Experiment Investigations on CNG Injection System Performance in Single Cylinder Four Stroke SI Engine

Authors

  • Rakesh K. Chotalia Mechanical Engineering Department, Merchant Institute of Technology, Piludra
  • Karan Kanani Mechanical Engineering Departments, Merchant Institute of Technology, Piludra
  • Dr.Vikash Patel Mechanical Engineering Departments, C.K. Pithawalla college of Engineering and Technology,Surat
  • Bhavesh Patel Automobile Engineering Departments, Laxmi Institute of Technology, Sarigam
  • Keval Patel Automobile Engineering Departments, Laxmi Institute of Technology, Sarigam

Keywords:

SI Engine, CNG, injector, Carburetor, Throttle body

Abstract

Compressed Natural Gas (CNG) is regarded as one of the most promising alternative fuels, and may be the
cleanest fuel for the spark ignited (SI) engine. Now a days CNG kit for SI engine contains various types of injection
systems with ECU (Electronic control unit). This research deals with single point injection system. It is used as
gaseous fuel injector to mix the gaseous fuel with the intake air in the manifold at one location for all cylinders of an
engine. In this case, fuel is injected at a single location much like a gas mixer or carburettor. Single point electronic
injection offers the advantages of more precise control of the amount of gaseous fuel entering the intake charge of the
engine, as well as the economy of using a minimum number of injectors. This research deals with experimental
investigations on fuel injection using CNG in Single Cylinder four Stroke SI Engine(125 cc). Desired pressure (3 to 5
bar) is injected in the intake manifold using CNG injector. Different parameter such as BSFC, BTE, IP, Mechanical
efficiency and Exhaust emissions are studied. Comparison of petrol and CNG for the above parameter are done. Form
the above study following conclusion are drawn. BSFC of petrol is higher as compared to CNG. BTE of CNG is
higher as compared to Petrol. Mechanical efficiency of petrol is higher as compared to efficiency of CNG. Exhaust
emissions of CO2, Co, and HC also decreasing in CNG engine.

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Published

2017-05-25

How to Cite

Rakesh K. Chotalia, Karan Kanani, Dr.Vikash Patel, Bhavesh Patel, & Keval Patel. (2017). Experiment Investigations on CNG Injection System Performance in Single Cylinder Four Stroke SI Engine. International Journal of Advance Research in Engineering, Science & Technology, 4(5), 72–79. Retrieved from https://ijarest.org/index.php/ijarest/article/view/1502

Issue

Vol. 4 No. 5 (2017): Volume: 04, Issue: 05 - May, 2017.

Section

Articles