First Lunar Outpost Extravehicular Life Support System Evaluation

Paper #:
  • 932188

Published:
  • 1993-07-01
Citation:
Conger, B., Trevino, L., and Lawson, B., "First Lunar Outpost Extravehicular Life Support System Evaluation," SAE Technical Paper 932188, 1993, https://doi.org/10.4271/932188.
Pages:
13
Abstract:
A preliminary evaluation of several portable life support system (PLSS) concepts which could be used during the First Lunar Outpost (FLO) mission extravehicular activities (EVA's) has been performed. The weight, volume and consumables characteristics for the various PLSS concepts were estimated. Thermal effects of day and night EVA's on PLSS consumables usage and hardware requirements were evaluated. The benefit of adding a radiator and the total PLSS weight to be carried by the astronaut were also evaluated for each of the concepts.The results of the evaluation were used to provide baseline weight, volume and consumables characteristics of the PLSS to be used on the 45 day FLO mission. The benefit of radiators was shown to be substantial. Considerable consumables savings were predicted for EVA schedules with a high concentration of nighttime EVA's versus daytime EVA's. Results from the evaluation are valid for the 45 day FLO mission but would need to be adjusted for shorter or longer missions. Also, as new technologies are developed, their relative value compared to the baseline PLSS concept would deserve evaluation.
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