This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
An Assessment of Pressure/Oxygen Ratios for a Mars Base
Annotation ability available
Sector:
Language:
English
Abstract
It is well known that selection of the pressure/oxygen ratio for a human space habitat is a critical decision for the well-being and mission performance of astronauts. It has also been noted how this ratio affects the requirement for pre- and post-breathing and the type and flexibility of EVA/EHA astronaut suits. However, little attention has been paid to how these issues interact with various mission design strategies. Using the first manned mission to Mars as a baseline mission, we have separated the mission into its component parts as it relates to habitat type (i.e., the Earth-Mars interplanetary vehicle, the ascent/descent vehicle, the base, human rover vehicles, etc.) and have determined the oxygen resupply requirements for each part as they reflect a mission design strategy. These component parts form a matrix where duration of stay, loss of oxygen due to leakage and usage, and oxygen resupply needs are calculated. The matrix is then used as part of an evaluation model to compare several strategies which are aimed at reducing the oxygen resupply problem while maintaining astronaut safety and productivity.
Authors
Topic
Citation
Barrett, T., Morgenthaler, G., and Yoffe, S., "An Assessment of Pressure/Oxygen Ratios for a Mars Base," SAE Technical Paper 932147, 1993, https://doi.org/10.4271/932147.Also In
References
- Clarkson T. W. Utell M. J. Morgenthaler G. W. Eberhardt R. N. Rabin R. 1992 “NASA Specialized Center for Research and Training (NSCORT) in Space Environmental Health,” Proceedings of the 22nd International Conference on Environmental Systems Seatde, Washington July 13-16, 1992 SAE Technical Paper Series 921358 Warrendale, PA Society of Automotive Engineers
- Morgenthaler G. W. Fester D. A. Cooley C. G. 1991 An Assessment of Habitat Pressure, Oxygen Fraction, and EVA Suit Design for Space Operations, IAA 9th Man In Space Conference Cologne, Germany
- Morgenthaler G. W. Barrett E. G. Fester D. A. Cooley C. G. 1992 “Lunar Base Pressure, O2 Fraction, and ExtraHabitat Activity Suit Design,” Proceedings of the Third International Conference in Engineering Construction and Operations in Space III (Space ‘92) II Denver, CO. 1720 1727
- American Institute of Aeronautics and Astronautics 1990 Assessment of Technologies for the Space Exploration Initiative (SEI) Final Report to the NASA Office of Aeronautics, Exploration and Technology 58 64
- Waligora J. M. Horrigan D. J. Nicogossian A. 1991 “The Physiology of Spacecraft and Space Suit Atmosphere Selection,” Acta Astronautica 23 171 177
- Jones E. M. Schmitt H. H. 1992 “Pressure Suit Requirements for Moon and Mars EVA's,” Proceedings of the Third International Conference in Engineering, Construction and Operations in Space III II Denver, CO 1701 1708
- Greider H. R. 1984 “Atmosphere Composition,” Space Station Medical Sciences Concents , NASA TM-58225 39 41
- Gargioli E. Lobascio C 1992 “The Effects of a Reduced Pressure Scenario on the Columbus APM Environmental Control System,” Proceedings of the 22nd International Conference on Environmental Systems Seattle, Washington July 13-16, 1992 SAE Technical Paper Series 921247 Warrendale, PA Society of Automotive Engineers
- Loucks M. Morgenthaler G et al. 1992 Construction of the First Mars Outpost Report #25, Center for Space Construction University of Colorado Boulder, Colorado
- NASA-JSC 1989 Report of the 90-dav Study on Human Exploration of the Moon and Mars Houston, TX
- Boeing Aerospace and Electronics 1991 Space Transfer Concepts and Analysis for Exploration Missions Final Repot Phase-1, #NAS-37857, BDSG # D615-10030-2 Huntsville, AL
- Eshbach O. W. 1952 Handbook of Engineering Fundamentals Wiley Engineering Handbook Series John Wiley $ Sons, Inc. New York 8-36 8-40
- Heimach C. E. 1988 Low Cost Access to Space Airforce Space Systems
- Chan K. Montoya A. 1990 Launch Facility Constraints on the Space Exploration Initiative Center for Space Construction, Tech-Note #97 University of Colorado
- Atkinson D. R. Coombs C. R. Crowell L. B. Watts A. J. 1992 Modeling the Near-Earth space Environment Using LDEF Pata NASA Langley Research Center Second LDEF Post-Retrieval Symposium
- Hartman W. K. 1972 Moons and Planets Wadsworth Publishing Company Belmont, CA. 365