Integrated Model of G189A and Aspen-Plus for the Transient Modeling of Extravehicular Activity Atmospheric Control Systems
A computer modeling tool is being developed for the detailed transient modeling of an Extravehicular Activity Atmospheric Control Subsystem (EVA ACS). An EVA ACS includes the astronaut, CO2 removal, moisture control, temperature control, and oxygen make-up components. This modeling tool will be used in trade studies evaluating competing components and subsystems to guide the selection and development of hardware for lunar and Martian missions. Several computerized modeling packages already exist, but no single program has all the capabilities needed. These capabilities include models of all EVA components on both steady-state and transient bases and sophisticated, general-purpose chemical process modeling capabilities.