Effect of Dual-fuelled CNG and Gasoline on Spark Ignition engine performance and Emissions behaviors at different loads

Authors

Medhat Elkelawy Prof. Dr, Eng., Mechanical engineering department, Faculty of Engineering, Pharos University in Alexandria, Alexandria, Egypt – Email medhat.elkelawy@pua.edu.eg Mechanical Power Engineering Departments, Faculty of Engineering, Tanta University, Tanta, EgyptFollow
M.M. Bassuoni Prof. Dr., Department of Mechanical Power Engineering, Faculty of Engineering, Tanta University, Tanta, EgyptFollow
Hagar Alm-Eldin Bastawissi, Department of Mechanical Power Engineering, Faculty of Engineering, Tanta University, Tanta, EgyptFollow
Saied I. Haiba Eng., Mechanical Power Eng. Departments, Faculty of Engineering, Tanta University, Tanta, EgyptFollow

DOI

10.70259/engJER.2024.861810

Abstract

Engine emissions are one of numerous factors that have detrimentally affected the environment, such as global warming, which is the result of growing exhaust gases, practically carbon dioxide (CO2). These emissions have substantially influenced researchers to develop strategic initiatives to minimize the carbon contents of fuels. The purpose of this research is to investigate the characteristics of internal combustion (SI) engines fueled by gasoline and compressed natural gas (CNG) blends. The experiments are performed using a HONDA 4-stroke, single-cylinder, and air-cooled SI engine. Five CNG concentrations are evaluated, the concentrations range from 0.5 to 2.5 L/min with a 0.5 L/min step increase. In addition, an electrical loading board contains ten lamps of 0.5 KW power and 8 KVA Variac is used to generate and control the load. The exhaust emission factor, exhaust Gases temperature (Tex), brake thermal efficiency (BTE), and brake specific fuel combustion (BSFC) are parametric indicators of engine efficiency. The best blend ratio was 1.0 L/min, which improved the average thermal efficiency to 22.1% compared to gasoline at 17.77%, resulting in a 24.42% improvement.

Recommended Citation

Elkelawy, Medhat Prof. Dr, Eng.; Bassuoni, M.M. Prof. Dr.; Bastawissi, Hagar Alm-Eldin; and Haiba, Saied I. Eng. (2024) "Effect of Dual-fuelled CNG and Gasoline on Spark Ignition engine performance and Emissions behaviors at different loads," Journal of Engineering Research: Vol. 8: Iss. 6, Article 10.
DOI: 10.70259/engJER.2024.861810
Available at: https://digitalcommons.aaru.edu.jo/erjeng/vol8/iss6/10