Analysis of high injection pressure and ambient temperature on biodiesel spray characteristics using computational fluid dynamics

2nd International Conference on Computational Fluid Dynamics in Research and Industry

力学;计算机科学;工业技术

Hashim, Akasha^1 ; Khalid, Amir^1,2 ; Jaat, Norrizam^2 ; Sapit, Azwan^1 ; Razali, Azahari^1 ; Nizam, Akmal^1

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

86400, Malaysia^1

Automotive and Combustion Synergies Technology Group, Advanced Technology Centre (ATC), Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Johor, Malaysia^2

关键词: Ambient conditions;    Combustion engines;    Combustion pro-cess;    High injection pressures;    Injection conditions;    Injection pressures;    Operating condition;    Spray characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/243/1/012049/pdf
DOI  :  10.1088/1757-899X/243/1/012049

来源: IOP

【 摘 要 】

Efficiency of combustion engines are highly affected by the formation of air-fuel mixture prior to ignition and combustion process. This research investigate the mixture formation and spray characteristics of biodiesel blends under variant in high ambient and injection conditions using Computational Fluid Dynamics (CFD). The spray characteristics such as spray penetration length, spray angle and fluid flow were observe under various operating conditions. Results show that increase in injection pressure increases the spray penetration length for both biodiesel and diesel. Results also indicate that higher spray angle of biodiesel can be seen as the injection pressure increases. This study concludes that spray characteristics of biodiesel blend is greatly affected by the injection and ambient conditions.