Combustion of fine aluminum and magnesium powders in water

被引：69

作者：

Corcoran, Amy ^{[1
]}

Mercati, Stefano ^{[2
]}

Nie, Hongqi ^{[1
]}

Milani, Massimo ^{[2
]}

Montorsi, Luca ^{[2
]}

Dreizin, Edward L. ^{[1
]}

机构：

[1] New Jersey Inst Technol, Otto H York Dept Chem Biol & Pharmaceut Engn, Newark, NJ 07102 USA

[2] Univ Modena & Reggio Emilia, DISMI, I-42122 Reggio Emilia, Italy

来源：

COMBUSTION AND FLAME | 2013年 / 160卷 / 10期

关键词：

Metal combustion; Particle burn time; Hydrogen production; Underwater propulsion; PARTICLE COMBUSTION; BURN TIME;

D O I：

10.1016/j.combustflame.2013.04.019

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Micron-sized metal powders carried by a nitrogen flow were fed along the axis of a cylindrical hydrogen/oxygen diffusion flame. The particles ignited and burned in the water vapor at approximately 2500 K. Experiments were performed at atmospheric pressure. The environment in which particles burned was characterized in detail using computational fluid dynamics. The computations confirmed that the metal powders burned in water while the effect of oxygen and other oxidizing species could be neglected. Combustion was characterized experimentally for micron-sized powders of both aluminum and magnesium. Particle size distributions were measured using low-angle laser light scattering. Optical emission of the burning particles was recorded using filtered photomultiplier tubes. Measured durations of individual particle emission pulses were assumed to represent their burn times; these data were classified into logarithmically spaced time bins. The distribution of the particle burn times was correlated with their size distributions assuming that larger size particles burned longer. It was observed that correlation between the burn times, t, and particle diameters, D, can be approximately described as t similar to D-0.64 and t similar to D-0.68 for aluminum and magnesium powders, respectively. The results were compared to previous reports and possible reasons for discrepancies between the present and earlier results were discussed. (C) 2013 The Combustion Institute. Published by Elsevier Inc. All rights reserved.

引用

页码：2242 / 2250

页数：9

共 35 条

[1] ON WEAK EFFECT OF PARTICLE SIZE ON ITS BURN TIME FOR MICRON-SIZED ALUMINUM POWDERS [J].

Badiola, Carlo ;

Dreizin, Edward L. .

COMBUSTION SCIENCE AND TECHNOLOGY, 2012, 184 (12) :1993-2007

[2] Combustion characteristics of micron-sized aluminum particles in oxygenated environments [J].

Badiola, Carlo ;

Gill, Robert J. ;

Dreizin, Edward L. .

COMBUSTION AND FLAME, 2011, 158 (10) :2064-2070

[3] Oxidizer and pressure effects on the combustion of 10-μm aluminum particles [J].

Bazyn, T ;

Krier, H ;

Glumac, N .

JOURNAL OF PROPULSION AND POWER, 2005, 21 (04) :577-582

[4] Correlating aluminum burning times [J].

Beckstead, MW .

COMBUSTION EXPLOSION AND SHOCK WAVES, 2005, 41 (05) :533-546

[5]

CD-adapco, 2012, US GUID STAR CCM VER, P12179

[6] Aluminum particle combustion in turbulent flames [J].

Corcoran, Amy L. ;

Hoffmann, Vern K. ;

Dreizin, Edward L. .

COMBUSTION AND FLAME, 2013, 160 (03) :718-724

[7] Combustion wave propagation in magnesium/water mixtures: Experiments and model [J].

Diwan, Moiz ;

Hanna, David ;

Shafirovich, Evgeny ;

Varma, Arvind .

CHEMICAL ENGINEERING SCIENCE, 2010, 65 (01) :80-87

[8] PARTICLE COMBUSTION DYNAMICS OF METAL-BASED REACTIVE MATERIALS [J].

Dreizin, Edward L. ;

Badiola, Carlo ;

Zhang, Shasha ;

Aly, Yasmine .

INTERNATIONAL JOURNAL OF ENERGETIC MATERIALS AND CHEMICAL PROPULSION, 2011, 10 (04) :297-319

[9] Hydrogen production by reacting water with mechanically milled composite aluminum-metal oxide powders [J].

Dupiano, Paul ;

Stamatis, Demitrios ;

Dreizin, Edward L. .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2011, 36 (08) :4781-4791

[10]

Foote T. B. R., 2002, ADV CHEM PROPULSION, V1, P133

← 1 2 3 4 →