Numerical Simulation of Spark Ignition Engine with Pre Combustion Chamber (PCC)
Keywords:pre-combustion chamber, SI engine, natural gas, cold flow simulation
In this paper, a numerical model of a spark ignition (SI) engine was developed to simulate the effect of pre-combustion chamber (PCC) on the dynamics flow inside the engine. Four concept designs of PCC were used in this simulation. The single cylinder SI engine model and PCC were generated by using CATIA V5 R21 software. The SI model is based on Loncin G200F (D) engine generator. After that, cold flow simulation is used to analyze each type of the PCC powered with natural gas fuel by ANSYS Fluent 16.0 simulation software. Each of the PCC simulation investigated by its flow behavior for the velocity vectors and turbulence kinetic energy (TKE). This PCC can give bigger effect to the engine performance by 10% - 15% using natural gas as the fuel source. The result revealed that PCC1 is the best concept design of precombustion chamber as it generates highest velocity vectors and TKE.