Results 31 to 40 of about 1,514 (209)

Computational investigation of methanol pre-chamber combustion in a heavy-duty engine

open access: yesApplications in Energy and Combustion Science, 2023
This work explored the potential of methanol pre-chamber combustion (PCC) for heavy-duty engine applications. An optical engine experiment was conducted to visualize the jet flame development.
Xinlei Liu   +7 more
doaj   +1 more source

Prechamber initiation of detonation in gaseous mixtures

open access: yesJournal of Physics: Conference Series, 2015
A process of deflagration-to-detonation transition in propane-butane-oxygen and acetylene-oxygen mixtures, in an open channel with a circular cross section with a diameter of 3 mm, was investigated experimentally. Detonation initiation was carried out by burning the mixture in the prechamber connected to the channel. The prechamber was considered as an
G Yu Bivol, S V Golovastov, V V Golub
openaire   +1 more source

Comparative Study of Spark-Ignited and Pre-Chamber Hydrogen-Fueled Engine: A Computational Approach

open access: yesEnergies, 2022
Hydrogen is a promising future fuel to enable the transition of transportation sector toward carbon neutrality. The direct utilization of H2 in internal combustion engines (ICEs) faces three major challenges: high NOx emissions, severe pressure rise ...
Hammam Aljabri   +9 more
doaj   +1 more source

CFD Optimization of the Pre-Chamber Geometry for a Gasoline Spark Ignition Engine

open access: yesFrontiers in Mechanical Engineering, 2021
In the present paper, an efficient optimization method based on Bayesian updating strategy is developed for the design of a spark-ignition engine equipped with pre-chamber.
Haiwen Ge   +5 more
doaj   +1 more source

Nozzle Design of Plug-and-Play Passive Pre-Chamber Ignition Systems for Natural Gas Engines

open access: yesApplied Sciences, 2023
To evaluate the significance of the geometrical parameters of a passive pre-chamber on engine performance, this study investigated the design of a plug-and-play passive pre-chamber in a 15 L heavy-duty natural gas engine.
Wei Li   +4 more
doaj   +1 more source

MODELING AND SIMULATION OF COMBUSTION AND DETONATION BY SUBCRITICAL STREAMER DISCHARGE [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2017
We consider the possibilities of combustion and detonation initiation for propane mixtured with air by microwave discharges created by a quasi-optical electromagnetic beam.
Pavel V. Bulat   +5 more
doaj   +1 more source

Peculiarities of the working process of low-thrust hypergolic-propellant liquid rocket engines with a thrust of less than 1 N

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2016
The article presents the results of theoretical and experimental studies of the peculiarities of the working process of low-thrust hypergolic- propellant liquid rocket engines (LTLRE) with the thrust of less than 1 N.
V. E. Nigodjuk, A. V. Sulinov
doaj   +1 more source

Analysis of Combustion Process in Industrial Gas Engine with Prechamber-Based Ignition System

open access: yesEnergies, 2018
Application of a pre-combustion chamber (PCC) ignition system is one of the methods to improve combustion stability and reduce toxic compounds emission, especially NOx.
Rafał Ślefarski   +4 more
doaj   +1 more source

Possible applications of prechambers in hydrogen internal combustion engines

open access: yesCombustion Engines, 2022
The use of hydrogen as a fuel for an internal combustion engines has caused many problems for years, the most significant of which seems to be the excessive emission of nitrogen oxides and the tendency to knock combustion. In order to ensure better control of the combustion process in a internal combustion engine powered by hydrogen, it has been ...
openaire   +1 more source

Optimization of Pre-Chamber Geometry and Operating Parameters in a Turbulent Jet Ignition Engine

open access: yesEnergies, 2022
A turbulent jet ignition engine enables operation with lean mixtures, decreasing nitrogen oxide (NOX) emissions up to 92%, while the engine efficiency can be increased compared to conventional spark-ignition engines.
Viktor Dilber   +5 more
doaj   +1 more source

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