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Apollo cryogenic integrated systems programThe 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.
Document ID
19720016147
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Seto, R. K. M. (TRW Systems Group Houston, TX, United States)
Cunningham, J. E. (TRW Systems Group Houston, TX, United States)
Date Acquired
August 6, 2013
Publication Date
May 1, 1971
Publication Information
Publication: NASA. Manned Spacecraft Center MSC Cryog. Symp. Papers p331-406 (SEE N72-23785 14-27)
Subject Category
Physics, General
Accession Number
72N23797
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19720016135Collected WorksMSC Cryogenics Symposium papers
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