Real fuel modeling for gasoline compression ignition engine
Document Type
Article
Publication Date
4-14-2020
Department
Department of Mechanical Engineering-Engineering Mechanics
Abstract
Increasing regulatory demand for efficiency has led to development of novel combustion modes such as HCCI, GCI and RCCI for gasoline light duty engines. In order to realize HCCI as a compression ignition combustion mode system, in-cylinder compression temperatures must be elevated to reach the autoignition point of the premixed fuel/air mixture. This should be co-optimized with appropriate fuel formulations that can autoignite at such temperatures. CFD combustion modeling is used to model the auto ignition of gasoline fuel under compression ignition conditions. Using the fully detailed fuel mechanism consisting of thousands of components in the CFD simulations is computationally expensive. To overcome this challenge, the real fuel is represented by few major components of create a surrogate fuel mechanism. In this study, 9 variations of gasoline fuel sets were chosen as candidates to run in HCCI combustion mode. A study detailing the development of the gasoline real fuel model was performed and various surrogates for gasoline fuel were investigated. The gasoline real fuel model will be used in subsequent CFD modelling activities for the development of an advanced mixed mode combustion system as part of the Department of Energy funded project DE-EE0008478.
Publication Title
SAE International
Recommended Citation
Wagh, M.,
Joo, N. R.,
Zoldak, P.,
Won, H.,
Ra, Y.,
&
Shi, Y.
(2020).
Real fuel modeling for gasoline compression ignition engine.
SAE International.
http://doi.org/10.4271/2020-01-0784
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/2809