Fuel octane effects on gasoline multiple premixed compression ignition (MPCI) mode

- Novel combustion concept called gasoline MPCI is proposed and demonstrated.
- Low octane gasoline MPCI has lower emissions and fuel consumption than diesel.
- MPCI mode overcomes the trade-off relationship between NO and soot in diesel.
- Effect of fuel octane on MPCI performance is investigated.
- Lower fuel octane is better for generating two-stage premixed combustion.