Document Type : Review papers
Authors
1
Mechanical engineering department, Faculty of Engineering, Pharos University in Alexandria, Alexandria, Egypt Department of Mechanical Power Engineering, Faculty of Engineering, Tanta University, Tanta, Egypt
2
Mechanical Engineering Department, Faculty of Engineering, Pharos University in Alexandria, Alexandria, Egypt – Email: Mohamedalifarrag2031@gmail.com
3
Mechanical Engineering Department, Faculty of Engineering, Pharos University in Alexandria, Alexandria, Egypt
Abstract
The pursuit of sustainable energy solutions has intensified interest in enhancing the efficiency and reducing the environmental impact of compression ignition (CI) engines. This study investigates the role of innovative fuel additive technologies in improving diesel engine performance and sustainability. A range of advanced additives, including oxygenated compounds and nanomaterial-based formulations, were blended with conventional diesel fuel and tested under various engine loads. Experimental results revealed that the use of selected fuel additives led to a notable increase in brake thermal efficiency (BTE) by up to 6.5% and a reduction in brake specific fuel consumption (BSFC) by approximately 5.2% compared to baseline diesel operation. Moreover, significant decreases in harmful emissions were observed, with nitrogen oxides (NOx) reduced by 12%, particulate matter (PM) emissions decreased by 18%, and carbon monoxide (CO) emissions lowered by 15%. The enhancement in combustion characteristics, including shorter ignition delays and higher peak cylinder pressures, was attributed to improved fuel atomization and increased oxygen availability during combustion. These findings demonstrate that innovative fuel additive technologies can play a pivotal role in promoting the sustainability of CI engines, supporting global efforts to achieve cleaner transportation systems.
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