Results 21 to 30 of about 4,819 (262)

Physical and mathematical modeling of ignition of methane-air mixture in the presence of coal microparticles

open access: yesMATEC Web of Conferences, 2017
The results of numerical investigation of the ignition of a stoichiometric methane-air mixture in the presence of carbon particles with diameters of 20-52 μm in the temperature range 950-1150 K and pressures of 1.5-2.0 MPa are presented.
Fedorov Aleksandr, Tropin Dmitry
doaj   +1 more source

Chemical Kinetic Study on Dual-Fuel Combustion: The Ignition Properties of n-Dodecane/Methane Mixture

open access: yesInternational Journal of Chemical Engineering, 2021
The natural gas (NG)/diesel dual-fuel engine has attracted extensive attention in recent years, and the influence of ignition delay on the engine is very important.
Weijian Zhou   +4 more
doaj   +1 more source

Design and simulation of gas burner ejectors

open access: yesCarbon Resources Conversion, 2021
Ignition within gas burner ejectors can lead to off design conditions and has significant influence on the burner behavior. Thus ignition in the ejector should be prevented. In the present study the influence of combustion reactions on the performance of
Mario Pichler   +6 more
doaj   +1 more source

Dependence of Biofuel Ignition Chemistry on OH-Initiated Branching Fractions

open access: yesFrontiers in Mechanical Engineering, 2021
ion of hydrogen by ȮH is the dominant initiation step in low-temperature oxidation of biofuels. Theoretical chemical kinetics calculations for such reactions provide a direct means of quantifying rates of abstraction, which are critical to modeling ...
Samuel W. Hartness   +2 more
doaj   +1 more source

The surface activation of boron to improve ignition and combustion characteristic

open access: yesDefence Technology, 2022
Boron is a very promising and highly attractive fuel because of high calorific value. However, the practical applications in explosives and propellants of boron have been limited by long ignition delay time and low combustion efficiency.
Jian Wang   +4 more
doaj   +1 more source

Studying solid fuel ignition by CO2-laser

open access: yesMATEC Web of Conferences, 2017
The ignition data on Siberian bituminous coal and lignite by a continuous CO2-laser were presented in current work. Measurements were carried out at the heat flux density range of 90–150 W/cm2 in air.
Korotkikh Alexander   +2 more
doaj   +1 more source

Effects of Hydrogen Addition on Premixed Combustion of Kerosene in SI Engine

open access: yesEnergies, 2023
Spark ignition (SI) engines fueled with kerosene have broad application prospects in unmanned aviation vehicles. The knock phenomenon of kerosene in SI engines is a huge challenge, leading to a much lower power output than gasoline engines.
Yuxuan Zhao, Enhua Wang, Zhicheng Shi
doaj   +1 more source

Ignition characteristics of nitromethane-doped ethanol in a heated shock tube

open access: yesEnergetic Materials Frontiers, 2021
Ignition delay times of nitromethane-doped ethanol dual fuels are measured under the micro-combustion engine conditions (8 ​× ​105 ​Pa and 904–1477 ​K). The promotion effect of nitromethane on ethanol ignition is more pronounced at a fuel-lean condition;
Yan-lei Shang   +7 more
doaj   +1 more source

Thermodynamic analysis of diesel engine ignition delay under low load conditions

open access: yesEnergy Reports, 2022
In recent decades, renewable energies (e.g., wind and solar) were introduced to reduce the dependency of diesel generation in remote areas and islands power systems.
A.G.M.B. Mustayen   +4 more
doaj   +1 more source

Ignition Delay and Limit of Ignitability for Sodium Pool

open access: yesJSME International Journal Series B, 2006
Regarding sodium pool burning, ignition delay and ignitability are examined in order to obtain appropriate, comprehensive parameters that can correlate dominant system parameters influencing ignition. To this aim, theoretical work is first conducted, considering that the surface reaction exerts the main influence.
openaire   +2 more sources

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