AIAA-2015-3867 Effect of Water and Humidity on Hypergolic Propellant Ignition Delay
Figure 8. Photodiode IDT (a) and OH intensity (b) for TEAB aged in humid air The TEAB aged in dry air also shows that video IDT, OH and NH onset, and microphone amplitude are unaffected by the aging process. There are no trends which show any change in performance for this sample compared to the neat TEAB. Most of the data for the sample aged for 14 days in a dry nitrogen environment are inconclusive. However, both OH streak onsets show a day and day increase (p-value = 0.18 and 0.16) for 306 nm and 310 nm respectively. This is completely different than the null trend observed in the other aged samples. This trend is shown in Figure 9.
