Effect of fuel injection pressure on the injection, combustion and performance characteristics of a DI diesel engine fueled with canola oil methyl esters-diesel fuel blends

被引:94
作者
Sayin, Cenk [1 ]
Gumus, Metin [1 ]
Canakci, Mustafa [2 ,3 ]
机构
[1] Marmara Univ, Dept Mech Engn, TR-34722 Istanbul, Turkey
[2] Kocaeli Univ, Dept Automot Engn, TR-41380 Izmit, Turkey
[3] Kocaeli Univ, Alternat Fuels R&D Ctr, TR-41275 Izmit, Turkey
关键词
Brassica napus; Canola oil methyl esters; Diesel engine; Injection pressure; Combustion; Performance; COMPRESSION-IGNITION ENGINE; RAPESEED OIL; PALM OIL; BIODIESEL; EMISSIONS; JATROPHA; METHANOL; ATOMIZATION;
D O I
10.1016/j.biombioe.2012.07.016
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
In this study, the influence of injection pressure on the injection, combustion and performance characteristics of a single cylinder, four stroke, direct injection, naturally aspirated diesel engine has been experimentally investigated when using canola oil methyl esters (COME) and its blends with diesel fuel. The tests were conducted for four different injection pressures (18, 20, 22 and 24 MPa) at constant engine speed and different loads. The experimental results showed that the fuels exhibit different injection, combustion and performance characteristics for different engine loads and injection pressure. Investigation on the injection characteristics of the fuels showed that using COME instead of diesel resulted in earlier injection timings. The maximum cylinder pressure, the maximum rate of pressure rise and the maximum heat release rate are slightly lower for COME and its blends. The brake specific fuel consumption and brake specific energy consumption for COME are higher than that for diesel fuel while brake thermal efficiency of COME is generally lower than that of diesel fuel. The increased injection pressure gave better results for brake specific fuel consumption and brake thermal efficiency compared to the original and decreased injection pressures. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:435 / 446
页数:12
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