Open AccessStudy on Combustion Processes of a Premixed Charge Compression Ignition (PCCI) Engine Fueled with DME/Diesel
Author(s) -
Yuhong Zhao,
E Weibo,
Tianlin Niu,
Jiangjiang He
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 - 10.1088/1742-6596/1732/1/012154
Subject(s) - homogeneous charge compression ignition , combustion , carbureted compression ignition model engine , ignition system , diesel fuel , compression ratio , diesel engine , automotive engineering , materials science , mixing (physics) , ignition timing , dimethyl ether , chemistry , thermodynamics , combustion chamber , engineering , methanol , physics , organic chemistry , quantum mechanics
A dimethyl ether (DME) pre-mixing system was installed on a 2105 diesel engine for realizing pre-mixed charge compression ignition combustion mode. Combustion processes of a PCCI engine fueled with DME/diesel under various DME pre-mixing ratios were investigated in this paper. The results showed that the heat release process showed three stages with port induction of DME. As the DME pre-mixing ratio (PR) increased, the peak value of cylinder temperature and pressure raised and the corresponding crank angles advanced. The start of combustion (SOC) moved forward obviously and the duration of combustion extended; the peak value of the pressure rise rate reduced first and then raised. The results in this paper provided a reference for the combustion process optimization of DME/diesel PCCI engine.