Ignition delay time is a key parameter in evaluating the ignition processes of fuel mixtures. By using shock tube experiments, this paper compares three ignition criteria, namely, , visible light, and pressure under high and low diluent conditions, respectively. Main comparison principles include signal-to-noise ratio, readability of signal curves, and model validation. Different types of and visible light response curves are displayed. Experimental results indicate that is the most appropriate ignition criterion under high diluent conditions. Visible light is the second most suitable choice, whereas pressure is unsuitable as the ignition criterion. Under low diluent conditions relevantly, , visible light, and pressure can all be used as the ignition criteria. Moreover, visible light signals generally occur later than , and the visible-light reading results are correspondingly larger, whereas an overlarge gain factor can result in smaller visible-light reading results than those of . In summary, the optimum sequence of three ignition criteria decreases in the order of under different diluent conditions.
Shock Tube Experimental Studies on /Visible Light/Pressure as Ignition Delay Criteria
Journal of Propulsion and Power ; 33 , 4 ; 902-907
2017-07-01
Article (Journal)
Electronic Resource
English
Shock Tube Experimental Studies on CH/Visible Light/Pressure as Ignition Delay Criteria
Online Contents | 2017
|Shock Tube Experimental Studies on CH/Visible Light/Pressure as Ignition Delay Criteria
Online Contents | 2017
|Shock tube ignition delay studies of endothermic fuels.
AIAA | 1966
|Shock tube ignition delay studies of endothermic fuels
AIAA | 1965
|A SHOCK TUBE EXPERIMENTAL STUDY AND KINETIC MODELING OF M-XYLENE IGNITION DELAY
British Library Conference Proceedings | 2011
|