The test variables include the type of fuel (BD1, BD2, and gas oil), equivalence ratio, ignition temperature, and ignition pressure.
A parametric study shows the model to behave in a satisfactory manner in response to changes in fuel type, equivalence ratio, ignition timing, compression ratio, and engine speed.
Highly branched alkanes, iso-octane and iso-cetane, were found to have very distinct two stage ignition where the ratio of the time scales of total ignition to first-stage ignition delay ranges from approximately two to three.
To determine the effect of the throttle position, compression ratio, ignition timing and air-to-fuel ratio in the entire parameter space systematically, techniques of Design of Experiments are applied.
In parallel with laser ignition, the equivalence ratio and droplet characteristics such as the concentration, size, and distribution of spray combustion are simultaneously obtained for a feedback control system.
We trained the RF-cost sensitive model using different ratios of ignition and nonignition samples to find the best sample ratio, the results of which are shown in Table 7.
This work defines density factor as the ratio of before ignition density to after ignition density of the ignition mixture.
The effects of reflected shock pressure and equivalence ratio on ignition delay time were determined and common trends highlighted.
Finally, the impact of pressure and equivalence ratio on ignition delay time is evaluated over a broad range of pressure (1 50 bar) and equivalence ratio (ϕ = 0.2 3).
The control strategies in EMS are intended for air-to-fuel ratio control, ignition control, electronic throttle control, idle speed control, etc.
