Analysis of Performance, Combustion, and Emission Parameters in a Reactivity-Controlled Combustion Ignition (RCCI) Engine – an Intensive Review

The new diversion of research in the field of engine modification is reactivity-induced compression ignition (RCCI). Researchers recommend that RCCI is the solution for regulating pre-mixed combustion, thereby promoting lean air–fuel mixture combustion. It is also suitable for low-temperature operations. The combination of lean mixture and low-temperature operations leads to a reduction of the oxides of nitrogen and particles of soot production during combustion. This paper analyses the principle and methodology of RCCI and compares its performance with homogeneous controlled compression ignition (HCCI). An intensive literature review is done and a concluding report is compiled. This will be an essential content for researchers who pursue their experimental and analytical work in RCCI. The future scope of RCCI can be extended to alternate fuel sources such as biodiesel ethanol and natural gas by adopting HCCI concepts. However, there are a few limitations in this, such as higher HC and CO emissions, which may necessitate oxidation catalysts.