Computational Fluid Dynamics Analysis of High Injection Pressure Blended Biodiesel

International Research and Innovation Summit 2017

Khalid, Amir^1,2 ; Jaat, Norrizam^1,2 ; Hushim, Mohd Faisal^1 ; Manshoor, Bukhari^2 ; Zaman, Izzuddin^3 ; Sapit, Azwan^2 ; Razali, Azahari^2

Automotive and Combustion Synergies Technology Group, Advanced Technology Centre (ATC), Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Parit Raja, Batu Pahat Johor

86400, Malaysia^1

Centre for Energy and Industrial Environment Studies (CEIES), Universiti Tun Hussein Onn Malaysia, Parit Raja, Johor, Batu Pahat

86400, Malaysia^2

Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, Parit Raja, Johor, Batu Pahat

86400, Malaysia^3

关键词: Combustion pro-cess;    Combustion property;    Computational fluid dynamics analysis;    Emission reduction;    High injection pressures;    Injection conditions;    Injection pressures;    Spray characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/226/1/012002/pdf
DOI  :  10.1088/1757-899X/226/1/012002

来源: IOP

【 摘 要 】

Biodiesel have great potential for substitution with petrol fuel for the purpose of achieving clean energy production and emission reduction. Among the methods that can control the combustion properties, controlling of the fuel injection conditions is one of the successful methods. The purpose of this study is to investigate the effect of high injection pressure of biodiesel blends on spray characteristics using Computational Fluid Dynamics (CFD). Injection pressure was observed at 220 MPa, 250 MPa and 280 MPa. The ambient temperature was kept held at 1050 K and ambient pressure 8 MPa in order to simulate the effect of boost pressure or turbo charger during combustion process. Computational Fluid Dynamics were used to investigate the spray characteristics of biodiesel blends such as spray penetration length, spray angle and mixture formation of fuel-air mixing. The results shows that increases of injection pressure, wider spray angle is produced by biodiesel blends and diesel fuel. The injection pressure strongly affects the mixture formation, characteristics of fuel spray, longer spray penetration length thus promotes the fuel and air mixing.