Results 101 to 110 of about 12,314 (268)

Two-dimensional analysis of two-phase reacting flow in a firing direct-injection diesel engine [PDF]

open access: yes
The flow field, spray penetration, and combustion in two-stroke diesel engines are described. Fuel injection begins at 345 degrees after top dead center (ATDC) and n-dodecane is used as the liquid fuel.
Nguyen, H. Lee
core   +1 more source

Control of the low-load region in partially premixed combustion

open access: yesJournal of Physics: Conference Series, 2016
Partially premixed combustion (PPC) is a low temperature, direct-injection combustion concept that has shown to give promising emission levels and efficiencies over a wide operating range. In this concept, high EGR ratios, high octane-number fuels and early injection timings are used to slow down the auto-ignition reactions and to enhance the fuel and ...
Gabriel Ingesson   +3 more
openaire   +1 more source

Effect of degree of fuel vaporization upon emissions for a premixed partially vaporized combustion system [PDF]

open access: yes
An experimental and analytical study of the combustion of partially vaporized fuel-air mixtures was performed to assess the impact of the degree of fuel vaporization upon emissions for a premixing-prevaporizing flametube combustor. Data collected in this
Cooper, L. P.
core   +1 more source

A detailed comparison of ethanol–diesel direct fuel blending to conventional ethanol–diesel dual-fuel combustion

open access: yesAutomotive and Engine Technology
Dual-fuel combustion is a well-known measure to enable the combustion of low-reactivity fuels (LRF) in compression-ignited engines with high thermal efficiency through a pilot injection of a high-reactivity fuel (HRF).
Florian Müller, Michael Günthner
doaj   +1 more source

Investigation into Lean-Burn Combustor Thermo-acoustic Instabilities: Modelling of Entropy Convection for Low Frequency Rumble Prediction [PDF]

open access: yes
New combustion methods, aimed to reduce emissions, are shown to be susceptible to instability. To reduce nitrogen oxides, the traditional diffusion flame is replaced by lean combustion, where fuel-air are partially premixed, and combustion conditions are
BARALE, MARCO
core  

An accurate, fast, mathematically robust, universal, non-iterative algorithm for computing multi-component diffusion velocities

open access: yes, 2016
Using accurate multi-component diffusion treatment in numerical combustion studies remains formidable due to the computational cost associated with solving for diffusion velocities.
Ambikasaran, Sivaram   +1 more
core   +1 more source

CHEMISTRY-TURBULENCE COUPLING IN A MODEL OF INHOMOGENOUSLY PREMIXED COMBUSTION

open access: yesTASK Quarterly, 2003
Results of work on an extension of the turbulent flame speed model used for a mathematical description of partially premixed combustion are presented. The approach is based on the concept of internal coupling between the turbulence of the mixed fuel and
JANUSZ BADUR   +2 more
doaj  

Large Eddy Simulation of a Swirl-Stabilized Pilot Combustor from Conventional to Flameless Mode

open access: yesJournal of Combustion, 2016
This paper investigates flame and flow structure of a swirl-stabilized pilot combustor in conventional, high temperature, and flameless modes by means of a partially stirred reactor combustion model to provide a better insight into designing lean ...
Ehsan Fooladgar, C. K. Chan
doaj   +1 more source

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