Consistency between tabulated kinetics and direct-integration was verified in terms of computed values of ignition delay
, flame lift-off length, and heat release rate.
n-Butane Ignition Delay
Time Measurements at High Pressure and Detailed Chemical Kinetic Modeling", Combust.
Figure 5 compares the ignition delay
for the three grids for an ambient temperature of 900 K.
(ID), along with other physical characteristics such as flame propagation, extinction and ignition, represent combustion properties dependent on fuel reactivity including volatility .
16], Ignition delay
times, lift-off lengths and flame structures compare well to the experimental results, suggesting that the RANS-TPDF approach is promising.
And the ignition delay
of tested lubricants can be measured at different temperature.
The results showed that the ignition delay
in the main chamber decreased with higher jet velocities.
This is because of short ignition delay
and pre injection timing for biodiesel .
It is well known that the ignition delay
period is governed by complex fuel dependent physical and chemical phenomena, which prepare the injected fuel for combustion [1,2].
onde DCN = Derived Cetane Number ou Numero de Cetano Derivado (adimensional) e ID = Ignition Delay
ou Atraso de Ignicao (milisegundos).
This part of the elaborated model will permit us to determine parameters of the process such as the evaporation rate of the atomized fuel, its ignition delay
, and the duration of combustion.
In their study hydrogen was added as a mass fraction of the total fuel, and increasing the 'mass share' of hydrogen had the following effects: decreased CO, increased NO, increased ignition delay
, decreased HC, and both increased and decreased efficiency, depending on the amount of hydrogen and type of base fuel used (Senthil Kumar et al.