Results 1 to 10 of about 380,574 (296)

Modelling Study of Cycle-To-Cycle Variations (CCV) in Spark Ignition (SI)-Controlled Auto-Ignition (CAI) Hybrid Combustion Engine by Using Reynolds-Averaged Navier–Stokes (RANS) and Large Eddy Simulation (LES) [PDF]

open access: goldEnergies, 2022
The spark ignition (SI)-controlled auto-ignition (CAI) hybrid combustion is characterized by early flame propagation combustion and subsequent auto-ignition combustion.
Xinyan Wang, Hua Zhao
doaj   +2 more sources

Assessment of implementation variants of conditional scalar dissipation rate in LES-CMC simulation of auto-ignition of hydrogen jet

open access: greenArchives of Mechanics, 2013
In this paper the large eddy simulation (LES) and conditional moment closure (CMC) combustion model have been applied for modelling of auto-ignition of hydrogen jet issuing into a hot ambient co-flow.
A. Tyliszczak
doaj   +2 more sources

Understanding the Influences of Thermal and Mixture Inhomogeneities on the Auto-Ignition Process in a Controlled Auto-Ignition (CAI) Engine Using LES [PDF]

open access: yesOil & Gas Science and Technology, 2017
This work applies Large Eddy Simulation (LES) to the combustion process within a CAI engine. The chemical reaction is treated with a pre-tabulation approach based on homogeneous reactor simulations. At this juncture, a five-dimensional chemistry database
Yildar Esra   +8 more
doaj   +3 more sources

Classical and quantum approaches to probabilistic modeling of fire occurrence in anthracite grade coal [PDF]

open access: yesScientific Reports
Despite having definite ignition points for a substance, auto ignition may be observed at different temperatures and energies. This paper presents a detailed quantitative analysis of anthracite coal ignition probability across various energy and ...
Aditya Kumar Thakur   +3 more
doaj   +2 more sources

Automated Auto-Ignition Temperature Measurement with Optical Flame Detection

open access: diamondCHIMIA, 2006
An automated auto-ignition installation in accordance with the safety standards described in DIN 51 794 and CENELEC EN 50014 CLC detecting the appearance of a flame and the controlling testing program using LabVIEW software package were ...
Pierre Schulz   +6 more
doaj   +3 more sources

Experimental characterization of ethanol controlled auto-ignition in a single-cylinder research engine

open access: goldCase Studies in Thermal Engineering
This article reports an experimental analysis of combustion, fuel consumption and pollutant emissions parameters in a single-cylinder research engine operating on spark-ignition (SI) and controlled auto-ignition (CAI), fueled with ethanol.
Augusto César Teixeira Malaquias   +6 more
doaj   +2 more sources

Generation and Propagation Characteristics of an Auto-Ignition Flame Kernel Caused by the Oblique Shock in a Supersonic Flow Regime

open access: yesEnergies, 2022
The auto-ignition caused by oblique shocks was investigated experimentally in a supersonic flow regime, with the incoming flow at a Mach number of 2.5.
Wenxiong Xi   +4 more
doaj   +1 more source

Forced turbulence affected auto-ignition and combustion modes under engine-relevant conditions

open access: yesApplications in Energy and Combustion Science, 2020
Auto-ignition phenomena are paid more attention due to their close relation with abnormal combustions in advanced internal combustion engines. Previous investigations on intensive auto-ignition and knocking phenomena have been mainly conducted under ...
Jiaying Pan   +5 more
doaj   +1 more source

Evaluation of fuel additives for HCCI engines operated on fuel-rich methane/air mixtures: DME, DEE, and n-heptane

open access: yesApplications in Energy and Combustion Science, 2023
Piston engines can be operated with very fuel-rich fuel/air mixtures to simultaneously produce syngas, power, and heat – so-called “polygeneration”. In this context, the effects of methoxymethane (dimethyl ether, DME), ethoxyethane (diethyl ether, DEE ...
Kai Banke   +3 more
doaj   +1 more source

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