Results 211 to 220 of about 15,086 (244)
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Plasma Jet Ignition in Turbulent lean Mixtures
SAE Technical Paper Series, 1989<div class="htmlview paragraph">In order to confirm quantitatively the performance and characteristics of the plasma jet ignition in turbulent lean mixtures, combustion tests were carried out in a disk-shaped combustion chamber with lean turbulent methane-air mixtures.
E. Murase +3 more
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Spark ignition of lifted turbulent jet flames
Combustion and Flame, 2006This paper presents experiments on ignition and subsequent edge flame propagation in turbulent nonpremixed methane jets in air. The spark position, energy, duration, electrode diameter and gap, and the jet velocity and air premixing of the fuel stream are examined to study their effects on the ignition probability defined as successful flame ...
S AHMED, E MASTORAKOS
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Visualization of Propane and Natural Gas Spark Ignition and Turbulent Jet Ignition Combustion
SAE International Journal of Engines, 2012<div class="section abstract"><div class="htmlview paragraph">This study focuses on the combustion visualization of spark ignition combustion in an optical single cylinder engine using natural gas and propane at several air to fuel ratios and speed-load operating points.
Elisa Toulson +6 more
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A study of the turbulent jet flow field in a methane fueled turbulent jet ignition (TJI) system
Combustion and Flame, 2017Abstract This paper analytically and computationally examines the transient jet used to ignite combustible mixtures during Turbulent Jet Ignition (TJI). In TJI the ignition source, which originates in the prechamber, enters through a connecting nozzle into the main chamber as a transient high temperature jet of reacted mixture, reacting mixture and ...
Masumeh Gholamisheeri +2 more
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Numerical Simulation of Ignition Mechanism in the Main Chamber of Turbulent Jet Ignition System
Volume 2: Emissions Control Systems; Instrumentation, Controls, and Hybrids; Numerical Simulation; Engine Design and Mechanical Development, 2018The ignition mechanism of a lean premixed CHVair mixture by a hot turbulent jet issued from the pre-chamber combustion is investigated using 3D combustion CFD. The turbulent jet ignition experiments conducted in the rapid compression machine (RCM) at Michigan State University (MSU) were simulated.
Matias Muller +3 more
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LES-pdf simulation of a spark ignited turbulent methane jet
Proceedings of the Combustion Institute, 2011Abstract A spark ignited turbulent jet flame is simulated using Large Eddy Simulation (LES) in conjunction with the filtered probability density function ( pdf ) equation approach, which is solved using the Eulerian stochastic field method. The spark energy deposition is mimicked by a gaussian distributed source term in the enthalpy equation.
W.P. Jones, V.N. Prasad
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Effect of Turbulence on Forced Ignition of Jet-A/Air Mixtures
Journal of Engineering for Gas Turbines and Power, 2022AbstractConsistent ignition of reactive mixtures in turbulent conditions continues to be a challenge, particularly for large, multicomponent fuels. Prior work has shown that turbulence can affect ignition parameters such as flame speed, mixture temperature, and minimum ignition energy (MIE).
Kaz I. Teope, David L. Blunck
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Optimal Combustion Phasing Control of a Turbulent Jet Ignition Engine
2018 Annual American Control Conference (ACC), 2018The thermal efficiency of internal combustion engines can be affected by many factors. Combustion phase is one of these factors and attracted many researchers interest. Different from the conventional spark ignition engines, the combustion phase in turbulent jet ignition (TJI) engines is influenced by more control variables in both the pre- and main ...
Ruitao Song +3 more
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Turbulent jet ignition assisted combustion in a rapid compression machine
Combustion and Flame, 2017Abstract Numerical simulations of turbulent jet ignition (TJI) and combustion in a rapid compression machine (RCM) are conducted by a hybrid Eulerian–Lagrangian large eddy simulation/filtered mass density function (LES/FMDF) computational model. TJI is a novel method for initiating combustion in ultra-lean mixtures and often involves one or several ...
AbdoulAhad Validi +2 more
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Auto-ignition of Transient Turbulent Gaseous Fuel Jets at High Pressure
SAE Technical Paper Series, 2006<div class="htmlview paragraph">An experimental investigation of the autoignition of transient gaseous fuel jets in heated and compressed air is conducted in a shock tube facility. Experiments are performed at an initial pressure of 30 bar with initial oxidizer temperatures ranging from 1150 K to 1400 K, injection pressures ranging from 60 bar to
Gregory D. Sullivan +3 more
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