Analysis of Injection Pressure and High Ambient Density of Biodiesel Spray using Computational Fluid Dynamics

Norrizam  Jaat; Amir  Khalid; Norrizal  Mustaffa; Fathul Hakim  Zulkifli; Norshuhaila  Mohamed Sunar; Ridwan Saputra  Nursal; Mahmod Abd Hakim  Mohamad; Djamal  Didane

Authors

Norrizam Jaat Automotive and Combustion Synergies Technology Group, Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Johor, Malaysia
Amir Khalid Automotive and Combustion Synergies Technology Group, Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Johor, Malaysia
Norrizal Mustaffa Automotive and Combustion Synergies Technology Group, Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Johor, Malaysia
Fathul Hakim Zulkifli Automotive and Combustion Synergies Technology Group, Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Johor, Malaysia
Norshuhaila Mohamed Sunar Automotive and Combustion Synergies Technology Group, Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Johor, Malaysia
Ridwan Saputra Nursal Department of Marine Engineering, Politeknik Bagan Datuk, 36400, Perak, Malaysia
Mahmod Abd Hakim Mohamad Centre for Diploma Studies, Universiti Tun Hussein Onn Malaysia, Johor, Malaysia
Djamal Didane Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, Johor, Malaysia

Keywords:

diesel engine, biodiesel, ambient, injection pressure, spray characteristics, computational fluid dynamics

Abstract

Blended fuels have great potential for substitution with petroleum fuel for the purpose of emission control and fuel efficiency improvement. This research is to investigate the effect of high injection pressure and high ambient condition of biodiesel blends on spray characteristics using Computational Fluid Dynamics (CFD). The variables in this study are the various injection pressure (220, 250 and 280 MPa) and ambient temperatures (850, 950, and 1050 K), while the ambient pressure is kept constant at 8 MPa. The simulation in ANSYS FLUENT was used to observe the spray characteristics of biodiesel blends at various conditions. Simulation results show that longer spray penetration length with smaller spray significantly affects the mixture formation biodiesel blends compared to pure diesel at high injection pressure and ambient temperature.