Effects of natural gas composition on performance and regulated, greenhouse gas and particulate emissions in spark-ignition engines

2017 ◽  
Vol 143 ◽  
pp. 338-347 ◽  
Author(s):  
R. Amirante ◽  
E. Distaso ◽  
S. Di Iorio ◽  
P. Sementa ◽  
P. Tamburrano ◽  
...  
Keyword(s):  
Natural Gas ◽  
Greenhouse Gas ◽  
Spark Ignition ◽  
Particulate Emissions ◽  
Spark Ignition Engines ◽  
Gas Composition

Laminar flame speed correlations for methane, ethane, propane and their mixtures, and natural gas and gasoline for spark-ignition engine simulations

2017 ◽  
Vol 18 (9) ◽  
pp. 951-970 ◽  
Author(s):  
Riccardo Amirante ◽  
Elia Distaso ◽  
Paolo Tamburrano ◽  
Rolf D Reitz
Keyword(s):  
Natural Gas ◽  
Laminar Flame ◽  
Spark Ignition ◽  
Flame Speed ◽  
Operating Conditions ◽  
Spark Ignition Engine ◽  
Computational Time ◽  
Laminar Flame Speed ◽  
Spark Ignition Engines ◽  
Empirical Correlations

The laminar flame speed plays an important role in spark-ignition engines, as well as in many other combustion applications, such as in designing burners and predicting explosions. For this reason, it has been object of extensive research. Analytical correlations that allow it to be calculated have been developed and are used in engine simulations. They are usually preferred to detailed chemical kinetic models for saving computational time. Therefore, an accurate as possible formulation for such expressions is needed for successful simulations. However, many previous empirical correlations have been based on a limited set of experimental measurements, which have been often carried out over a limited range of operating conditions. Thus, it can result in low accuracy and usability. In this study, measurements of laminar flame speeds obtained by several workers are collected, compared and critically analyzed with the aim to develop more accurate empirical correlations for laminar flame speeds as a function of equivalence ratio and unburned mixture temperature and pressure over a wide range of operating conditions, namely [Formula: see text], [Formula: see text] and [Formula: see text]. The purpose is to provide simple and workable expressions for modeling the laminar flame speed of practical fuels used in spark-ignition engines. Pure compounds, such as methane and propane and binary mixtures of methane/ethane and methane/propane, as well as more complex fuels including natural gas and gasoline, are considered. A comparison with available empirical correlations in the literature is also provided.

Towards an Innovative Combination of Natural Gas and Liquid Fuel Injection in Spark Ignition Engines

2010 ◽  
Vol 3 (2) ◽  
pp. 196-209 ◽  
Author(s):  
Vivien Delpech ◽  
Jerome Obiols ◽  
Dominique Soleri ◽  
Laurent Mispreuve ◽  
Eric Magere ◽  
...  
Keyword(s):  
Natural Gas ◽  
Liquid Fuel ◽  
Fuel Injection ◽  
Spark Ignition ◽  
Spark Ignition Engines

Effects of lubricant oil on particulate emissions from port-fuel and direct-injection spark-ignition engines

2017 ◽  
Vol 18 (5-6) ◽  
pp. 606-620 ◽  
Author(s):  
Riccardo Amirante ◽  
Elia Distaso ◽  
Michele Napolitano ◽  
Paolo Tamburrano ◽  
Silvana Di Iorio ◽  
...  
Keyword(s):  
Direct Injection ◽  
Spark Ignition ◽  
Particulate Emissions ◽  
Spark Ignition Engines ◽  
Lubricant Oil ◽  
Direct Injection Spark Ignition

Methods of Increasing the BMEP (Power Output) for Natural Gas Spark Ignition Engines

1998 ◽  
Author(s):  
Fu-Rong Zhang ◽  
Kazuhisa Okamoto ◽  
Satoshi Morimoto ◽  
Fujio Shoji
Keyword(s):  
Natural Gas ◽  
Power Output ◽  
Spark Ignition ◽  
Spark Ignition Engines

Octane-on-Demand as an Enabler for Highly Efficient Spark Ignition Engines and Greenhouse Gas Emissions Improvement

2015 ◽  
Author(s):  
Junseok Chang ◽  
Yoann Viollet ◽  
Abdullah Alzubail ◽  
Amir Faizal Naidu Abdul-Manan ◽  
Abdullah Al Arfaj
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Spark Ignition ◽  
Spark Ignition Engines ◽  
Gas Emissions ◽  
On Demand ◽  
Highly Efficient

Effect of relative humidity on water injection technique in downsized spark ignition engines

2020 ◽  
pp. 146808742094085
Author(s):  
Jayesh Khatri ◽  
Nikhil Sharma ◽  
Petter Dahlander ◽  
Lucien Koopmans
Keyword(s):  
Relative Humidity ◽  
Water Injection ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Injection Technique ◽  
Injection Timing ◽  
Particulate Emissions ◽  
Spark Ignition Engines ◽  
General Applicability ◽  
Major Barrier

Combustion knock is a major barrier to achieving high thermal efficiency in spark ignition engines. Water injection was recently identified as a potential way of overcoming this barrier. To evaluate its general applicability, experiments were performed on a downsized three-cylinder spark ignition engine, varying the humidity of the intake air, the water injection timing, and the engine speed. The minimum quantity of injected water required to maintain a given load (and thus level of engine performance) was determined under each set of tested conditions. The knock-suppressing effects of water injection were found to be related to changes in the fuel–air mixture’s specific heat ratio (kappa) rather than evaporative cooling, and to therefore depend on the total quantity of water in the cylinder rather than the relative humidity per se. The total quantity of water in the cylinder was also shown to be a key determinant of advancement in combustion phasing and particulate emissions under various conditions.

Exhaust Particulate Emissions from Two Port Fuel Injected Spark Ignition Engines

1999 ◽  
Author(s):  
B. R. Graskow ◽  
D. B. Kittelson ◽  
M. R. Ahmadi ◽  
J. E. Morris
Keyword(s):  
Spark Ignition ◽  
Particulate Emissions ◽  
Spark Ignition Engines ◽  
Exhaust Particulate

scholarly journals Regulated, greenhouse gas, and particulate emissions from lean-burn and stoichiometric natural gas heavy-duty vehicles on different fuel compositions

Fuel ◽  
2016 ◽  
Vol 175 ◽  
pp. 146-156 ◽  
Author(s):  
Georgios Karavalakis ◽  
Maryam Hajbabaei ◽  
Yu Jiang ◽  
Jiacheng Yang ◽  
Kent C. Johnson ◽  
...  
Keyword(s):  
Natural Gas ◽  
Greenhouse Gas ◽  
Particulate Emissions ◽  
Heavy Duty ◽  
Lean Burn ◽  
Heavy Duty Vehicles
Sign in / Sign up

Export Citation Format

Share Document