Modeling the pneumatic transport of solids with a bimodal particle size distribution

Persistent Link:
http://hdl.handle.net/10150/278610
Title:
Modeling the pneumatic transport of solids with a bimodal particle size distribution
Author:
Agarwal, Pawan, 1971-
Issue Date:
1997
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Particle size distribution (PSD) plays a key role in fluidization behavior. The effect of PSD in fluidized, gas-solid mixtures is elucidated by considering two types of bimodal particle mixtures. In the first case, a mixture of "large" particles, which engage in particle-particle collisions, and "small" particles or fines, which follow the fluid streamlines, are considered. In this case, one net effect of the fines is to decrease the pressure drop required to convey a given solids flux in a riser. In the second case, a mixture of two sizes of larger particles in which collisions between like and unlike particles occur are considered. In this case, a reduction in particle phase stress in the bimodal mixture as compared to a monosized particle mixture with the same mean particle diameter is predicted. For dilute flow, this stress reduction is minimal but increases in significance as the suspension becomes more concentrated.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Engineering, Chemical.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Chemical & Environmental Engineering
Degree Grantor:
University of Arizona
Advisor:
Sinclair, Jennifer L.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleModeling the pneumatic transport of solids with a bimodal particle size distributionen_US
dc.creatorAgarwal, Pawan, 1971-en_US
dc.contributor.authorAgarwal, Pawan, 1971-en_US
dc.date.issued1997en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractParticle size distribution (PSD) plays a key role in fluidization behavior. The effect of PSD in fluidized, gas-solid mixtures is elucidated by considering two types of bimodal particle mixtures. In the first case, a mixture of "large" particles, which engage in particle-particle collisions, and "small" particles or fines, which follow the fluid streamlines, are considered. In this case, one net effect of the fines is to decrease the pressure drop required to convey a given solids flux in a riser. In the second case, a mixture of two sizes of larger particles in which collisions between like and unlike particles occur are considered. In this case, a reduction in particle phase stress in the bimodal mixture as compared to a monosized particle mixture with the same mean particle diameter is predicted. For dilute flow, this stress reduction is minimal but increases in significance as the suspension becomes more concentrated.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectEngineering, Chemical.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineChemical & Environmental Engineeringen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorSinclair, Jennifer L.en_US
dc.identifier.proquest1386613en_US
dc.identifier.bibrecord.b37515913en_US
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