Technical Paper
Development and Application of a Generalized Transient Computer Program for Shuttle Atmospheric Pressure and Compostition Control Analysis
1984-07-01
840960
A generalized computer program for analysis of pressure and composition in a multiple-volume system has been developed by the National Aeronautics and Space Administration (NASA). This paper describes the development of the program, outlines the program's capabilities, and illustrates the application of the program to Space Shuttle-related atmospheric pressure and composition control analyses. The program's features include the calculation of transient partial pressures of four gases in four volumes, an option for either isothermal or temperature-transient analyses, simulation of pressure and composition control hardware, and simulation involving 0-10 crewmembers. This computer program has been used successfully for a variety of Shuttle-related analyses to support hardware design, develop operating procedures, and provide real-time Shuttle mission support. Due to the versatility of this computer program, it will be utilized for Space Station program analyses.