Experimental study on the collision behaviors of micron-sized aluminum droplets with solid wall in high temperature burned gas

Ma, Zhiwei; Wei, Zhijun; Feng, Ying; Wang, Chao; Dong, Wei; Wang, Ningfei; Shi, Baolu

doi:10.1016/j.ast.2021.106791

Cited by 18 publications

(4 citation statements)

References 36 publications

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“…Ning et al [17] added a plano-convex cylindrical lens to expand the circular laser beam in the horizontal direction so that the heating time changed little with the location. The second way is to ignite metal particles in hot gas flows formed by gas burners including a tangential/axial jet burner [63], a McKenna burner with a center tube [34,83], a modified Bunsen burner [67], coaxial burners [71,72,75] and flat flame burner [18,37,64]. These burners could provide a hot gas flow atmosphere that is closer to the actual combustion environment.…”

Section: Generation and Ignition Of Single Metal Particlementioning

confidence: 99%

“…To avoid the error caused by agglomeration, ultra-sonication was applied to the sample before size detection. A scanning electron microscope (SEM) was adopted to acquire the morphology of the particles both before and after combustion [17,27,29,40,63,78,83]. Some researchers also used the images taken by SEM or optical microscope to analyze the size distribution of metal powders [17,29,34].…”

Section: Measurement Of Particle Size Morphology and Compositionmentioning

confidence: 99%

“…The final size distribution matches well with that from the laser particle size analyzer. The elemental and component analysis could be conducted by energy dispersive spectrometry [40,63,78] and x-ray diffractometer (XRD) [40,78].…”

Section: Measurement Of Particle Size Morphology and Compositionmentioning

confidence: 99%

“…For a camera that has a pixel size of 5.2 µm, the relative sizing error of a 25 µm particle is about 50%, but the error decreases rapidly when the diameter increases [83]. A similar shadowgraph method was used in collision research of aluminum droplets with solid a wall [63]. The third online particle size detection is used in a special system, in which the particles are generated in situ [33].…”

Section: Measurement Of Particle Size Morphology and Compositionmentioning

confidence: 99%

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Combustion diagnostics of metal particles: a review

Fan¹,

Liu²,

Yu³

2023

Meas. Sci. Technol.

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Metal fuel is one of the attractive alternative fuels for its high energy density and zero carbon emission. In the past, they were often used as additives in fireworks and propellants. More attentions have been paid to metal fuels as the environmental issue and energy dilemma become increasingly severe. Ongoing efforts have been devoted to both modelling and experimental studies of metal fuel combustion. This review mainly focuses on the experimental progress on the combustion of micron-scale metal fuels during the past three decades. The experimental setups and the combustion diagnostics techniques used for single particle combustion and metal dust flames have significant distinctions, so they have been summarized separately. Those setups to produce single particle flames or metal dust flames are discussed in terms of their structure, scope of application, advantages and disadvantages. The diagnostics techniques are classified according to the physical parameters that are commonly adopted to characterize the metal particle combustion including burn time, temperature, particle size, dust concentration and burning velocity. Both online and offline measurement techniques are investigated in detail focusing on the measurement principle, system configuration and uncertainty analysis. Finally, the review is concluded with some unresolved problems in the field of metal particles combustion diagnostics, and provides insights into promising future research directions.

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