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CFD Analysis of the Natural Gas Based Carburetor for a Two Stroke Spark Ignition Engine

Harshwardhan Sharma1, Satyendra Singh2, and Ravi Goel1
1.Quantum School of Technology Roorkee, Uttarakhand, India
2.Kumaon Institute of Technology, Dwarahat, Uttarakhand, India

Abstract—In this paper Computational Fluid Dynamics (CFD) analysis has been carried out to study the flow characteristics of methane and air in the existing carburetor designed for a small capacity two stroke S.I engine. Then based upon the results obtained from the above analysis a new prototype carburetor having two gas inlets was designed. Further analysis was then performed on the prototype carburetor to study the effect of using two fuel inlets on the air-fuel ratio. The results of the simulation shows that a two hole carburetor give better fuel distribution characteristics than the existing carburetor.

Index Terms—CFD, Nozzle, Carburetor

Cite: Harshwardhan Sharma, Satyendra Singh, and Ravi Goe, "CFD Analysis of the Natural Gas Based Carburetor for a Two Stroke Spark Ignition Engine," International Journal of Mechanical Engineering and Robotics Research, Special Issue, Vol. 1, No. 1, pp. 82-88, January 2014.