Physics
Scientific paper
Aug 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994jann....1..101p&link_type=abstract
In Johns Hopkins Univ., The 1994 JANNAF Safety and Environmental Protection Subcommittee Meeting, Volume 1 p 101-112 (SEE N95-28
Physics
Aerozine, Chemical Reactions, Delta Launch Vehicle, Liquid Oxygen, Nitrogen Tetroxide, Prediction Analysis Techniques, Propellant Combustion, Propellant Tests, Solid Rocket Propellants, Titan 4 Launch Vehicle, Atmospheric Pressure, Combustion Chambers, Combustion Products, Gas Pressure, Gas Temperature, Internal Pressure, Pressure Measurement, Temperature Measurement, Vapor Pressure
Scientific paper
A series of tests involving the combustion of solid and liquid propellants used to fuel the Titan 2, Titan 4, and Delta 2 launch vehicles was performed. The purpose of these tests was to evaluate the nature and amounts of combustion gases from reacting these propellants in various proportions, and to apply the derived data to predicting toxic chemical emissions arising from a launch vehicle explosion. Propellants tested in this study included Aerozine-50 and nitrogen tetroxide (liquid propellants used in the Titan 2 and Titan 4 launch vehicles), PBAN solid propellant (used on the Titan 4 solid rocket motor), RP-1 and liquid oxygen (liquid propellants used to fuel the Delta 2 launch vehicle), and the Castor IVA solid rocket propellant used on the Delta 2 first stage engine. Tests were conducted in a 150-liter stainless steel combustion chamber in air at nominal pressure (0.8 atmospheres at Denver barometric conditions). Measurements of the chamber gas temperature and internal pressure were taken and gas samples were withdrawn and analyzed for expected combustion gases, unreacted propellants, organic vapors, and oxygen reacted from the air. A stainless steel witness plate was used to collect condensates which formed during the course of the propellant combustion tests. Results of this study suggest significantly different chemical fates for some of the rocket propellants than those predicted by chemical theory only. A description of the test parameters, results, and application to source predictions is presented.
Banning D. W.
Prince S. P.
Wiseman F. L.
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