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Combustion Model of a Dual‐Fuel Diesel Engine
Author(s) -
Yao Chong,
Tyulepberdinova Gulnur,
Gu Shengyu
Publication year - 2021
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.202000553
Subject(s) - homogeneous charge compression ignition , combustion , ignition system , diesel engine , thermal conduction , mechanics , diesel fuel , thermodynamics , automotive engineering , internal combustion engine , autoignition temperature , materials science , nuclear engineering , engineering , combustion chamber , chemistry , physics , organic chemistry
A mathematical model is presented for the volumetric combustion of a homogeneous fuel mixture in compression‐ignition and forced‐ignition engines. With careful consideration of all combustion parameters, the profile of the burning rate has a two‐peak structure. A simple nonlinear heat conduction problem was solved to illustrate the importance of including the isobaric process and heat conduction as functions of the temperature. The study shows that, when the pre‐exponential parameter was chosen as a calibrated parameter, the ignition delay time significantly depends on the start of combustion and the pressure in the common rail, while the effect of the engine speed seems less noticeable. The results can be extended to quasi‐sized combustion models.