"A Trade Study on Sabatier Co2 Reduction Subsystem for Advanced Missions
Document Number: 2001-01-2293
Date Published: July 2001
Author(s):
Frank F. Jeng - Lockheed Martin Space Opeations
Chin H. Lin - NASA Johnson Space Center
Abstract:
An analysis on O2 usage, water contents in food, CO2 and H2 availability, water generation capability of CO2 reduction subsystems, water balance, etc., was conducted to evaluate the feasibility of integrating a CO2 reduction subsystem into an air revitalization system.
The effects of CO2 reduction subsystem operating parameters on water recovery efficiencies and water generation capabilities were analyzed. Water mass balances for advanced missions were conducted for advanced missions. Equivalent system mass method was used to calculate payoff time for integrating the CO2 reduction subsystem into an air revitalization system. Decision criteria based on payoff time for integrating a CRS for advanced missions were developed."
Please note that the term "reduction", as used herein, has a dual meaning. The amount of Carbon Dioxide is physically reduced by, in the technical sense, chemically "reducing" it, i.e., "de-oxidizing" it, into it's basic components, Carbon and Oxygen.
And, with some extrapolation, we infer that the technology exists to, by recycling a much-demonized coal use by-product, effect the "revitalization" of our planetary "air".