Proceedings ArticleDOI
Heat Release Analysis of Engine Pressure Data
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TLDR
In this article, a heat release model using a one zone description of the cylinder contents with thermodynamic properties represented by a linear approximation is presented. But the model does not consider the effects of heat transfer, crevice flows and fuel injection.Abstract:
In analyzing the processes inside the cylinder of an internal combustion engine, the principal diagnostic at the experimenter's disposal is a measured time history of the cylinder pressure. This paper develops, tests, and applies a heat release analysis procedure that maintains simplicity while including the effects of heat transfer, crevice flows and fuel injection. The heat release model uses a one zone description of the cylinder contents with thermodynamic properties represented by a linear approximation. Applications of the analysis to a single-cylinder spark-ignition engine, a special square cross-section visualization spark-ignition engine, and a direct-injection stratified charge engine are presented.read more
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Proceedings ArticleDOI
New Heat Transfer Correlation for an HCCI Engine Derived from Measurements of Instantaneous Surface Heat Flux
Junseok Chang,Orgun A. Guralp,Zoran Filipi,Dennis N. Assanis,Tang-Wei Kuo,Paul M. Najt,Rod Rask +6 more
TL;DR: In this article, an experimental study has been carried out to provide qualitative and quantitative insight into gas to wall heat transfer in a gasoline fueled homogeneous charge compression Ignition (HCCI) engine.
Proceedings ArticleDOI
The Calculation of Heat Release Energy from Engine Cylinder Pressure Data
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Combustion characteristics of higher-alcohol/gasoline blends
M Gautam,D W Martin +1 more
TL;DR: In this paper, an experimental investigation was conducted to determine the emissions characteristics of higher alcohols and gasoline (UTG96) blends, while lower alcohols (methanol and ethanol) have been...
Journal ArticleDOI
Estimating Heat-Release and Mass-of-Mixture Burned from Spark-Ignition Engine Pressure Data
Kwang Min Chun,John B. Heywood +1 more
TL;DR: In this paper, it is shown that the fraction of the fuel's chemical energy which has been released and the amount of fuel-air mixture burned, within the engine's cylinder, can be accurately estimated from a one-zone analysis if appropriate values for the "average ratio of specific heats" of the contents are used.
Proceedings ArticleDOI
Calculation of Heat Release in Direct Injection Diesel Engines
References
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Proceedings ArticleDOI
Flow in the piston-cylinder-ring crevices of a spark-ignition engine: effect on hydrocarbon emissions, efficiency and power
M. Namazian,John B. Heywood +1 more
TL;DR: In this paper, the zone piston-cylindre-segments d'un moteur a allumage par etincelle, influence on les emissions d'hydrocarbures, le rendement et la puissance
FORTRAN 4 computer program for calculation of thermodynamic and transport properties of complex chemical systems
R. A. Svehla,B. J. Mcbride +1 more
TL;DR: In this paper, a FORTRAN IV computer program for the calculation of the thermodynamic and transport properties of complex mixtures is described, which has the capability of performing calculations such as: chemical equilibrium for assigned thermodynamic states, theoretical rocket performance for both equilibrium and frozen compositions during expansion, incident and reflected shock properties, and (4) Chapman-Jouguet detonation properties.
Journal ArticleDOI
Flame photographs in a spark-ignition engine☆
TL;DR: A set of schlieren photographs illustrating the various stages of combustion in a spark-ignition engine is presented in this paper, where two of the walls are quartz windows to permit full optical access.
Proceedings ArticleDOI
Schlieren Visualization of the Flow and Density Fields in the Cylinder of a Spark-Ignition Engine
Journal ArticleDOI
Rate of Heat Release in Diesel Engines and Its Correlation with Fuel Injection Data
N. D. Whitehouse,R. Way +1 more
TL;DR: In this article, basic heat release data have been obtained by analysis of cylinder pressure diagrams from a variety of engines, two-stroke and four-stroke, small (3·4in) to medium size (12in) over rang...