Performance simulation of a reactivity controlled compression ignition (RCCI) engine fueled with waste cooking oil biodiesel (WCO) with a focus on consumption trends of fuel constituents

Authors

1 Ph.D. Student, Mech. Eng., Babol Noshirvani university of technology, Babol, Iran

2 Prof., Mech. Eng., Babol Noshirvani university of technology, Babol, Iran

3 3 Assoc. Prof., Mech. Eng., Babol Noshirvani university of technology, Babol, Iran

4 Postdoctoral Research Fellowsheep, CORIA Lab, INSA Rouen Normandie

10.22044/jsfm.2024.13558.3786

Abstract

Using the strategy of low-temperature combustion engines is one of the effective solutions to reduce nitrogen oxides; In the present study, a single-zone code was developed considering the detailed chemical kinetic mechanism to investigate the performance of an RCCI engine with WCO-gasoline diesel/biodiesel hybrid fuel. The study of the consumption of chemical species showed that unsaturated fatty acids are consumed more quickly in the combustion process. Diesel consumption speed is also lower than WCO in all loads. According to the results, with an increase in load from 20 to 80%, the moment of starting hot combustion is closer to the moment of starting fuel injection by about 2.5 degrees. Also, with the increase of fuel mass, due to the high proportion of LR fuel, the period of formation of cold ignition becomes shorter. In all cases, the beginning of the production of formaldehyde species is the same time as the beginning of the low temperature heat release and the beginning of the production of the hydroxyl species is the same time as the beginning of the high temperature heat release process.

Keywords

Main Subjects


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