2 September 2008 Examining water vapor content for purging critical space systems
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This paper describes two mathematical purge models, transient and steady-state, developed for investigation of purging critical space systems with stringent humidity requirements. The developed single-cell purge model correlates well with measured data from a purge-test engineering model. The validated purge models are being used to support various purging activities/plans associated with spacecraft/payload integration and test and spacecraft/launch vehicle integration. This paper also includes a dew-point analysis to address water-vapor condensation concern for purging critical space systems.
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Chien W. Chang, Chien W. Chang, Jeffrey D. Bush, Jeffrey D. Bush, Robert R. Peabody, Robert R. Peabody, } "Examining water vapor content for purging critical space systems", Proc. SPIE 7069, Optical System Contamination: Effects, Measurements, and Control 2008, 70690H (2 September 2008); doi: 10.1117/12.793884; https://doi.org/10.1117/12.793884

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