NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Primary helium heater for propellant pressurization systemsThe primary helium heater is a unique design that provides direct heating of pressurant gas for large pressure fed propulsion systems. It has been conceptually designed to supply a heated (800-1000 R) pressurization gas to both a liquid oxygen and an RP-1 propellant tank. This pressurization gas is generated within the heater by mixing super critical helium (40-300 R and 3000-1600 psi) with an appropriate amount of combustion products from a 4:1 throttling stoichiometric LO2/LH2 combustor. This simple, low cost and reliable mixer utilizes the large quantity of helium to provide stoichiometric combustor cooling, extend the throttling limits and enhance the combustion stability margin. Preliminary combustion, thermal, and CFD analyses confirm that this low-pressure-drop direct helium heater can provide the constant-temperature pressurant suitable for tank pressurization of both fuel and oxidizer tanks of large pressure fed vehicles.
Document ID
19910059607
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Reichmuth, D. M.
(Aerojet-General Corp. Sacramento, CA, United States)
Nguyen, T. V.
(Aerojet-General Corp. Sacramento, CA, United States)
Pieper, J. L.
(Aerojet, Propulsion Div., Sacramento CA, United States)
Date Acquired
August 15, 2013
Publication Date
June 1, 1991
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
AIAA PAPER 91-2408
Accession Number
91A44230
Funding Number(s)
CONTRACT_GRANT: NAS8-37666
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available