Results 51 to 60 of about 49,600 (227)

Influence of Particle Size, Moisture, and Cloud Density on Wood Dust Ignition

open access: yesChemie Ingenieur Technik, EarlyView.
The ignition and combustion of particle clouds are strongly affected by particle interactions. This study uses spectroscopy to examine effects of particle size, water content, and cloud density. Results show ignition delay rises with larger size and density, whereas combustion duration depends mainly on water and density due to moisture‐driven ...
Matteo Giesen   +2 more
wiley   +1 more source

Role of Altitude in Influencing the Spray Combustion Characteristics of a Heavy-Duty Diesel Engine in a Constant Volume Combustion Chamber. Part I: Free Diesel Jet

open access: yesEnergies, 2023
Heavy-duty diesel engines operating in plateau regions experience deteriorated combustion. However, the lack of up-to-date information on the spray-combustion process limits the fundamental understanding of the role of altitude.
Chengguan Wang   +7 more
doaj   +1 more source

Triple flame structure and diffusion flame stabilization [PDF]

open access: yes, 1994
The stabilization of diffusion ñames is studied using asymptotic techniques and numerical tools. The configuration studied corresponda to parallel streams of cold oxidizer and fuel initially separated by a splitter píate.
Liñán Martínez, Amable   +4 more
core   +2 more sources

Experimental Investigation of Burning Liquids in Reduced Oxygen

open access: yesFire and Materials, EarlyView.
ABSTRACT The effects of oxygen concentration on combustion of gases have been investigated on fundamental levels in several studies. However, the same type of fundamental studies has not been made for liquid or solid fuels due to complex relationships between flame structure and changing mass loss rates (MLR).
Joakim Åström   +3 more
wiley   +1 more source

Experimental investigation of multi-burner array with lean lifted spray flames in inline and inclined configurations

open access: yesApplications in Energy and Combustion Science
Lean combustion in gas turbines garners attention for emissions reduction, yet it faces stability challenges demanding careful design considerations. In this study, a novel CHAIRLIFT combustor concept, which integrates low swirl lean lifted spray flames ...
Mohamed Shamma   +2 more
doaj   +1 more source

Electronic jelly: Engineering the mechanics of hydrogels for flexible electronics

open access: yesFlexMat, EarlyView.
By unifying mechanical reinforcement strategies—double networks, structural ordering, and dynamic interactions—this review demonstrates how engineered hydrogels can transcend their fragility to achieve the strength, toughness, and reliability required for flexible electronics, including wearable sensors, energy devices, and soft robotic systems ...
Tianfu Zheng   +2 more
wiley   +1 more source

Flame Stabilisation Mechanism for Under-Expanded Hydrogen Jets

open access: yesFire
A hydrogen under-expanded jet released from a high-pressure vessel or equipment into the atmosphere through a 0.53 mm diameter orifice results in a sustained lifted flame for pressures above 4 MPa and flame blow-out at pressures below 3 MPa. Knowledge of
Keiji Takeno   +6 more
doaj   +1 more source

Soot control of laminar jet-diffusion lifted flame excited by high-frequency acoustic oscillation

open access: yesJournal of Thermal Science and Technology, 2017
A novel technology to reduce soot is developed utilizing a high-frequency standing wave of 20 kHz applied to a methane-air lifted jet flame base. The amount of soot was measured using the transmitted light attenuation method. A mixing profile of the fuel
Mitsutomo HIROTA   +2 more
doaj   +1 more source

Dynamics of Laterally Propagating Flames in X-ray Bursts. I. Burning Front Structure [PDF]

open access: yes, 2019
We investigate the structure of laterally-propagating flames through the highly-stratified burning layer in an X-ray burst. Two-dimensional hydrodynamics simulations of flame propagation are performed through a rotating plane-parallel atmosphere ...
Cavecchi, Yuri   +5 more
core   +2 more sources

Research into limits of gas-fired burners flame stabilization in the flue gas recirculation [PDF]

open access: yes, 2020
Purpose. Determining the flue gas recirculation effect on the verge of the gas-fired burners flame stabilization based on experimental industrial research. Methods.
Holiakova, Iryna   +3 more
core   +1 more source

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