Results 31 to 40 of about 317,889 (303)

Effect of CH4–Air Ratios on Gas Explosion Flame Microstructure and Propagation Behaviors

Energies, 2012
To reveal the inner mechanism of gas explosion dynamic behavior affected by gas equivalent concentration, a high speed Schlieren image system and flow field measurement technology was applied to record the gas explosion flame propagation and flame ...
Ying Zhang, Yin Zhang, Xianfeng Chen
doaj   +1 more source

Effect of Multiphase Radiation on Coal Combustion in a Pulverized Coal jet Flame [PDF]

, 2017
The accurate modeling of coal combustion requires detailed radiative heat transfer models for both gaseous combustion products and solid coal particles. A multiphase Monte Carlo ray tracing (MCRT) radiation solver is developed in this work to simulate a ...
Baum, Bifen Wu, Buckius, Cai, Chen, Crowe, Goodwin, Howell, Im, Kayukawa, Kobayashi, Launder, Marakis, Marquez, Mehta, Michael F. Modest, Modest, Modest, Nordin, Ren, Rothman, Smart, Somesh P. Roy, Taniguchi, Taniguchi, Varma, Wang, Xinyu Zhao, Yamamoto, Yu, Zhao, Zhao   +31 more
core   +2 more sources

Effects of ambient temperature on the combustion processes of single pulverized coal particle

Journal of Thermal Science and Technology, 2021
In the pulverized coal combustion, coal particles cross over a steep temperature gradient formed by a diffusion flame. This temperature gradient affects the particle temperature. This study has experimentally investigated effects of field temperature and
Shinya SAWADA, Daisuke OKADA, Noriaki NAKATSUKA, Kazuki TAINAKA, Tsukasa HORI, Jun HAYASHI, Fumiteru AKAMATSU   +6 more
doaj   +1 more source

Hyperbranched phosphorus flame retardants: multifunctional additives for epoxy resins [PDF]

, 2019
We successfully synthesized multifunctional P-based hyperbranched polymeric flame retardants (hb-FRs) with varying oxygen-to-nitrogen (O : N) content and characterized them via 1H and 31P NMR and GPC.
Battig, A., Markwart, J., Schartel, B., Wurm, F.   +3 more
core   +2 more sources

Combustion Characteristics of Liquid Ammonia Direct Injection Under High-Pressure Conditions Using DNS

Energies
As a zero-carbon fuel, ammonia can be directly employed in its liquid form. However, its unique physical and chemical properties pose challenges to its application in engines. The direct injection of liquid ammonia is considered a promising technique for
Ziwei Huang, Haiou Wang, Qian Meng, Kun Luo, Jianren Fan   +4 more
doaj   +1 more source

Experimental study on mass burning rate and flame geometry of pool fires under two-way indirect ventilation in Ship's engine room

Case Studies in Thermal Engineering, 2023
The influence of wind on the combustion of pool fires has been demonstrated experimentally. However, the complex pipeline ventilation in the engine room is often ignored by existing research.
Liang Wang, Yinshu Guo, Zhaowang Xia, Xingsheng Lao, Shichuan Su, Zhilin Yuan, Zhongzheng Wu   +6 more
doaj   +1 more source

Type Ia Supernova: Burning and Detonation in the Distributed Regime

, 2007
A simple, semi-analytic representation is developed for nuclear burning in Type Ia supernovae in the special case where turbulent eddies completely disrupt the flame. The speed and width of the ``distributed'' flame front are derived.
Damkohler G., Ropke F., S. E. Woosley
core   +1 more source

Large-Eddy Simulation of combustion instabilities in a variable-length combustor. [PDF]

, 2013
This article presents a simulation of a model rocket combustor with continuously variable acoustic properties thanks to a variable-length injector tube. Fully compressible Large-Eddy Simulations are conducted using the AVBP code.
Garby, Romain, Poinsot, Thierry, Selle, Laurent   +2 more
core   +3 more sources

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source

Multifunctional Crushing and Piezoresistive Self‐Sensing in Conductive Epoxy/CNT‐Coated Polyetherimide TPMS Lattices

Advanced Engineering Materials, EarlyView.
This study reports lightweight polyetherimide triply periodic minimal surfaces lattices coated with carbon nanotube‐reinforced epoxy that combine mechanical robustness with self‐sensing. The conformal coating enhances stiffness, strength and energy absorption while enabling reliable strain monitoring.
A. Triay, J. Schneider, P. Harrison, S. Kumar   +3 more
wiley   +1 more source