Performance, emission and combustion analysis of a compression ignition engine using biofuel blends

Thermal Science

Ors Ilker¹  Kahraman Ali²  Ciniviz Murat³ 

[1] Aksaray University, Vocational School of Technical Sciences, Department of Motor Vehicles and Transportation Technology, Aksaray, Turkey;Necmettin Erbakan University, Faculty of Engineering and Architecture, Department of Energy Systems Engineering, Konya, Turkey;Selcuk University, Technology Faculty, Department of Mechanical Engineering, Konya, Turkey;

关键词: safflower oil;    bioethanol;    biodiesel;    combustion characteristics;    engine performance;    exhaust emissions;   

DOI  :  10.2298/TSCI161112307O

来源: DOAJ

【 摘 要 】

This study aimed to investigate the effects on performance, emission, and combustion characteristics of adding biodiesel and bioethanol to diesel fuel. Diesel fuel and blend fuels were tested in a water-cooled compression ignition engine with direct injection. Test results showed that brake specific fuel consumption and volumetric efficiency increased by about 30.6% and 3.7%, respectively, with the addition of bioethanol to binary blend fuels. The results of the blend fuel’s combustion analysis were similar to the diesel fuel’s results. Bioethanol increased maximal in-cylinder pressure compared to biodiesel and diesel fuel at both 1400 rpm and 2800 rpm. Emissions of CO increased by an amount of about 80% for fuels containing a high level of bioethanol when compared to CO emissions for diesel fuel. Using biodiesel, NO emissions increased by an average of 31.3%, HC emissions decreased by an average of 39.25%, and smoke opacity decreased by an average of 6.5% when compared with diesel fuel. In addition, when using bioethanol, NO emissions and smoke opacity decreased by 55% and 17% on average, respectively, and HC emissions increased by an average of 53% compared with diesel fuel.

【 授权许可】

Unknown