Combustion Simulation of a Dual Chamber Stratified Charge Spark Ignition Engine
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Published: 1979
Total Pages:
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Published: 1979
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DOWNLOAD EBOOKAuthor: Samuel Shangchi Pan
Publisher:
Published: 1979
Total Pages: 392
ISBN-13:
DOWNLOAD EBOOKAuthor: Samuel Shangchi Pan
Publisher:
Published: 1979
Total Pages: 388
ISBN-13:
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Published: 1979
Total Pages:
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DOWNLOAD EBOOKA combined experimental and theoretical investigation of the nature of the combustion processes in a dual chamber stratified charge spark ignition engine is described. This work concentrated on understanding the mixing process in the main chamber gases. A specially constructed single cylinder engine was used to both conduct experiments to study mixing effects and to obtain experimental data for the validation of the computer model which was constructed in the theoretical portion of the study. The test procedures are described. Studies were conducted on the effect of fuel injection timing on performance and emissions using the combination of orifice size and prechamber to main chamber flow rate ratio which gave the best overall compromise between emissions and performance. In general, fuel injection gave slightly higher oxides of nitrogen, but considerably lower hydrocarbon and carbon monoxide emissions than the carbureted form of the engine. Experiments with engine intake port redesign to promote swirl mixing indicated a substantial increase in the power output from the engine and, that an equivalent power levels, the nitric oxide emissions are approximately 30% lower with swirl in the main chamber than without swirl. The development of a computer simulation of the combustion process showed that a one-dimensional combustion model can be used to accurately predict trends in engine operation conditions and nitric oxide emissions even though the actual flame in the engine is not completely one-dimensional, and that a simple model for mixing of the main chamber and prechamber intake gases at the start of compression proved adequate to explain the effects of swirl, ignition timing, overall fuel air ratio, volumetric efficiency, and variations in prechamber air fuel ratio and fuel rate percentage on engine power and nitric oxide emissions. (LCL).
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Published: 1979
Total Pages: 18
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DOWNLOAD EBOOKAuthor: S. C. Sorenson
Publisher:
Published: 1979
Total Pages: 18
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DOWNLOAD EBOOKAuthor: P. A. Lakshminarayanan
Publisher: Springer Nature
Published:
Total Pages: 678
ISBN-13: 9819706297
DOWNLOAD EBOOKAuthor: V. Ganesan
Publisher: Universities Press
Published: 1996
Total Pages: 252
ISBN-13: 9788173710155
DOWNLOAD EBOOKThis book contains the theory and computer programs for the simulation of spark ignition (SI) engine processes. It starts with the fundamental concepts and goes on to the advanced level and can thus be used by undergraduates, postgraduates and Ph. D. scholars.
Author: Institution of Mechanical Engineers (Great Britain). Automobile Division
Publisher:
Published: 1977
Total Pages: 200
ISBN-13:
DOWNLOAD EBOOKAuthor: Kenneth William Grandys
Publisher:
Published: 1977
Total Pages: 152
ISBN-13:
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