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  • Title: Reduction of Fossil Fuel Usage and Emissions of Diesel Engines by the Application of Quaternary Blends and Varied Fuel Injection Pressures.
    Author: Khan MM, Hasnain SMM, Kadian AK, Sharma RP, Abbas M, Pandey S.
    Journal: ACS Omega; 2024 Jun 18; 9(24):26388-26399. PubMed ID: 38911712.
    Abstract:
    The increasing energy demand has led to the exhaustion of mineral fuel resources and an environmental menace. Biodiesel and alcohol, as oxygenated fuels, offer promising potential for diesel engines. Moreover, the deviation in the fuel injection pressure (IP) favors improvement of the engine performance and reduction of flue gases. The contemporary research aims to explore sustainable biofuel that is an alternative to diesel and to achieve cleaner emissions with enhanced engine performance. The experiment involves testing of a diesel engine tank by quaternary blends comprising diesel, sunflower biodiesel, sunflower oil, and alcohol in the volumetric ratio of 50:25:5:20. The IP was varied from 300, 400, 500, to 600 bar at different engine loads of 10 and 20 N m at 1800 rpm of shaft speed. The quality of the quaternary blend was varied by the inclusion of alcohol having different carbon-chain lengths, namely, ethanol, propanol, butanol, heptanol, and decanol. The effect of alcohol inclusion and variation in the IP led to minimal brake-specific fuel consumption and maximal brake thermal efficiency for blended fuel containing 20% propanol, which was 17.39% lower and 8.70% higher than diesel, respectively. The same composition of the fuel blend offered the lowest smoke and CO2 emissions, which were 92.85 and 27.9% lesser than diesel; moreover, 7.36% lower NO x emission than diesel was achieved.
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