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Testing and Analytical Modeling for Purging Process of a Cryogenic LineTo gain confidence in developing analytical models of the purging process for the cryogenic main propulsion systems of upper stage, two test series were conducted. Test article, a 3.35m long with the diameter of 20 cm incline line, was filled with liquid (LH2)or gaseous hydrogen (GH2) and then purged with gaseous helium (GHe). Total of 10 tests were conducted. Influences of GHe flow rates and initial temperatures were evaluated. Generalized Fluid System Simulation Program (GFSSP), an in-house general-purpose fluid system analyzer, was utilized to model and simulate selective tests.
Document ID
20150016516
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Hedayat, A. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Mazurkivich, P. V. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Nelson, M. A. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Majumdar, A. K. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 27, 2015
Publication Date
June 28, 2015
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
M15-4695
Report Number: M15-4695
Meeting Information
Meeting: Cryogenic Engineering Conference/International Cryogenic Materials Conference (CEC/ICMC 2015)
Location: Tucson, AZ
Country: United States
Start Date: June 28, 2015
End Date: July 2, 2015
Sponsors: Institute of Electrical and Electronics Engineers
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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