Results 261 to 270 of about 402,207 (298)

Flowing foam bubble size control

IFAC Proceedings Volumes, 2000
Abstract Froth flotation performance can be estimated from the bubble surface area flux. To control such systems, a relationship between the bubble size and the operating parameters has to be found. An experimental system was designed that allowed the foam to flow vertically and to be filmed. The results obtained showed the existence of a linear, non-
S. Rossi, J.J. Cilliers
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Formation of moderate‐size bubbles

AIChE Journal, 1963
AbstractBubbles were formed in water when air was passed through a single square‐edged orifice which had been drilled in a glass plate. The glass plate was 0.05 in. thick, and the orifice diameter was 1/8 in. The air chambers above the liquid surface and below the orifice plate were varied. The extreme values of these volumes were 0.00975 and 0.195 cu.
John F. Mahoney, Leonard A. Wenzel
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Bubble size measurement in electroflotation

Minerals Engineering, 2010
Abstract A feature of electroflotation is the ability to create very fine bubbles, which are known to improve flotation performance of fine particles. This study was aimed at determining the hydrogen bubble size generated as a function of current density and electrode geometry.
Sarkar, Shahjahan Kaisar Alam, Evans, G. M., Donne, S. W.   +2 more
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Size Distribution of Cavitation Bubbles

2015
Acoustic cavitation is defined as the formation of a vapor cavity and bubbles in response to an acoustic field. One can generalize this definition to encompass any observable activity involving a bubble or a population of bubbles stimulated into motion by an acoustic field (Apfel in Methods in Experimental Physics 19:355–411, 1984). There are two basic
Shanshan Xu, Xiaodong Liu, Mingxi Wan
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Dynamics of micron size bubbles

AIP Conference Proceedings, 1975
Dynamic properties of micron diameter bubbles in garnet compositions (EuYb)3(FeGa)5012, (EuTm)3(FeGa)5012, and (Eu)3 (FeGa)5012, are reported here. The coercivities and mobilities of these bubbles compare vary favorably with those of 5–6 micron bubbles. A mobility of 1000 cm/sec/Oe was found for the composition Eu0.8Tm2.2 Fe4.5Ga0.5O12.
H. L. Hu, E. A. Giess
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Mass transfer and bubble size in a bubble column under pressure

Chemical Engineering Science, 1994
The influence of pressure on the gas hold-up in a bubble column is determined for a sodium sulphite solution in combination with the volumetric mass transfer coefficient. Furthermore, for the same conditions the bubble size is also estimated from photos.
WILKINSON, PM, HARINGA, H, VANDIERENDONCK, LL   +2 more
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Bubble size distribution near a pressure antinode

The Journal of the Acoustical Society of America, 1999
When strong ultrasonic standing wave fields are generated in liquid-filled resonators, cavitation bubbles emerge and build dynamic structures, typically near the pressure antinodes. For technical applications like sonochemical reactions taking place in the resonator, the size distribution of the clustering bubbles is an important parameter.
Mettin, R., Luther, Stefan, Ohl, Claus-Dieter, Lauterborn, W.   +3 more
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Generation and characterization of submicron size bubbles

Advances in Colloid and Interface Science, 2012
A baffled high intensity agitation (BHIA) cell was used to generate submicron size bubbles of an average diameter around 500nm by hydrodynamic cavitation. The generation of submicron size bubbles by BHIA cell was found to be largely dependent on the agitation speed of impellers. The duration of agitation and temperature showed only a marginal effect on
Chendi, Wu, Kirsten, Nesset, Jacob, Masliyah, Zhenghe, Xu   +3 more
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Continuous Bubble Fractionation: Part II, Effects of Bubble Size and Gas Rate

Environmental Letters, 1973
Abstract Theoretical equations developed in Part I of this paper1 have been evaluated experimentally using bubble size and gas flow rate as variables. Variations of bubble size and gas flow rate, which will affect the column performance of either batch or continuous bubble fractionation system, are predicted by the developed theory.
Lawrence Kong-Pu Wang, Marvin L. Granstrom, Efstathios L. Bourodimos, Bong T. Kown   +3 more
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Size Matters for Flashing Bubbles

Focus, 2001
Experiments on large bubbles may put to rest one of the mysteries surrounding the emission of light by bubbles in water.
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