Passive Control of Particle Dispersion in a Particle-Laden Circular Jet Using Elliptic Co-Annular Flow: A Means for Improving Utilization and Emission Reductions in Pulverized Coal Burner

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Description

A passive control technology utilizing elliptic co-flow to control the particle flinging and particle dispersion in a particle (coal)-laden flow was investigated using experimental and numerical techniques. Preferential concentration of particles occurs in particle-laden jets used in pulverized coal burner and causes uncontrollable NO{sub x} formation due to inhomogeneous local stoichiometry. This particular project was aimed at characterizing the near-field flow behavior of elliptic coaxial jets. The knowledge gained from the project will serve as the basis of further investigation on fluid-particle interactions in an asymmetric coaxial jet flow-field and thus is important to improve the design of pulverized coal ... continued below

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199 pages

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Choudhuri, Ahsan R. June 1, 2003.

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A passive control technology utilizing elliptic co-flow to control the particle flinging and particle dispersion in a particle (coal)-laden flow was investigated using experimental and numerical techniques. Preferential concentration of particles occurs in particle-laden jets used in pulverized coal burner and causes uncontrollable NO{sub x} formation due to inhomogeneous local stoichiometry. This particular project was aimed at characterizing the near-field flow behavior of elliptic coaxial jets. The knowledge gained from the project will serve as the basis of further investigation on fluid-particle interactions in an asymmetric coaxial jet flow-field and thus is important to improve the design of pulverized coal burners where non-homogeneity of particle concentration causes increased NO{sub x} formation.

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199 pages

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OSTI as DE00825091

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  • Other Information: PBD: 1 Jun 2003

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  • Report No.: NONE
  • Grant Number: FG26-01NT41363
  • DOI: 10.2172/825091 | External Link
  • Office of Scientific & Technical Information Report Number: 825091
  • Archival Resource Key: ark:/67531/metadc779459

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Office of Scientific & Technical Information Technical Reports

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  • June 1, 2003

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

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  • Oct. 4, 2017, 5:17 p.m.

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Choudhuri, Ahsan R. Passive Control of Particle Dispersion in a Particle-Laden Circular Jet Using Elliptic Co-Annular Flow: A Means for Improving Utilization and Emission Reductions in Pulverized Coal Burner, report, June 1, 2003; Austin, Texas. (digital.library.unt.edu/ark:/67531/metadc779459/: accessed December 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.