NASA NTRS · 20150016516
Testing and Analytical Modeling for Purging Process of a Cryogenic Line
Abstract
To 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.
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Hedayat, A., Mazurkivich, P. V., Nelson, M. A., Majumdar, A. K.. 2015-06-28. Testing and Analytical Modeling for Purging Process of a Cryogenic Line. https://ntrs.nasa.gov/citations/20150016516
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