Experimental study of flow regimes and dust emission in a free falling particle stream

2016 ◽  
Vol 292 ◽  
pp. 14-22 ◽  
Author(s):  
Yi Wang ◽  
Xiaofen Ren ◽  
Jiangping Zhao ◽  
Zongkun Chu ◽  
Yingxue Cao ◽  
...  
Keyword(s):  
Experimental Study ◽  
Dust Emission ◽  
Flow Regimes ◽  
Particle Stream ◽  
Free Falling

Experimental Investigation of Dust Amount from Free Falling Particle Stream Effected by Deflector Curvature of Dust Suppression

2013 ◽  
Vol 864-867 ◽  
pp. 1789-1792 ◽  
Author(s):  
Ze Qin Liu ◽  
Zhen Jing Wu ◽  
Ze Peng Feng
Keyword(s):  
Experimental Investigation ◽  
Dust Control ◽  
Emissions Reduction ◽  
Fugitive Dust ◽  
Bulk Materials ◽  
Dust Suppression ◽  
Suppression Effect ◽  
Particle Stream ◽  
Free Falling ◽  
The Relationship

This paper focuses on the study of the curvatures of deflector installed on the below receiving device to effect the dust amount from the free falling particle stream. The deflector curvature was artificially controlled to limit the fugitive dust direction which was generated by the collision between the free falling bulk materials and the receiving device. This method was used to improve efficiency of the dust control system to exhaust fugitive dust, and to achieve the targets of energy conservation and emissions reduction. The experimental method was adopted to explore the relationship between the deflector curvature and the producing dust quantity. The experimental results indicated that, the dust suppression effect containing deflector contained a certain radian was more remarkable, when the height of the free falling of bulk materials was constant. The producing dust quantity decreased slightly with the deflector curvature increasing, and then increased rapidly. When the deflector curvature was 0.045 cm-1 or 0.060cm-1, the minimum of producing dust quantity could be obtained, and the dust removal effect might be significant.

An Examination of Flow Regimes Associated With Inkjet-Printed Colloidal Drops

2008 ◽  
Author(s):  
Vadim Bromberg ◽  
Sailee Gawande ◽  
Ying Sun ◽  
Timothy Singler
Keyword(s):  
Experimental Study ◽  
Radial Flow ◽  
Internal Flow ◽  
Flow Regimes ◽  
Solid Substrate ◽  
Marangoni Flow ◽  
Single Group ◽  
Evaporation Dynamics

An experimental study of the evaporation dynamics for an inkjet-printed drop on a solid substrate has been attempted. Using fluorescent spherical colloids, the internal flow of an evaporating drop has been observed directly. During the initial stages of the process, a novel inward radial flow carries the particles as a single group towards the center of the drop. Once the particles have converged near the center, a significantly slower outward radial flow proceeds. These flow regimes are qualitatively analyzed and their relationship to a possible thermal Marangoni flow is discussed.

Experimental Study the Affection of the Dust Emission on Sand Stockpile by the Height of Windbreak Wall and Wind Speed

2014 ◽  
Vol 989-994 ◽  
pp. 823-826
Author(s):  
Ze Qin Liu ◽  
Li Ying Ma ◽  
Xin Yu Zhao
Keyword(s):  
Experimental Study ◽  
Particle Size ◽  
Wind Speed ◽  
Experimental Testing ◽  
Dust Emission ◽  
Engineering Application ◽  
Local Wind ◽  
Practical Engineering ◽  
Working Principle ◽  
Natural Wind

Based on the perspective of saving investment and reducing dust emission, the method of experimental study and the working principle of windbreak wall were adopted in this paper to explore the affection of the dust emission on sand stockpile by the height of windbreak wall and natural wind speed. According to the experimental testing, the data processing and analysis by the origin software, the studied results indicated that, the dust emission of the same particle size of powder (sand) increased with increasing the wind speed, the dust emission of the same particle size and the same wind speed of powder reduced with increasing the height of the windbreak wall., When the height of windbreak wall is 5/6 times of the height of the stockpile for a certain height of the bulk stockpile, the dual purposes of the minimum dust emission of bulk stockpile and saving investment could be gained. In the practical engineering application, the height of the windbreak wall should be chosen according to the actual situation (the density of the stockpile, particle size as well as the local wind speed).

scholarly journals Dust emission in powder handling: Free falling particle plume characterisation

2009 ◽  
Vol 152 (2-3) ◽  
pp. 415-420 ◽  
Author(s):  
Renaud Ansart ◽  
Alain de Ryck ◽  
John A. Dodds
Keyword(s):  
Dust Emission ◽  
Free Falling

Experimental Study for Evaluation of Spreading Behavior of Free-falling Molten Core With Floor Impingement

2021 ◽  
Author(s):  
Tomomasa Ito ◽  
Yuta Watanabe ◽  
Yasunori Yamamoto ◽  
Florian SAHBOUN ◽  
SHUICHIRO MIWA
Keyword(s):  
Experimental Study ◽  
Spreading Behavior ◽  
Free Falling
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