Environmental Control and Life Support System Analysis Tools for the Space Station Era

This paper describes the concept of a developing emulation, simulation, sizing, and technology assessment program (ESSTAP) which can be used effectively for the various functional disciplines (structures, power, ECLSS, etc.) beginning with the initial system selection and conceptual design processes and continuing on through the mission operation and growth phases of the Space Station for the purpose of minimizing overall program costs. It will discuss the basic requirements for these tools, as currently envisioned for the Environmental Control and Life Support System (ECLSS), identify their intended and potential uses and applications, and present examples and status of several representative tools. The development and application of a Space Station Atmospheric Revitalization Subsystem (ARS) demonstration model to be used for concept verification will also be discussed.