Results 321 to 330 of about 1,656,529 (387)

Laminar Microjet Diffusion Flame Response to Transverse Acoustic Excitation

, 2020
The present experiments focused on the response of burning gaseous fuel jets to prescribed transverse acoustic excitation as a means of exploring the coupling of reactive, acoustic, and flow processes relevant to combustion instabilities. Single reactive
H. Sim, Andres Vargas, Dongchan Ahn, A. Karagozian   +3 more
semanticscholar   +1 more source

Chaos, synchronization, and desynchronization in a liquid-fueled diffusion-flame combustor with an intrinsic hydrodynamic mode.

Chaos, 2019
We experimentally investigate the nonlinear dynamics of a thermoacoustically self-excited aero-engine combustion system featuring a turbulent swirling liquid-fueled diffusion flame in a variable-length combustor. We focus on the steady-state dynamics via
Yu Guan, Larry K. B. Li, Byeonguk Ahn, Kyu Tae Kim   +3 more
semanticscholar   +1 more source

Investigation on Soot Characteristics of Gasoline/Diesel Blends in a Laminar Coflow Diffusion Flame

Energy & Fuels, 2018
Gasoline addition in diesel fuel could not only improve the overall energy efficiency, but also could reduce the soot emission on diesel engine. However, the influence of gasoline on the soot forming characteristics has not been revealed fundamentally. A
Fushui Liu, Yongli Gao, Han Wu, Zhengwu Zhang, Xu He, Xiang-rong Li   +5 more
semanticscholar   +1 more source

Effects of Flame Temperature on PAHs and Soot Evolution in Partially Premixed and Diffusion Flames of a Diesel Surrogate

Energy & Fuels, 2019
In this paper, polycyclic aromatic hydrocarbons (PAHs) and soot formation in rich partially premixed flames and nonpremixed flames were studied using a blend of n-heptane and toluene.
Haifeng Liu, Yanqing Cui, Bei-ling Chen, D. Kyritsis, Qinglong Tang, Lei Feng, Yu Wang, Zhongshan Li, Chao Geng, M. Yao   +9 more
semanticscholar   +1 more source

Turbulent Forced Diffusion Flames

Combustion and Flame, 1995
A microscale, νβ ∼ νσβ13 is introduced for turbulent diffusion flames, where η and σβ respectively, are the Kolmogorov scale and the flame Schmidt number. In terms of this scale, the turbulent mass transfer integrated over a length l of a liquid fuel is shown to be M′= νBlνβ , where μ is the dynamic viscosity and B is the transfer number, B=(Y0∞
Vedat S. Arpaci, C.Y. Li
openaire   +1 more source

Measurement of temperature and temperature profile of wick stabilized micro diffusion flame under the effect of magnetic field using digital speckle pattern interferometry

, 2017
. The effect of upward decreasing, uniform, and upward increasing magnetic fields on the temperature and temperature profile of a wick stabilized micro diffusion flame is investigated experimentally by using digital speckle pattern interferometry (DSPI).
P. Pandey, M. Kumar, Varun Kumar, C. Shakher   +3 more
semanticscholar   +1 more source

Strong Chemical Interaction between Lithium Polysulfides and Flame‐Retardant Polyphosphazene for Lithium–Sulfur Batteries with Enhanced Safety and Electrochemical Performance

Advances in Materials, 2021
The shuttle effect of lithium polysulfides (LiPS) and potential safety hazard caused by the burning of flammable organic electrolytes, sulfur cathode, and lithium anode seriously limit the practical application of lithium–sulfur (Li–S) batteries. Here, a
Peng Chen, Zhanghua Wu, Tong Guo, Yan Zhou, Mingliang Liu, Xifeng Xia, Jingwen Sun, Lu-de Lu, X. Ouyang, Xin Wang, Yongsheng Fu, Junwu Zhu   +11 more
semanticscholar   +1 more source

NEAR-LIMIT SPHERICAL DIFFUSION FLAMES AND COOL DIFFUSION FLAMES

2023
To combat the rising threats of climate change, current combustion technologies must evolve to become cleaner and more efficient. This requires a better understanding of the fundamental properties of combustion. One way to gain this is through microgravity experiments, where the lack of buoyancy reduces flames to their most basic components ...
openaire   +2 more sources

Non-premixed Flames (Diffusion Flames)

2011
In many combustion processes, the fuel and oxidizer are separated before entering the reaction zone where they mix and burn. The combustion reactions in such cases are called “non-premixed flames,” or traditionally, “diffusion flames” because the transport of fuel and oxidizer into the reaction zone occurs primarily by diffusion.
Sara McAllister, Jyh-Yuan Chen, A. Carlos Fernandez-Pello   +2 more
openaire   +1 more source

Turbulent diffusion flames

Symposium (International) on Combustion, 1973
Experimental results are presented for turbulent diffusion flames of a round jet of hydrogen in a co-flowing stream of air. The aim of the work is to provide comprehensive data which will assist in refining the newer and more-powerful theories coming into use.
J.H. Kent, R.W. Bilger
openaire   +1 more source