The integrated systems program is capable of simulating both nominal and anomalous operation of the Apollo cryogenics storage system (CSS). Two versions of the program exist; one for the Apollo 14 configuration and the other for J Type Mission configurations. The program consists of two mathematical models which are dynamically coupled. A model of the CSS components and lines determines the oxygen and hydrogen flowrate from each storage tank given the tank pressures and temperatures, and the electrical power subsystem and environmental control subsystem flow demands. Temperatures and pressures throughout the components and lines are also determined. A model of the CSS tankage determines the pressure and temperatures in the tanks given the flowrate from each tank and the thermal environment. The model accounts for tank stretch and includes simplified oxygen tank heater and stratification routines. The program is currently operational on the Univac 1108 computer.


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    Title :

    Apollo cryogenic integrated systems program


    Contributors:


    Publication date :

    1971-05-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




    Apollo cryogenic integrated systems program

    Barton, C. E. / Cunningham, J. E. / Seto, R. K. M. | NTRS | 1971


    Apollo Cryogenic Integrated Systems Program

    C. E. Barton / J. E. Cunningham / R. K. Seto | NTIS | 1971


    Apollo cryogenic systems programms. Programer's guide

    Lindsey, J. G. / Prewitt, J. I. | NTRS | 1971