Introduction to Particle Technology

Rhodes, Martin

doi:10.1002/9780470727102

Cited by 453 publications

(333 citation statements)

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“…As the air velocity is reduced, the solids move more slowly and tend to settle in the lower section of the pipeline. When the air velocity is insufficient to keep all particles suspended, the particles start settling at the bottom of the pipe until total choking of the cross-section occurs (Rhodes, 2000). At this point, the solids are transported in the dense phase along the bottom of the pipe.…”

Section: Resultsmentioning

confidence: 99%

Dilute-phase pneumatic conveying of polystyrene particles: pressure drop curve and particle distribution over the pipe cross-section

Santos

Tambourgi

Fernandes

et al. 2011

Braz. J. Chem. Eng.

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-During the pneumatic conveying of plastic pellets, it has been observed that materials with similar physical characteristics may develop a substantial difference in pressure drop. In this work, the pressure drop in a particle-laden 2.7 meter long horizontal channel with circular cross-section is presented from an experimental perspective. Experiments are carried out for cylindrical polystyrene beads with an average diameter of 3.2 mm and mass loadings of 0.06 to 0.11 (kg particles/kg gas). The air mass flow rate was studied in the range from 0.085 kg/s to 0.170 kg/s. The pressure drop curve is shown as a function of air velocity and particle load. Response surface methodology showed high statistical significance for air velocity, particle load and their cross-relation.

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Section: Resultsmentioning

confidence: 99%

Dilute-phase pneumatic conveying of polystyrene particles: pressure drop curve and particle distribution over the pipe cross-section

Santos

Tambourgi

Fernandes

et al. 2011

Braz. J. Chem. Eng.

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“…(13) When a material is partly mixed, then the degree of mixing can be represented by some term M. Term M is defined by the following expression, M = (How much mixing has occurred) / (How much mixing could occur) or According to Lacey Mixing Index, M = (S0 2 -S 2 ) / (S0 2 -Sr 2 ) ……………Equation A, where, S0 is the value of S for the unmixed material and Sr is the value of S for the completely mixed material. (14) This can be expressed as follows. When S0 2 is much greater than Sr 2 the above Equation A can be rewritten as M = 1 -(S 2 / S0 2 )……………… Equation B Since the variance S 2 exponentially varies against time in any mixing mechanism, the velocity equation is expressed as, ln (1 -M) = -kt………………..…”

Section: Degree Of Mixingmentioning

confidence: 99%

Segregation leading to drop in thiamine content during solid-solid mixing

Gunaratne¹,

Wijesundara

Kuruppu³

et al. 2017

Pharm. J. SL

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“…-the tangential velocity can be calculated from the algebraic expression resulting from observations and measurements of this kind of flow (Rhodes 2008):…”

Section: Proposed Improvement Of the Hydraulic Systemmentioning

confidence: 99%

Whirling System of Water Exchange in Breeding Pools

Matej

Pawliczka

Sawicki

et al. 2016

Archives of Hydro-Engineering and Environmental Mechanics

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To create proper living conditions for sea mammals kept in closed systems, one has to make sure that the characteristics of breeding pools, such as their shape, dimensions, the facing of the walls and bottom, as well as the quality and motion of water, resemble as closely as possible the natural environment of the animals. An appropriate system of water exchange plays a very important role here. A complete exchange of water is time-consuming, expensive and troublesome, so it can be performed only periodically and should be supported by a supplementary continuous exchange. This operation improves water quality and can create a proper velocity field in breeding pools. The breeding pools investigated in the present study are located in a sealarium in Hel (Poland), which belongs to the Institute of Oceanography of the Gdańsk University. Tracer measurements, carried out in these reservoirs made it possible to evaluate the intensity of continuous water exchange. It was found that this intensity was insufficient (as evidenced by large dead zones in the pools and short detention time), and therefore alterations to the existing system were proposed (i.e. a tangential position of the inlet and a centrally situated outlet). On the basis of a simplified model of circulative water flow, it was shown that the altered hydraulic system can considerably improve the situation.

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Introduction to Particle Technology

Cited by 453 publications

References 0 publications

Dilute-phase pneumatic conveying of polystyrene particles: pressure drop curve and particle distribution over the pipe cross-section

Dilute-phase pneumatic conveying of polystyrene particles: pressure drop curve and particle distribution over the pipe cross-section

Segregation leading to drop in thiamine content during solid-solid mixing

Whirling System of Water Exchange in Breeding Pools

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