Effect of Water and Humidity on Hypergolic Propellant Ignition Delay


termination of that batch of samples



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AIAA-2015-3867 Effect of Water and Humidity on Hypergolic Propellant Ignition Delay
termination of that batch of samples
The humid environment samples pulled on days 6 and 7 were tested by dropping neat WFNA onto a few milligrams of the solid fuel left in the vials. Each sample was tested three times and each test was recorded at
5000 fps via the Phantom camera. The white, chalky samples did not ignite or produce noticeable vapor. The day 6 sample consistently showed vigorous gas production but only ignited once with an IDT beyond the video recording Downloaded by PURDUE UNIVERSITY on July 21, 2017 | http://arc.aiaa.org | DOI: 10.2514/6.2015-3867

American Institute of Aeronautics and Astronautics
9 about 2 s. The gel-consistency day 7 samples also showed vigorous gas production in all six tests. Each sample had one test that had a relatively fast IDT (13.8 ms and 20.6 ms. Three of the tests did not ignite and one had an IDT overs. The samples that maintained their liquid phase were all tested in the Hypertester.

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