A Thermodynamic Simulation Model for a Methanol Fueled Spark Ignition Engine

1983 ◽  
Author(s):  
H. B. Mathur ◽  
M. K. Gajendra Babu ◽  
K. Subba Reddi
Keyword(s):  
Simulation Model ◽  
Thermodynamic Simulation ◽  
Spark Ignition ◽  
Spark Ignition Engine

scholarly journals Simulation model for different bolted precombustion chamber (PCC) for spark ignition engine

2016 ◽  
Vol 90 ◽  
pp. 01045 ◽  
Author(s):  
Khairil Amri Muhamad Tajuddin ◽  
Musthafah Mohd Tahir ◽  
Mohd Azli Salim ◽  
Muhd Ridzuan Mansor ◽  
Mohd Zaid Akop ◽  
...  
Keyword(s):  
Simulation Model ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Precombustion Chamber

Thermodynamic simulation model for predicting the performance of spark ignition engines using biogas as fuel

2017 ◽  
Vol 149 ◽  
pp. 1096-1108 ◽  
Author(s):  
Mário M. Nunes de Faria ◽  
Juan P. Vargas Machuca Bueno ◽  
Sami M.M. Elmassalami Ayad ◽  
Carlos R. Pereira Belchior
Keyword(s):  
Simulation Model ◽  
Thermodynamic Simulation ◽  
Spark Ignition ◽  
Spark Ignition Engines

A Simulation Model of a Four-Stroke Spark Ignition Engine Fueled With Landfill Gases

2007 ◽  
Author(s):  
Guruprasath Narayanan ◽  
S. O. Bade Shrestha
Keyword(s):  
Simulation Model ◽  
Landfill Gas ◽  
Combustion Products ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Performance Parameters ◽  
Combustion Duration ◽  
Hydrogen Mixtures ◽  
Residual Gas ◽  
Gas Properties

A simulation model for establishment of performance parameters of a spark ignition engine fueled with landfill gas-methane and landfill gas-hydrogen mixtures is described. A two zone model was employed to estimate combustion duration, ignition lag, associated mass burning rates and performance parameters for various operating conditions in an internal combustion engine. The modeling consists of two main modules: a) a fuel-air and residual gas properties calculation, and b) equilibrium combustion product properties calculation with 13 species of equilibrium combustion products. The fuel-air and residual gas module calculates gas properties required in compression stroke and in an unburned zone of a combustion chamber. The equilibrium combustion products module calculates gas properties for the burned zone during combustion and expansion phases. In addition to engine parameters, combustion duration estimation methods were presented to accommodate the presence of high quantities of diluents such as carbon dioxide and nitrogen in methane to represent landfill gases, generally encountered in practice. Similarly, an effect of addition of hydrogen in landfill gas on performance of a spark ignition engine was also incorporated in the model. The pressure traces and other engine output parameters were modeled and compared with the experimental observations obtained in a variable compression single cylinder four-stroke spark ignition Co-operative fuel research (CFR) engine for different fuels that include methane, landfill gas and landfill gas–hydrogen mixtures and found satisfactory agreement. Matlab was used as the programming software in the model.

scholarly journals The Internal Residual Gas and Effective Release Energy of a Spark-Ignition Engine with Various Inlet Port–Bore Ratios and Full Load Condition

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3773
Author(s):  
Nguyen Xuan Khoa ◽  
Ocktaeck Lim
Keyword(s):  
Simulation Model ◽  
Combustion Chamber ◽  
Experimental Model ◽  
Load Condition ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Inlet Port ◽  
Maximum Value ◽  
Residual Gas ◽  
Research Show

This paper presents the effect of inlet port diameter–bore ratios (IPD/B) on the effective release energy and internal exhaust residual gas of a spark-ignition engine. To investigate the exhaust residual gas in the combustion chamber, a simulation model is setup based on AVL-boost software, and to validate the simulation model an experimental model is also setup. The results of the research show that: the IPD/B ratios have a large effect on the residual gas and effective release energy. When the IPD/B ratio increases from 0.3–0.5, the residual gas increases from 0.11% to 0.14%, and the effective release energy increases from 0.33 KJ to a maximum value of 0.45 KJ, and after that decreases. The engine shows the maximum effective release energy at IPD/B ratio is 0.4. The emission of HC and CO is decreased, but the NOx is increased until a maximum value after that decreased.

A Simulation Model of a Four-Stroke Spark Ignition Engine Fueled With Landfill Gases and Hydrogen Mixtures

2009 ◽  
Vol 131 (3) ◽  
Author(s):  
Guruprasath Narayanan ◽  
S. O. Bade Shrestha
Keyword(s):  
Simulation Model ◽  
Landfill Gas ◽  
Combustion Products ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Performance Parameters ◽  
Combustion Duration ◽  
Hydrogen Mixtures ◽  
Residual Gas ◽  
Gas Properties

A simulation model for establishment of performance parameters of a spark ignition engine fueled with landfill gas, methane, and landfill gas-hydrogen mixtures is described. A two zone model was employed to estimate combustion duration, ignition lag, associated mass burning rates, and performance parameters for various operating conditions in an internal combustion engine. The modeling consists of two main modules: (a) a fuel-air and residual gas properties calculation, and (b) equilibrium combustion product properties calculation with 13 species of equilibrium combustion products. The fuel-air and residual gas module calculates gas properties required in compression stroke and the unburned zone of a combustion chamber. The equilibrium combustion products module calculates gas properties for the burned zone during combustion and expansion phases. In addition to engine parameters, combustion duration estimation methods were presented to accommodate the presence of high quantities of diluents such as carbon dioxide and nitrogen in methane to represent landfill gases, generally encountered in practice. Similarly, an effect of the addition of hydrogen in landfill gas on performance of a spark ignition engine was also incorporated in the model. The pressure traces and engine power output parameters were modeled and compared with the experimental observations obtained in a variable compression single cylinder four-stroke spark ignition co-operative fuel research engine for different fuels that include methane, landfill gas, and landfill gas-hydrogen mixtures and found satisfactory agreement. MATLAB was used as the programming software in the model.

scholarly journals Optimization of Fuel Injection Control System of Two-Stroke Aeroengine of UAV

Complexity ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Yixuan Wang ◽  
Yan Shi ◽  
Maolin Cai ◽  
Weiqing Xu ◽  
Jian Zhang ◽  
...  
Keyword(s):  
Power Efficiency ◽  
Consumption Rate ◽  
Fuel Injection ◽  
Thermodynamic Simulation ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Injection System ◽  
Model Parameters ◽  
Fuel Injector ◽  
Oil Consumption

Power efficiency of two-stroke spark-ignition engine is generally low because improper amount of fuel injection leads to a lot of unburned fuel loss during the engine working process. However, parameters of the fuel injection system are hard to confirm by aviation experiments due to expensive test costs. This paper proposes a method of calibrating injection parameters of two-stroke spark-ignition engine based on thermodynamic simulation and parameter optimum algorithm. Firstly, the one-dimensional thermodynamic model is built according to the internal structure and thermodynamic process of the engine; then, the model parameters are corrected according to the operating principle of the injector; after experimental verification of the model, considering both the engine power sufficiency and fuel economy, Analytic Hierarchy Process method is applied to look for the optimal injection amount and fuel injection advance angle at different engine working speeds; finally, an aeroengine experiment station with an electronic fuel injector system is built. Through simulation and experiment studies, it can be seen that when the engine speed changes from 3000 to 3500 RPM, the oil consumption rate of the optimal results is higher than that of the previous ones; when the aeroengine speed is higher than 4000 RPM, the oil consumption rate results of the optimal method are 10% to 27% higher than the original results. This paper can be a reference in the optimization of UAV aircraft engine.

Performance and Emissions of Natural Gas and Hydrogen/Natural Gas Blended Fuels in Spark Ignition Engine

2005 ◽  
Author(s):  
G. Anand ◽  
M. R. Ravi ◽  
J. P. Subrahmanyam
Keyword(s):  
Natural Gas ◽  
Combustion Engine ◽  
Thermodynamic Simulation ◽  
Spark Ignition ◽  
Operating Conditions ◽  
Spark Ignition Engine ◽  
Si Engine ◽  
Nitrogen Emissions ◽  
Combustion Duration ◽  
Blended Fuel

The basic intent of the present work is to evaluate the potential of using alternative gaseous fuels like compressed natural gas (CNG) and H2/CNG as a spark ignition (SI) engine (lean burn engines) fuel. Computer modeling of internal combustion engine is useful in understanding the complex processes that occur in the combustion chamber. This research deals with quasi-dimensional, two-zone thermodynamic simulation of four-stroke SI engine fueled with CNG and H2/CNG. The fraction of hydrogen in the H2/CNG blend, for simulation was varied from 0–60% by volume. The developed computer model has been used for the prediction of the combustion and emission characteristics of H2/CNG blended fuel in SI engines, which includes the power, thermal efficiency, cylinder pressure-crank angle history, exhaust emissions (NOx and CO), fuel consumption, combustion duration, ignition delay, etc. Predicted results indicate that the presence of hydrogen in H2/CNG blend can improve combustion duration as it has a higher flame speed. There are increases in oxides of nitrogen emissions, but decrease in carbon monoxide and hydrocarbon emissions, when comparing H2/CNG blended fuel to neat CNG. The validity of the model has been carried out by comparing the computed results with experimental data obtained under same engine setup and operating conditions. The results obtained from the theoretical model when compared with those from experimental ones show a good agreement. Also, the effects of the many operating parameters such as equivalence ratio, engine speed, and spark timing have been studied.

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