Combined effects of fuel injection pressure and injector nozzle holes on the performance of preheated palm oil methyl ester used in a diesel engine

被引:8
|
作者
Walle Mekonen, Menelik [1 ]
Sahoo, Niranjan [1 ]
机构
[1] Indian Inst Technol Guwahati, Gauhati, Assam, India
来源
BIOFUELS-UK | 2020年 / 11卷 / 01期
关键词
Diesel engine; palm oil methyl ester; preheating; fuel injection pressure; number of injector nozzle holes; OPENING PRESSURE; EMISSION CHARACTERISTICS; SPRAY CHARACTERISTICS; BIODIESEL; GEOMETRY; COMBUSTION; JATROPHA; STANDARDS;
D O I
10.1080/17597269.2018.1519759
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
This paper presents the impact of preheated palm oil methyl ester) (POME) properties and examines the consequences of varying fuel injection pressure (IP), fuel injection timing (IT) and injector nozzle hole number (IJNHN) for improving the combustion quality in a diesel engine, by evaluating the performance parameters, combustion characteristics and emissions. The fuel IPs changed from 188 to 224 bar (with an increment of 12 bar) at fuel ITs 19 degrees, 23 degrees and 27 degrees Before Top Dead Center (BTDC) with a variation of IJNHN (3-5) each 0.3 mm in diameter. The test results revealed that the kinematic viscosity and density of POME decreased slowly with an increase in fuel temperature. At 114 degrees C, the viscosity and density of POME decreased to close to that of diesel fuel. Preheating POME improved engine brake specific fuel consumption (BSFC), brake thermal efficiency (BTHE) and emissions of CO and Hydro Carbon (HC), with a slight increase of NOx. The results indicate that increased fuel IP of 212 bar and an advanced IT of 27 degrees BTDC with a four-hole IJNHN for preheated POME (114 degrees C) was the best combination for overall improvement in BSFC and BTHE with reduced emissions (of CO and HC) with respect to baseline diesel.
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页码:19 / 35
页数:17
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