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advances in lo2 propellant conditioningThis paper describes the cryogenic testing and analysis that has recently been completed as part of a multi-year effort to develop a new, more robust and operable LO2 propellant conditioning system. Phase 1 of the program consisted of feasibility demonstrations ot four novel propellant conditioning concepts. A no-bleed, passive propellant conditioning option was shown for the first time to successfully provide desired propellant inlet conditions. The benefits of passive conditioning are reduced operations costs, decreased hardware costs, enhanced operability and increased reliability on future expendable launch vehicles In Phase 2 of the test program, effects of major design parameters were studied and design correlation for future vehicle design were developed. Simultaneously, analytical models were developed and validated. Over 100 tests were conducted with a full-scale feedline using LN2 as the test fluid. A circulation pump provided a range of pressure and flow conditions. The test results showed that the passive propellant conditioning system is insensitive to variations in many of the parameters. The test program provides the validation necessary to incorporate the passive conditioning system into the baseline of future vehicles. Modeling of these systems using computational fluid dynamics seems highly promising.
Document ID
19970005653
Document Type
Conference Paper
Authors
Mehta, Gopal
(Martin Marietta Astronautics Huntsville, AL United States)
Orth, Michael
(Martin Marietta Astronautics Huntsville, AL United States)
Stone, William
(Martin Marietta Astronautics Huntsville, AL United States)
Perry, Gretchen
(NASA Marshall Space Flight Center Huntsville, AL United States)
Holt, Kimberly
(NASA Marshall Space Flight Center Huntsville, AL United States)
Suter, John
(NASA Marshall Space Flight Center Huntsville, AL United States)
Date Acquired
August 17, 2013
Publication Date
January 1, 1994
Subject Category
Propellants and Fuels
Report/Patent Number
NASA-TM-112142
NAS 1.15:112142
AIAA Paper 94-2887
Meeting Information
Joint Propulsion(Indianapolis, IN)
Distribution Limits
Public
Copyright
Public Use Permitted.
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