Alternate Test Methods for High Pressure Engine Component Testing 911125

This paper presents an analysis of potential methods for the testing of Space Shuttle Main Engine turbopump assemblies in a modified Component Test Facility at Stennis Space Center. In particular, the test methods will support long-duration (approximately 250 seconds) green run (acceptance) tests. Six potential test methods were considered, including the traditional, fully pressure-fed test method, some test methods involving engine systems, and some test methods involving recirculation of the pump outlet flow, or “bootstrapping.” Two of these methods were investigated in sufficient detail to provide ROM cost estimates: the fully pressure-fed method, and one of the bootstrap methods.


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