Effects of C particle size on the ignition and combustion characteristics of the SHS reaction in the 20wt.% Ni–Ti–C system

2008 ◽  
Vol 460 (1-2) ◽  
pp. 276-282 ◽  
Author(s):  
Y.F. Yang ◽  
H.Y. Wang ◽  
R.Y. Zhao ◽  
Y.H. Liang ◽  
L. Zhan ◽  
...  
Keyword(s):  
Particle Size ◽  
Combustion Characteristics ◽  
Ignition And Combustion

Preparation, ignition, and combustion of mechanically alloyed Al-Mg powders with customized particle sizes

2013 ◽  
Vol 1521 ◽  
Author(s):  
Yasmine Aly ◽  
Vern K. Hoffman ◽  
Mirko Schoenitz ◽  
Edward L. Dreizin
Keyword(s):  
Particle Size ◽  
Ignition Delay ◽  
Pure Aluminum ◽  
Particle Morphology ◽  
Combustion Characteristics ◽  
Particle Sizes ◽  
Mechanically Alloyed ◽  
Pressurization Rate ◽  
Improved Performance ◽  
Ignition And Combustion

ABSTRACTAdding aluminum to propellants, pyrotechnics, and explosives is a common way to boost their energy density. A number of approaches have been investigated that shorten aluminum ignition delay, increase combustion rate, and decrease the tendency of aluminum droplets to agglomerate. Previous work showed that particles of mechanically alloyed Al-Mg powders burn faster than similarly sized particles of pure aluminum. However, preparation of mechanically alloyed powders with particle sizes matching those of fine aluminum used in energetic formulations was not achieved. This work is focused on preparation of mechanically alloyed, composite Al-Mg powders in which both internal structures and particle size distributions are adjusted. Binary powders with compositions in the range of 50 - 90 at. % Al were prepared and characterized. Milling protocol is optimized to prepare equiaxial, micron-scale particles suitable for laboratory evaluations of their oxidation, ignition, and combustion characteristics. Quantitative particle size analyses are done using low-angle laser light scattering. Electron microscopy and x-ray diffraction are used to examine particle morphology and phase makeup, respectively. Combustion of aerosolized powder clouds is studied using a constant volume explosion setup. For all materials, ignition and combustion characteristics are compared to each other and to those of pure Al. Compositions with improved performance (i.e., shorter ignition delay and faster pressurization rate) compared to pure Al are identified.

EFFECT OF MOISTURE AND PARTICLE SIZE ON THE COMBUSTION CHARACTERISTICS OF SEWAGE SLUDGE IN A FIXED BED

2018 ◽  
Author(s):  
Joana Freitas Campana ◽  
Kaio Pandolfi Pessotti ◽  
Carlos Eduardo Silva Abreu ◽  
Patrick de Jesus
Keyword(s):  
Particle Size ◽  
Sewage Sludge ◽  
Fixed Bed ◽  
Combustion Characteristics ◽  
Effect Of Moisture

Ignition and Combustion Characteristics of Laser Irradiated Al/CuxO Nanoparticle Pellets and Nanolaminates

2021 ◽  
pp. 1-10
Author(s):  
Florin Saceleanu ◽  
Lauren LeSergent ◽  
Yiqi Zhang ◽  
Victoria Kerr ◽  
John Z. Wen ◽  
...  
Keyword(s):  
Combustion Characteristics ◽  
Ignition And Combustion

scholarly journals Study of Ignition and Combustion Characteristics of Consecutive Injections with iso-Octane and n-Heptane as Fuels

2020 ◽  
Vol 34 (11) ◽  
pp. 14741-14756
Author(s):  
Sensen Xing ◽  
Guanxiong Zhai ◽  
Haijun Mo ◽  
Paul R. Medwell ◽  
Anthony C. Y. Yuen ◽  
...  
Keyword(s):  
Combustion Characteristics ◽  
Ignition And Combustion

Ignition and Combustion Characteristics of Nanoscale Al/AgIO3: A Potential Energetic Biocidal System

2010 ◽  
Vol 183 (3) ◽  
pp. 285-302 ◽  
Author(s):  
K. T. Sullivan ◽  
N. W. Piekiel ◽  
S. Chowdhury ◽  
C. Wu ◽  
M. R. Zachariah ◽  
...  
Keyword(s):  
Combustion Characteristics ◽  
Ignition And Combustion

Experimental Study of Ignition and Combustion Characteristics of Single Particles of Zhundong Lignite

2017 ◽  
Vol 32 (4) ◽  
pp. 4221-4226 ◽  
Author(s):  
Zhezi Zhang ◽  
Mingming Zhu ◽  
Jianbo Li ◽  
Kai Zhang ◽  
Gang Xu ◽  
...  
Keyword(s):  
Experimental Study ◽  
Combustion Characteristics ◽  
Single Particles ◽  
Ignition And Combustion

Experimental Study on Combustion Characteristics of Biomass and Coal Blended

2013 ◽  
Vol 805-806 ◽  
pp. 200-207
Author(s):  
Bing Zhang ◽  
Guang Wu Lu
Keyword(s):  
Particle Size ◽  
Ignition Temperature ◽  
Combustion Process ◽  
Combustion Characteristics ◽  
Combustion Characteristic ◽  
Thermogravimetric Analyzer ◽  
Rate Of Combustion ◽  
Mixing Proportion ◽  
Biomass Particle Size ◽  
Obvious Weight Loss

Under different conditions,combustion characteristics of the single biomass,the single coal and the mixture of biomass and coal were analyzed by using thermogravimetric analyzer. Combustion characteristic parameters of the sawdust,the rice husk,the rice straw and the Baisha coal of Leiyang were studied,including ignition temperature,the maximum rate of combustion temperature,the burnout temperature and so on. The experimental results show that the biomass burning temperature is lower than the Baisha coal and there are two obvious weight loss phases in the combustion process of the biomass. However,there is only one in the coal. The ignition temperature and time of the coal can be reduced ,the temperature range of the entire combustion can be extended,the coal can be burnout more well and the fuel combustion characteristic can be optimized by blending combustion. With the increase of biomass mixing proportion, the ignition temperature of mixing samples was decreased more obviously. Moreover,when the biomass particle size becomes R200,compared with R90 particle size under the same blending ratio,its ignition temperature is more lower.

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