Results 121 to 130 of about 1,135 (238)

Effect of key structure parameters of passive pre-chamber on in-cylinder combustion processes and emissions within a gasoline engine

Case Studies in Thermal Engineering
Due to increasingly strict global emission regulations and energy conservation policies, gasoline engines are facing significant challenges. Achieving high efficiency and ultra-low emissions in gasoline engines has become a critical technical challenge ...
Yang Lv, Shangsi Feng, Jing Luo, Qiuyu Liu, Lan Li, Zhe Kang   +5 more
doaj   +1 more source

Mechanisms of Pre-Chamber Hot Turbulent Jet Ignition of Ultra-Lean Mixtures

, 2017
Stringent emission regulations require gas engine manufacturers to move towards ultra-lean operation to reduce the peak combustion temperature and thereby minimizing NOx formation.
Biswas, Sayan
core  

Comprehensive review of innovation in piston engine and low temperature combustion technologies

Transport
Global transport today is mainly powered by the Internal Combustion Engine (ICE) and throughout its century and a half of development it has become considerably more efficient and cleaner.
Roland Allmägi, Risto Ilves, Jüri Olt
doaj   +1 more source

CFD Analysis of the Influence of Some Intake Port Aerodynamic Modification into in-Cylinder Flow Processes and Flame Propagation in the Combustion Chamber of a Spark Ignition IC Engine

Energies
It has long been known that inlet port geometry plays a crucial role in regulating in-cylinder flow processes, significantly affecting combustion efficiency and engine emissions.
Zoran Masoničić, Radivoje Pešić, Aleksandar Davinić, Slobodan Savić, Ivan Lazović, Siniša Dragutinović   +5 more
doaj   +1 more source

Three-Dimensional Simulation of Turbulent Hot-Jet Ignition for Air-CH4-H2 Deflagration in a Confined Volume

, 2018
This work describes essential aspects of the ignition and deflagration process initiated by the injection of a hot transient gas jet into a narrowly confined volume containing air-CH4-H2 mixture. Driven by the pressure difference between a prechamber and
Paik, Kyong-Yup, Nalim, M. Razi, Khan, Md N., Feyz, Mohammad E., Tarraf, Ali   +4 more
core   +1 more source

Experimental Investigation on Knock Characteristics from Pre-Chamber Gas Engine Fueled by Hydrogen

Energies
Hydrogen-fueled engines require large values of the excess air ratio in order to achieve high thermal efficiency. A low value of this coefficient promotes knocking combustion.
Ireneusz Pielecha, Filip Szwajca, Kinga Skobiej   +2 more
doaj   +1 more source

Experimental and Numerical Investigations of Skim Milk Powder Stickiness and Deposition Mechanisms

, 2009
The particle gun method and Computational Fluid Dynamics (CFD) modelling was used to study stickiness and deposition mechanisms of skim milk powder in an impingement jet hitting a stainless steel plate.
Songxin Zhao, Zhao, SongXin
core  

Ignition in 40kw co-axial turbulent diffusion oxy-coal jet flames

, 2010
presentationOutline: 1) Introduction 2) Objectives 3) Experimental setup 4) Methodology to quantify flame stability 5) Results and discussion 6) Conclusions 7) Acknowledgements.
Zhang, Jingwei; Kelly, Kerry E.; Eddings, Eric G.; Wendt, Jost O. L.
core  

Effect of Air-Assisted Turbulent Jet Ignition (AAC-TJI) on Natural Gas Engine Performance

Turbulent Jet Ignition (TJI) involves the use of a pre-combustion chamber to ignite a lean mixture of fuel in the main combustion chamber using a fraction of the total fuel per cycle.
Siyamak Ziyaei (18045922)
core   +1 more source

Spark ignition of turbulent premixed and non-premixed opposed jet flames

, 2006
The probabilistic nature of ignition of premixed and non-premixecl turbulent opposed-jet flames has been examined and the flame structures following ignition have been visualized directly and with OH-PLIF.
He, YY, Balachandran, R, Mastorakos, E, Ahmed, SF, ,   +4 more
core