Transition region ignition characteristics of n-heptane fuel sprays
作者： A. M. Danis , I. Namer , N. P. Cernansky
DOI:
关键词: Atmospheric pressure 、 Ignition system 、 Spark gap 、 Drop size 、 Materials science 、 Automotive engineering 、 Heptane 、 Capacitive discharge 、 Atomic physics 、 Electrode
摘要: Ignition studies were perferred on monodisperse n-heptane sprays at atmospheric pressure over a range of equivalence ratios and droplet diameters. A capacitive discharge spark ignition system was used as the source, providing independent control energy duration. Preliminary measurements made to optimize duration gap, optimum conditions being those which maximum frequency or probability observed. The effect for several energies determined 0.5 1.0 initial diameters 28 68 microns. Spark had little entire 15 170 mu s examined. durations 70 80 all subsequent work. gap optimized 0.6, 0.8 30, 40, 50, 60 microns by varying electrode spacing from 5.0 mm while maintaining constant energy. be 3.0 nearly conditions.
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