Numerical Investigation of Split Injection Strategies and Injector Nozzle Bore Influence on Combustion and Emissions

Nhad K. Frhan Al-Abboodi; Farah Abdulzahra Taher

doi:10.37934/cfdl.15.8.5072

Authors

Nhad K. Frhan Al-Abboodi Department of mechanical, Faculty of Engineering, Wasit University, 52001 Wasit, Iraq
Farah Abdulzahra Taher Department of mechanical, Faculty of Engineering, Wasit University, 52001 Wasit, Iraq

DOI:

https://doi.org/10.37934/cfdl.15.8.5072

Keywords:

Split injection strategies, Spirulina biodiesel, diesel engines, NOx, ignition delay

Abstract

The power generation mainly depends on fossil diesel fuel, the primary source of harmful emissions and global warming. Therefore, the researcher aims to explore alternative fuels that got greater attention in compression ignition engines. The commercial Diesel-RK software simulates the current numerical study of diesel engine direct injection with speed engine 1500 rpm, compression ratio 17.5, single cylinder, and naturally aspirated. In the basis of the parliamentary research, the literature did not investigate the influence of combustion and emission characteristics of compression ignition engines by using various double and trouble injection strategies along with different injector nozzle bore sizes. Also, the initiative was undertaken to study the effect of the different diesel-biodiesel blends ratio studied, SP20 (80% diesel+20% spirulina), Sp40(60% diesel+40% spirulina), and Sp100(0% diesel +100% spirulina) While the scope of the gap expanded to include a comparison of results with baseline diesel fuel. The results show that MPR increased by 4.2%, maximum gas temperature increased by 8.9%, ignition delay increased by 7.9%, maximum heat release rate decreased by 9.5%, NOx decreased by 7.8%, CO2 decreased by 3.9%, and particularly matter emissions decreased by 6.3% were compared to the double injection scheme , at 0.2 mm(INB)

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Author Biographies

Nhad K. Frhan Al-Abboodi, Department of mechanical, Faculty of Engineering, Wasit University, 52001 Wasit, Iraq

nkadhum@uowasit.edu.iq

Farah Abdulzahra Taher, Department of mechanical, Faculty of Engineering, Wasit University, 52001 Wasit, Iraq

ftahar@uowasit.edu.iq

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