A Study of Mass Burning Rate of a Small Industrial Spark Ignition Engine

1986 ◽  
Author(s):  
K. C. Tsao ◽  
C. L. Wang
Keyword(s):  
Burning Rate ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Mass Burning Rate

Turbulent flame and mass burning rate in a spark ignition engine

Fuel ◽  
2013 ◽  
Vol 107 ◽  
pp. 202-208 ◽  
Author(s):  
Kexin Liu ◽  
A.A. Burluka ◽  
C.G.W. Sheppard
Keyword(s):  
Burning Rate ◽  
Turbulent Flame ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Mass Burning Rate

Combustion and the thermodynamic performance of spark ignition engines

2000 ◽  
Vol 214 (1) ◽  
pp. 257-268 ◽  
Author(s):  
D Bradley ◽  
M Lawes ◽  
C. G. W. Sheppard
Keyword(s):  
Burning Rate ◽  
Burning Velocity ◽  
Direct Injection ◽  
Turbulent Flame ◽  
Evaporative Cooling ◽  
Gaseous Mixture ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Spark Ignition Engines ◽  
Energy Chain

Some overall considerations for the optimization of the energy chain for the spark ignition engine are briefly discussed and figures given for the relative inhaled energies with different fuels. There follows a description of the nature of turbulent flame propagation in engines, showing the computed characteristics of the burning rate for stoichiometric and lean mixtures at different engine speeds. These reveal the factors influencing partial quenching and misfire. Flame instabilities are shown theoretically to become more important with increasing pressure. The associated flame wrinkling and cellularity increase the burning rate of both laminar and turbulent gaseous flames. Fundamental aspects of the present trend towards the direct injection of gasoline are discussed and the unique instabilities in aerosol combustion are shown to increase the burning velocity above that of the corresponding gaseous mixture. The degree to which evaporative cooling of droplets can enhance the volumetric efficiency is discussed. The onset of autoignition in an engine is calculated with recent shock tube data, which are also used to show that evaporative cooling can increase the knock resistance by about four octane numbers.

Investigation of Multistage Combustion Inside a Heavy-Duty Natural-Gas Spark-Ignition Engine Using Three-Dimensional Computational Fluid Dynamics Simulations and the Wiebe-Function Combustion Model

2020 ◽  
Vol 142 (10) ◽  
Author(s):  
Jinlong Liu ◽  
Cosmin E. Dumitrescu
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Natural Gas ◽  
Burning Rate ◽  
Three Dimensional ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Heavy Duty ◽  
Piston Speed ◽  
Wiebe Function

Abstract The conversion of existing heavy-duty diesel engines to lean natural-gas (NG) spark ignition can be achieved by replacing the diesel injector with a spark plug and fumigating the NG into the intake manifold. While the original fast-burn diesel chamber will offset the lower NG flame speed, it will result in a two-stage combustion process (a stage inside and another outside the bowl). However, experimental data at more advanced spark timing, equivalence ratio of 0.8, and mean piston speed of 6.5 m/s suggested an additional combustion stage (i.e., three combustion stages). A three-dimensional (3D) computational fluid dynamics (CFD) simulation and a zero-dimensional triple Wiebe-function model were used to better understand the phenomena. While 78% fuel burned inside the bowl, burning rate reduced significantly when the flame approached the squish entrance and the bowl bottom. Moreover, the triple Wiebe-function indicated that the burn inside the squish was also divided into two separate combustion stages, due to the particularities of in-cylinder flow before and after top dead center. The first stage was fast and took place inside the compression stroke. The second took place in the expansion stroke and produced a short-lived increase in the burning rate, probably due to the increasing squish height during the expansion stroke and the increased combustion-induced turbulence, hence the third heat-release peak. Overall, these findings support the need for further investigations of combustion characteristics in such converted engines, to benefit their efficiency and emissions.

EFFECT OF AIR-FUEL RATIO ON SYNGAS COMBUSTION IN AN OPTICALLY ACCESSIBLE SPARK IGNITION ENGINE

2017 ◽  
Author(s):  
santiago daniel martinez boggio ◽  
Pedro Lacava ◽  
Maycon Silva ◽  
SIMONA MEROLA ◽  
Adrian Irimescu ◽  
...  
Keyword(s):  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Fuel Ratio ◽  
Syngas Combustion

EXPERIMENTAL ANALYSIS OF THE INFLUENCE OF LUBRICATING OIL AND FUEL ON THE VIBRATION LEVEL OF CRANKSHAFT AXIS SPARK IGNITION ENGINE

2019 ◽  
Author(s):  
Claudio Santana ◽  
Jose Eduardo Mautone Barros ◽  
Juan Carlos Horta Gutiérrez ◽  
Helder Alves de Almeida Junior ◽  
jorgimara braga
Keyword(s):  
Experimental Analysis ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Lubricating Oil ◽  
Vibration Level

EMISSIONS INVESTIGATION OF SYNTHETIC BIOGAS IN A SPARK IGNITION ENGINE

2019 ◽  
Author(s):  
Lucas Ribeiro da Costa ◽  
Pedro Lima de Aguiar ◽  
José Welbson Carneiro de Araújo ◽  
William Barcellos ◽  
Francisco Nivaldo Aguiar Freire ◽  
...  
Keyword(s):  
Spark Ignition ◽  
Spark Ignition Engine
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