Results 61 to 70 of about 656,343 (134)

CFD Simulation of Pre-Chamber Spark-Ignition Engines—A Perspective Review

Energies
The growing demand to reduce emissions of pollutants and CO2 from internal combustion engines has led to a critical need for the development of ultra-lean burn engines that can maintain combustion stability while mitigating the risk of knock.
Soo-Jin Jeong
doaj   +1 more source

Control Strategies and Intelligent Optimization for Ammonia–Hydrogen Dual-Fuel Engines: A Control-Oriented Review

Energies
Ammonia is increasingly regarded as a carbon-free energy carrier for hard-to-electrify power sectors, including marine propulsion, heavy-duty transport, and distributed generation. Its direct use in internal combustion engines, however, is constrained by
Jiacheng Zhou, Gang Wu, Yong Chen, Haoran Zong   +3 more
doaj   +1 more source

A Review on Liquid-Ammonia Injection and Combustion for Engine Applications

Engineering
This comprehensive review examines the application of liquid-ammonia injection and combustion in engine systems, highlighting the potential of liquid ammonia as a carbon-neutral fuel alternative.
Hao Wu, Fahad Almatrafi, Moez Ben Houidi, Tiegang Fang, William L. Roberts   +4 more
doaj   +1 more source

Investigation of high-order, high-resolution methods for axisymmetric turbulent jet usin ILEs [PDF]

, 2011
This Philosophiae Doctor thesis presents the motivation, objectives and reasoning behind the undertaken project. This research, study the capability of compressible Implicit Large Eddy Simulation (ILES) in predicting free shear layer flows, under ...
Baranda Inok, Antonio Filipe
core   +1 more source

Influence of In-Cylinder Turbulence Kinetic Energy on the Mixing Uniformity within Gaseous-Fuel Engines under Various Intake Pressure Conditions

Energies
To explore the potential for further enhancing the gas mixing uniformity of natural gas (NG) engines, this paper identifies turbulent kinetic energy (TKE), which has an essential impact on gas mixing, as the entry point of the research.
Tianbo Wang, Yu Wang, Lanchun Zhang, Yan Zheng, Ranran Liu, Chengmin Wang, Wu Gong   +6 more
doaj   +1 more source

A randomization and unrolling framework to improve deep neural networks modelling chemistry integration across multiple combustion regimes

Applications in Energy and Combustion Science
Solving finite-rate chemical kinetics through direct integration is computationally expensive and often becomes a performance bottleneck in high-fidelity combustion simulations.
Weitao Liu, Andreas Kronenburg, Thorsten Zirwes   +2 more
doaj   +1 more source

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

Experimental study of combustion and scalar mixing in swirling jet flows [PDF]

Turbulent mixing of passive scalar field and combustion of gaseous fuel were studied in the context of a non-premixed isothermal and reacting swirling jets discharged from a swirl-stabilised burner, as a function of swirl number.
Stetsyuk, V.
core   +1 more source

Effect of Equivalence Ratio on Combustion Characteristics under Propane-Air Flame Acceleration Conditions. [PDF]

ACS Omega
Yu Y, Gu L, Liu Z, Wang D, Wu G, Yang W, Zheng Y, Yu J, Han Y, Zhang J.   +9 more
europepmc   +1 more source

Structure of Turbulent Nonpremixed Syngas Jet Flames in a Heated Coflow at Elevated Pressure. [PDF]

ACS Omega
Albalawi AM, Hassan ZO, Roberts WL, Elbaz AM.   +3 more
europepmc   +1 more source