Preliminary numerical analysis of the ignition under the action of a pulsed nanosecond discharge has been made; it was shown that production of atomic oxygen by the discharge, will modify the ignition chemistry by perturbation of the radical pool.
With this method, a metallic organic compound blended with a low-boiling-point auxiliary, methoxydiethylborane/tetrahydrofuran (MDEB/THF) solution, was employed to modify the ignition performance of n-decane.
Results showed that the DMMP addition did not modify the ignition delay times obtained with the C2H4 mixture, while a strong promoting effect was observed with CH4.
We modified the ignition apparatus as so it could be performed using electromagnetic force, we simulated spark phenomena in air conditioners and analyzed the disproportionation process of trifluoroethylene using that equipment.
By modifying the dispersion system and the ignition delay time, and hence the flow field and turbulence intensity during the combustion process, the 20-l dust explosion vessels have been calibrated to give results comparable to the 1-m3 vessel as prescribed in the former standard ISO-61844).
Moreover, at higher O2 mole fraction and discharge repetition frequency, the in situ discharge significantly modifies the characteristics of ignition and extinction, thus creating a new monotonically and fully stretched ignition S-curve without an extinction limit.
We modified the locus of ignition in a mixture flow to decrease the temporal extent of flame contact with the wall.
However, human ignition modifies the rhythm of fire episodes occurrence (fire frequency), whereas land use alters vegetation composition and fuel load, and thus the amount of biomass burned.
The results are interpreted to suggest that the low-temperature redox reactions occurring prior to ignition modify the oxidizers, making them less stable and prone to rapid decomposition upon further heating.
The fuel formulations differ by the amount of elemental sulfur that is added to alter the decomposition temperature, mass burning rate, and to modify the mass fraction of low ignition temperature sulfur based decomposition gasses.
