The Evaluation and Application of Chemically Regenerative Atmospheric Control Systems

摘要

A survey and analysis is presented of carbon dioxide reduction, atmospheric regeneration systems. Emphasis was placed on inorganic chemical systems on the basis of availability, weight and power requirements, and compatibility with space vehicle design. The two most promising systems, methanization and carbonization (both utilizing hydrogen reduction of carbon dioxide into water and subsequent electrolysis of the water), were analyzed in detail and compared with other inorganic regeneration, biological, and open cycle systems. Both systems were evaluated with major emphasis given to the interaction between the complete vehicle design and the carbon dioxide removal and oxygen supply systems. A set of penalty curves were derived showing the effects on take-off weight of changes in the power penalty, leakage rate, water recovery system efficiency, and use of by-products from the carbon dioxide regeneration system. (Author)