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Effect of Water and Humidity on Hypergolic Propellant Ignition DelayAIAA-2015-3867 Effect of Water and Humidity on Hypergolic Propellant Ignition Delay
American Institute of Aeronautics and Astronautics 1 Effect of Water and Humidity on Hypergolic Propellant Ignition and Combustion Nicholas Zarbo 1 , Hatem Belal 2 , Timothée Pourpoint 3 Purdue University, West Lafayette, IN, 47907 Triethylamine borane (TEAB) and white fuming nitric acid (WFNA) is a promising hypergolic propellant combination being studied as an alternative to monomethyl hydrazine (MMH) and red fuming nitric acid (RFNA). Nitric acid and MMH are both known to be hygroscopic and their performance is affected by their water content. However, the effect of water on TEAB is yet to be determined. The goal of this research is to characterize the major consequences of water presence on the ignition and combustion performance of TEAB and to compare those results to MMH. TEAB samples are put through accelerated aging in humid and dry environments. Along with the aged TEAB, neat TEAB and neat
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