Results 51 to 60 of about 1,515 (209)

Ignition by Hot Transient Jets in Confined Mixtures of Gaseous Fuels and Air

Journal of Combustion, 2016
Ignition of a combustible mixture by a transient jet of hot reactive gas is important for safety of mines, prechamber ignition in IC engines, detonation initiation, and novel constant-volume combustors.
Abdullah Karimi, M. Razi Nalim
doaj   +1 more source

Current Trends and Future Perspective for Cold Spray Metal‐Ceramic Composites

Advanced Engineering Materials, Volume 27, Issue 10, May 2025.
The use of cold spray (CS) technology for creating cermet deposits, combining ceramic and metallic components, is advancing rapidly. Cermets offer excellent temperature handling and erosion resistance for diverse applications. This review outlines the current state of the art, focusing on the deposition dynamics and strategies to optimize the ...
Romario A. Wicaksono, Amir Ardeshiri Lordejani, Sara Bagherifard   +2 more
wiley   +1 more source

Lean combustion and emission performance of a gasoline direct injection engine with active pre-chamber

Advances in Mechanical Engineering, 2022
Pre-chamber jet ignition technology can effectively improve flame propagation speed and in-cylinder combustion rate, so it is conducive to the improvement of thermal efficiency and fuel economy.
Li Zhang, Zhaoming Huang, Tao Wang, Niu Zhao, Haiyan Cheng, Weiguo Chen   +5 more
doaj   +1 more source

Formation of High‐Molecular Hydrocarbons by CO‐Based Fischer‐Tropsch Synthesis Using Na‐Promoted Fe Catalysts

ChemCatChem, Volume 17, Issue 7, April 4, 2025.
Na‐promoted Fe catalysts are investigated to produce high‐molecular hydrocarbons using the CO‐based Fischer–Tropsch synthesis. Highest hydrocarbon formation rates occur in the inlet part of the catalyst due to the substantial presence of Fe carbides. The Fe carbides react with the formed water to produce FT‐inactive Fe3O4 along the reactor.
Christian Schmidt, Hendrik Wollmerstädt, Sven Kureti   +2 more
wiley   +1 more source

The DCU laser ion source [PDF]

, 2010
Laser ion sources are used to generate and deliver highly charged ions of various masses and energies. We present details on the design and basic parameters of the DCU laser ion source (LIS).
Boody F. P., E. T. Kennedy, J. T. Costello, P. Yeates, Peacock N. J.   +4 more
core   +1 more source

Analysis of Excited Species Formation across the Flame of Various Ammonia‐Hydrogen Fired Combustor Geometries

Energy Technology, Volume 13, Issue 4, April 2025.
Ammonia's combustion still presents challenges, including the formation of NOx emissions. Therefore, knowing the onset of radicals across the flame can help in mitigating unwanted pollutants while maximizing flame control. This document addresses the change of position of various excited radicals, method that through relatively simple systems can ...
Marco Osvaldo Vigueras‐Zuniga, Maria Elena Tejeda del Cueto, Jordan Davies, Syed Mashruk, Agustin Valera‐Medina   +4 more
wiley   +1 more source

Aspects of Ammonia as Green Fuel for Propulsion Systems of Inland Water Vessels

Energy Technology, Volume 13, Issue 2, February 2025.
Within the CAMPFIRE project, an ammonia‐powered propulsion concept is being developed for use in inland water vessels. The core of the system is an ammonia‐fueled high‐speed engine that drives a generator. A cracker splits some of the ammonia into hydrogen and nitrogen to ensure better ignition and efficient combustion.
Annalena Braun, Niklas Gierenz, Samuel Braun, Heiko Kubach, Sören Bernhardt, Sascha Prehn, Moritz Müller, Lena Engelmeier, Lukas Fehlemann, Michael Steffen, Torsten Baufeld, Günther Neuhaus, Karsten Müller, Hinrich Mohr   +13 more
wiley   +1 more source

The mechanism and effect factors of the combustion cycle‐to‐cycle variations in the spark ignition engine

Energy Science &Engineering, Volume 12, Issue 10, Page 4773-4787, October 2024.
The authors comprehensively reviewed the fundamental reasons and mechanism of cycle‐to‐cycle variations (CCVs) of a spark ignition (SI) engine. In addition, the characteristic parameters and characterization methods of the CCV, the laws and influencing factors of the CCV, and the numerical simulation methods of the CCV were introduced in detail to ...
Xiongbo Duan, Lining Feng, Yan Xia
wiley   +1 more source

CFD-based methodology for the characterization of the combustion process of a passive pre-chamber gasoline engine

Transportation Engineering, 2023
Pre-chamber (PC) ignition systems, enabling Turbulent Jet Ignition (TJI) combustion, represent a promising technology to extend the lean limit of Spark Ignition Internal Combustion Engines.
A. Piano, A. Scalambro, F. Millo, F. Catapano, P. Sementa, S. Di Iorio, A. Bianco   +6 more
doaj   +1 more source

Technical Aspects of Natural Gas Pyrolysis in Liquid Metal Bubble Column Reactors

Energy Technology, Volume 12, Issue 9, September 2024.
The Karlsruhe Institute of Technology has intensified the development of the liquid metal bubble columns technology. Various key aspects have been addressed, such as scale‐up and natural gas pyrolysis. Herein, further developments for a following pilot‐scale system have been investigated.
Christoph Hofberger, Benjamin Dietrich, Ralf Krumholz, Adam Paul Noglik, Michael Olbricht, Sabine Schatzmann, Leonid Stoppel, Marie Richter, Neele Uhlenbruck, Thomas Wetzel   +9 more
wiley   +1 more source