Finally, Table 3 summarizes engine characterization results from CALMEC. Effective compression ratio is found to be lower than the geometric compression ratio.
As described before, CALMEC uses the correlation proposed by Woschni .
Heat transfer coefficient calculated using the Woschni-like model used in CALMEC is compared with the approach based on experimentally measured velocities.
The combustion analysis was performed by means of an in-house tool named CALMEC, which is comprehensively described in .
Inputs to the 1-D model were experimental wall temperatures, injection strategy settings and fuel mass, as well as RoHR obtained with CALMEC. Experimental gas temperatures, pressures, and air mass flow were used as targets during model tuning.