Molecular Sieve CO2 Removal Systems: International Space Station and Lunar-Mars Life Support Test Project

Status of the Correlation Process of the V-HAB Simulation with Ground Tests and ISS Telemetry Data

“…During the "night" part, the ISS has to rely on battery power, which is recharged during the "day". To minimize the battery power CDRA needs, power saving modes and strategies are discussed in a paper by Supra and Brasseaux in 1997 16 . These power saving efforts result in performance changes that have to be taken into account for the simulation of the ISS ECLSS if they are used.…”

Modeling of CO2 mass transport across a hollow fiber membrane reactor filled with immobilized enzyme

“…On the other hand, control of CO 2 within a certain range is an important task, such as closed life‐support systems. Now, CO 2 capture or removal technologies used in the closed spaces are mainly classified into three categories: physical adsorption including molecular sieve and activated carbon,2 chemical absorption including metal oxides, solid and liquid amines,3 and biological approaches including microalgae and higher order plants 4–6. However, these systems have some limitations, such as, possible poisonous substance produced during the regeneration for amines, large quantities of consumption for metal oxides, corresponding large volume and weight due to the predesiccation for molecular sieve, and need to be cultured in water system for microalgae.…”