LSOPP II-A Program for Advanced EVA System Modeling and Trade Studies

A computer analysis program designed to predict and evaluate the steady state performance and size of integrated extravehicular mobility unit (EMU) life support systems has been developed for advanced missions. Trade study evaluations for various extravehicular activity (EVA) technologies can be accomplished using the Life Support Options Performance Program, version 2.0 (LSOPP II).

LSOPP II is an interactive menu-driven program based upon a dual loop structure (vent loop - water loop). It solves for the outlet flow conditions of each component in a loop, given the associated heat loads and inlet flow conditions. System and component results of LSOPP II include heat load, flow rate, pressure, temperature, power, weight, and volume.