Investigation of Mars In-Situ Propellant Production

972496

07/01/1997

Event
International Conference On Environmental Systems
Authors Abstract
Content
In-situ production of oxygen and methane for utilization as a return propellant from Mars for both sample-return and manned missions is currently being developed by NASA in cooperation with major aerospace companies. Various technologies are being evaluated using computer modeling and analysis at the system level.
An integrated system that processes the carbon dioxide in the Mars atmosphere to produce liquid propellants has been analyzed. The system is based on the Sabatier reaction that utilizes carbon dioxide and hydrogen to produce methane and water. The water is then electrolyzed to produce hydrogen and oxygen. While the hydrogen is recycled, the propellant gases are liquefied and stored for later use. The process model considers the surface conditions on Mars (temperature, pressure, composition), energy usage, and thermal integration effects on the overall system weight and size. Current mission scenarios require a system that will produce 0.7 kg of propellant a day for 500 days.
This paper will outline a baseline system for a return propellant production plant, including power requirements and weight estimates, as well as identify key technological improvements required to develop a viable and robust system.
Meta TagsDetails
DOI
https://doi.org/10.4271/972496
Pages
9
Citation
Reddig, M., and MacKnight, A., "Investigation of Mars In-Situ Propellant Production," SAE Technical Paper 972496, 1997, https://doi.org/10.4271/972496.
Additional Details
Publisher
Published
Jul 1, 1997
Product Code
972496
Content Type
Technical Paper
Language
English