An Experimental Study for Emission of Four Stroke Carbureted and Fuel Injection Motorcycle Engine

Adnan Katijan; Mohd Faruq Abdul Latif; Qamar Fairuz Zahmani; Shahid Zaman; Khairuldean Abdul Kadir; Ibham Veza

Authors

Adnan Katijan Facultyof Engineering Technology,Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia
Mohd Faruq Abdul Latif Faculty of Engineering Technology, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia
Qamar Fairuz Zahmani Faculty of Engineering Technology, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia
Shahid Zaman Depratment of Mechanical Engineering,Institute of Space Technology, P.O.Box 2750, Islamabad 44000, Pakistan
Khairuldean Abdul Kadir Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310, Johor Baharu, Johor Malaysia
Ibham Veza Faculty of MechanicalEngineering,Universiti Teknologi Malaysia, 81310, Johor Baharu, Johor Malaysia

Keywords:

Carbureted engine, Fuel injection system, CO2, Hydrocarbon (HC)

Abstract

Anti-pollution laws in many countries impose a limit on thevolumeof poisonous gases which may be emitted from a vehicle’s exhaust. The aim of this study is to compare the emission characteristic of a carbureted and fuel injection system of a four-stroke motorcycle engine. For this objective, a carbureted engine of Honda Wave 125 cc was converted into a fuel injection system. Emissions of CO, CO2 and hydrocarbon (HC) were measured in the lab. The test was conducted at three different speeds: 2000, 4000 and 6000 RPM; and at two loads: 5Nm and 10Nm. Upon conversion of the motorcycle engine, the results show improvement in term of reduction of emissions of all three gasses. Emission at a 5 Nm load improved by 62.6%, 29.75% and 11.33% for CO, HC and CO2 respectively. The results also showed a similar trend at a 10 Nm load, where the emissions improved to 75.86%, 30.1% and 47.71% for CO, CO2 and HC respectively. The results show that fuel injection is evidently a better system as it delivers lower emissions.