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George A. Lavoie
Researcher at University of Michigan
Publications - 43
Citations - 1910
George A. Lavoie is an academic researcher from University of Michigan. The author has contributed to research in topics: Combustion & Ignition system. The author has an hindex of 19, co-authored 43 publications receiving 1739 citations. Previous affiliations of George A. Lavoie include Massachusetts Institute of Technology & General Motors.
Papers
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Journal ArticleDOI
Experimental and Theoretical Study of Nitric Oxide Formation in Internal Combustion Engines
TL;DR: In this paper, a thermodynamic model which predicts the properties of the burnt and unburnt gases during the combustion process is developed, and rate equations for nitric oxide concentrations as a function of time in the post-flame gases are derived.
Proceedings ArticleDOI
Modeling HCCI Combustion With High Levels of Residual Gas Fraction - A Comparison of Two VVA Strategies
Journal ArticleDOI
A multi-mode combustion diagram for spark assisted compression ignition
TL;DR: In this article, a multi-mode combustion diagram is proposed to delineate the regimes of spark ignition, flame propagation, compression ignition, knocking combustion and spark-assisted combustion, in terms of unburned and burned gas temperatures near top dead center.
Journal ArticleDOI
The effects of spark timing, unburned gas temperature, and negative valve overlap on the rates of stoichiometric spark assisted compression ignition combustion
Laura Manofsky Olesky,Jason Martz,George A. Lavoie,Jiri Vavra,Dennis N. Assanis,Aristotelis Babajimopoulos +5 more
TL;DR: In this article, the effect of SACI on peak heat release rates was investigated in an HCCI engine equipped with fully-flexible valve actuation, and it was found that the effects were consistent with changes in estimated laminar flame speed near the time of spark and a relatively constant temperature at the onset of end-gas auto-ignition.
Journal ArticleDOI
Thermodynamic sweet spot for high-efficiency, dilute, boosted gasoline engines:
George A. Lavoie,Elliott Ortiz-Soto,Aristotelis Babajimopoulos,Jason Martz,Dennis N. Assanis +4 more
TL;DR: The authors analytically explores the fundamental thermodynamics of operation in these regimes under realistic burn duration, heat loss, boosting, and friction constraints, identifying the benefits of this approach and the path to achieving optimum engine and vehicle-level fuel economy.