Open AccessThe effect of first generation biofuel on emission characteristics under variable conditions of engine speeds and loads in diesel engine
Author(s) -
Mohammed A. Fayad,
Miqdam T. Chaichan,
Hayder A. Dhahad
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1973/1/012041
Subject(s) - combustion , diesel fuel , environmental science , biofuel , particulates , soot , diesel engine , biodiesel , automotive engineering , exhaust gas recirculation , waste management , exhaust gas , chemistry , engineering , biochemistry , organic chemistry , catalysis
Iraqi sunflower was used in the current study and blended with diesel fuel into different ratios. The results indicated that lowest level of gaseous emissions (CO, HC, and CO 2 ) and PM produced from B100 compared with other fuels tests. Furthermore, the CO and unburnt HC decreased with high conditions of engine loads and speeds. The high concentration of NO X emissions was found from the combustion of B100, B50, and B20 compared with diesel fuel. The emissions of NO X and exhaust gas temperature improved from increasing the operating conditions of engine loads and speeds. The effect of biodiesel blends on the gaseous emissions and particulate matter (PM) was investigated under variable engine operating conditions of loads and speeds. The best reduction was achieved with medium conditions of engine loads and speeds compared with low and high loads and speeds for all fuels tests. The higher oxidation rate of soot particles inside combustion cycle from the burning of B100, B50, and B20 decreased the total concentration of PM.