Experimental Investigation of Injection Strategies on Low Temperature Combustion Fuelled with Gasoline in a Compression Ignition Engine

Table 3

Parameters of maximum load for different injection strategies.

Injection strategies	Double	Single
SOI1 (°CA ATDC)	−43	—
SOI2 (°CA ATDC)	−23.5	−27.3
Split percentage	30%	—
CA50 (°CA ATDC)	10	10
EGR	45%	45%
Injection pressure (MPa)	50	50
Indicated thermal efficiency	44.1%	44.6%
Combustion efficiency	97.3%	98.4%
IMEP (MPa)	1.204	1.11
MPRR (MPa/°CA)	1.23	1.18
(MPa)	12.84	12.66
(g/kWh)	0.17	0.32
soot (g/kWh)	0.98	0.76
CO (g/kWh)	1.80	1.10
THC (g/kWh)	1.16	0.40