael K. Ewert, NASA Johnson Space Center
dc.descriptionAlberto R. Gomes, Whirlpool Corporation
dc.descriptionJames E. Braun, Purdue University
dc.descriptionEckhard A. Groll, Purdue University
dc.descriptionICES201: Two-Phase Thermal Control Technologyen
dc.descriptionThe 50th International Conference on Environmental Systems was held virtually on 12 July 2021 through 14 July 2021.en_US
dc.description.abstractThermoelectric cooling, reversed Brayton cycles and Stirling cycle devices are common cooling technologies employed on spacecraft where temperatures below the radiator temperature are needed. Although used less often in microgravity, vapor compression refrigeration was proposed for microgravity applications as early as the 1970s. Researchers proposed the vapor compression cycle over other cooling technologies for its superior energy efficiency in the typical refrigerator/freezer and air-conditioning temperature range. The higher energy efficiency should alleviate the mass penalty of the thermal system, conceivably both for satellites and manned spacecraft. Despite numerous propositions, the literature lacks a discussion of the absolute equivalent mass benefit achievable and the value of it relative to the total mass of the thermal system of the spacecraft or the spacecraft itself. This paper presents the equivalent mass benefits of employing a vapor compression system over other cooling technologies using a mass penalty factor for power consumption. Additionally, a prototype vapor compression cooler sized to fit into an ISS locker is presented.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.otherICES-2021-159
dc.identifier.urihttps://hdl.handle.net/2346/87131
dc.language.isoengen_US
dc.publisher50th International Conference on Environmental Systemsen_US
dc.subjectVapor compression cycle
dc.subjectmicrogravity
dc.subjectmass penalty
dc.subjectequivalent mass
dc.subjectcooling technologies
dc.titleEquivalent Mass Benefits from Employing Vapor Compression Refrigeration on Spacecraften_US
dc.typePresentationen_US

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