Effects of biodiesel on changes in IC engine performances: A long-term experiment with farm tractors. (15th May 2021)

• Record Type: Journal Article
• Authors: Tomić, M.; Savin, L.; Simikić, M.; Kiss, F.; Kešelj, K.; Ivanišević, M.; Ponjičan, O.; Zoranović, M.; Sedlar, A.
• Is Part Of: Fuel. Volume 292(2021)
• Publication Date: 2021-05-15
• Subjects: IC Internal combustion (engine) -- ED Petroleum diesel characteristics in line with EN590:2010 standard without added biodiesel -- BD40 Mixture of ED and biodiesel in a ratio of 60:40% (v.v−1) -- BD100 Pure biodiesel -- SFC Specific fuel consumption -- SEC Specific energy consumption -- FIE Fuel injection system -- FFA Free fatty acids -- t1 Test at the beginning of the experiment -- t2 Test after 100 h of running -- t3 Test after 250 h of running -- t4 Test after 500 h of running -- t5 Test after 1000 h of running; Biodiesel -- Diesel -- Continued use -- Engine performance -- Emissions; Fuel -- Periodicals; Coal -- Periodicals; Coal; Fuel; Periodicals; 662.6
• DOI: 10.1016/j.fuel.2021.120300
• Languages: English
• ISSNs: 0016-2361

Abstract

Highlights: Continued use of biodiesel and petroleum diesel blend. The changes in engine performances and exhaust gas emissions were recorded over time. The engine characteristics were impaired over time. The cause was the formed deposit on injectors. Abstract: This study aimed to determine the effects of continued use of petroleum diesel and biodiesel fuel blend on the changes in engine performances and exhaust gas emissions of the IC engine. The experiments were conducted on a tractor engine using a blend of biodiesel and petroleum diesel in the ratio of 40:60% (v.v −1 ) (BD40). The tractor performed standard farming operations using BD40 fuel for 1000 h. The engine performances and exhaust gas emissions were evaluated at the beginning of the experiment and after 100, 250, 500, and 1000 h. Maximum engine power dropped by 6.16% after 1000 h with BD40 fuel, and specific fuel consumption and CO emission increased by 7.35 and 12.5% respectively. The CO2 emission was reduced by 6.26%. Worsened engine performance was probably a consequence of the deposit on the tip of injectors which was formed due to thermal oxidation of unsaturated fatty acids that amounted to over 90% in the used raw material for biodiesel production. Statistical analysis of the obtained data indicated statistically significant changes.