Results 11 to 20 of about 121,619 (305)

Active control of coaxial jet flames under different fuel compositions through manipulation of mixing process with miniature jet actuators

open access: yesJournal of Thermal Science and Technology, 2020
The gaseous fuel-air coaxial jet flow and combustion under different fuel compositions are actively controlled through periodic excitation of the initial jet shear layer with arrayed miniature jet actuators equipped on the inner surface of the annular ...
Yu SAIKI   +3 more
doaj   +1 more source

Strategies for Hydrogen-Enriched Methane Flameless Combustion in a Quasi-Industrial Furnace

open access: yesFrontiers in Energy Research, 2021
In this present work, simulations of 20 kW furnace were carried out with hydrogen-enriched methane mixtures, to identify optimal geometrical configurations and operating conditions to operate in flameless combustion regime.
Ruggero Amaduzzi   +6 more
doaj   +1 more source

Effect of steam addition on the flow field and NOx emissions for Jet-A in an aircraft combustor [PDF]

open access: yes, 2016
The steam injection technology for aircraft engines is gaining rising importance because of the strong limitations imposed by the legislation for NOx reduction in airports.
Hu, Chunbo   +3 more
core   +1 more source

Experimental and Numerical Investigation of Laminar Burning Velocities of Artificial Biogas Under Various Pressure and CO2 Concentration [PDF]

open access: yesE3S Web of Conferences, 2019
As a renewable and sustainable fuel made from digestion facility, biogas is composed predominantly of methane (CH4) and carbon dioxide (CO2). CO2 in biogas strongly affects its combustion characteristics.
Anggono Willyanto   +3 more
doaj   +1 more source

A comparison of PAH emission sampling methods (cyclone, impactor) in particulate and gaseous phase [PDF]

open access: yes, 2018
Four different domestic heating boilers and four types of fuel (lignite, wet wood, wood pellets and mixed fuel) were tested, and the emissions of the particulate matter (PM) and polycyclic aromatic hydrocarbons (PAHs) were correlated. Dekati low-pressure
Hopan, František   +6 more
core   +1 more source

Experimental Investigation into the Effects of Fuel Dilution on the Change in Chemical Properties of Lubricating Oil Used in Fuel Injection Pump of Pielstick PA4 V185 Marine Diesel Engine

open access: yesLubricants, 2022
The engine oil contamination caused by various chemical elements and fuel is an important problem. As a consequence, the engine oil loses its tribological properties, engine lubrication worsens and may lead to potential problems such as excessive wear ...
Piotr Kaminski
doaj   +1 more source

Analysis of auto-ignition of heated hydrogen-air mixtures with different detailed reaction mechanisms [PDF]

open access: yes, 2011
Auto-ignition processes of hydrogen, diluted with nitrogen, in heated air are numerically investigated by means of an unsteady laminar flamelet approach in mixture fraction space. The focus is on the auto-ignition delay time and the most reactive mixture
Merci, Bart, Stankovic, Ivana
core   +1 more source

A comparison of computational and experimental lift-off heights of coflow laminar diffusion flames [PDF]

open access: yes, 2005
As a sensitive marker of changes in flame structure, the number densities of excited-state CH (denoted CH*), and excited-state OH (denoted OH*) are imaged in coflow laminar diffusion flames. Measurements are made both in normal gravity and on the NASA KC-
Fielding, Joseph   +4 more
core   +2 more sources

N2 and Ar dilution on the premixed biogas jet flame under external acoustic enforcement

open access: yesPropulsion and Power Research, 2023
In this study, combustion instabilities and flue gas emission changes under different dilutions of N2 (nitrogen) and Ar (argon) of a promising biogas mixture (70% CH4 - 30% CO2) in the fight against greenhouse gas emissions were investigated.
Buğrahan Alabaş   +2 more
doaj   +1 more source

Effect of inlet valve timing and water blending on bioethanol HCCI combustion using forced induction and residual gas trapping [PDF]

open access: yes, 2008
This is the post-print version of the final paper published in Fuel. The published article is available from the link below. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other ...
A. Megaritis   +5 more
core   +1 more source

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