UMP Institutional Repository

Trends of Air Fuel Ratio on Engine Performance of Four Cylinder Direct Injection Hydrogen Fueled Engine

M. M., Rahman and R. A., Bakar and M. M., Noor and K., Kadirgama (2010) Trends of Air Fuel Ratio on Engine Performance of Four Cylinder Direct Injection Hydrogen Fueled Engine. European Journal of Technology and Advanced Engineering Research, 1. pp. 20-29. ISSN 1433-2248


Download (423kB)


The present study focuses on the effect of air-fuel ratio on the performance of four cylinder hydrogen fueled direct injection internal combustion engine. GT-Power was utilized to develop the model for direct injection engine. Air-fuel ratio was varied from rich limit to a lean limit. The rotational speed of the engine was varied from 1250 to 4500 rpm. The acquired results shown that the air fuel ratio are greatly influence on the brake mean effective pressure (BMEP), brake efficiency (BE), brake specific fuel consumption (BSFC) as well as the maximum cylinder temperature. It can be seen that the decreases of BMEP, BE and maximum cylinder temperature with increases of air fuel ratio and speed, however, increases the brake specific fuel consumption. For rich mixtures (low AFR), BMEP decreases almost linearly, then BMEP falls with a non-linear behavior. It can be observed

Item Type: Article
Additional Information: Prof. Dr. Md Mustafizur Rahman (M. M. Rahman) Prof. Dato’ Dr. Rosli Abu Bakar (R. A. Bakar) Dr. Kumaran Kadirgama (K. Kadirgama) Muhamad Mat Noor (M. M. Noor)
Uncontrolled Keywords: Hydrogen fueled engine; Air fuel ratio; Engine performance; Direct injection engine speed
Subjects: T Technology > TJ Mechanical engineering and machinery
Faculty/Division: Faculty of Mechanical Engineering
Depositing User: Pn. Hazlinda Abd Rahman
Date Deposited: 12 Mar 2012 07:29
Last Modified: 25 Jan 2018 05:49
Download Statistic: View Download Statistics

Actions (login required)

View Item View Item