Comparison of the Effects of Animal and Vegetable Based Biodiesel in the Bioethanol-Diesel Blend on the Combustion and Emission Characteristics of a Common Rail Diesel Engine
Journal Title: International Journal of Automotive Engineering and Technologies - Year 2016, Vol 5, Issue 4
Abstract
The usage of animal biodiesel (AB) was derived from waste fleshing oil, and vegetable biodiesel (VB) was produced from safflower-canola oil mixture in the bioethanol-diesel fuel blend have been investigated to find out the effects of biodiesel content and type on the combustion and emission parameters of a multi cylinder common rail diesel engine. The test fuels were determined as pure fossil diesel fuel (DF), bioethanol-diesel blend with 15% of bioethanol (E15) by mass and three bioethanol-diesel-biodiesel blends prepared for AB and VB that were mixed with different ratios. Biodiesel ratios varied at %5, %10 and %20 by mass in the bioethanol-diesel-biodiesel blends, while bioethanol-diesel concentration was maintained constant. Engine tests were conducted at constant engine speed and four different engine loads. The results of this study showed that maximum cylinder gas pressures (Pmax) of the DF were 2.42 - 4.25 % higher than those of test blends at low and medium engine loads, while Pmax of the DF was measured maximum 1.58 % lower than those of biodiesel-bioethanol-diesel blends at high engine load. Brake specific fuel consumption (BSFC) of the DF was calculated 5.55 - 7.77 % lower than those of test blends. Oxides of nitrogen (NOx) emissions of the both types of biodiesel blends were measured higher, while smoke and total hydrocarbon (THC) emissions of these blends were measured lower when compared with DF.
Authors and Affiliations
Ali Türkcan*| Department of Automotive Engineering, Kocaeli University, 41380 Izmit, Turkey.
Keywords
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