rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Numerical study of pulverized coal-litter biomass blend combustion and pollutant emissions in a swirl burner
  name:
    name part: Wei, Gengsheng.
    role:
      role term: creator
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: xx
    date issued: 2002
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xix, 286 leaves : illustrations ; 28 cm.
  abstract: Combustion of pulverized coal-biomass blend is one of the most attractive new technologies to the electric power industry to reduce fuel cost and pollutant emissions. In this work the biomass considered is broiler litter called litter biomass or LB. Two tasks were performed: 1) formulation study of a mixture fraction PDF method for pulverized fuel combustion modeling and its simplification for three mixture fraction problems, 2) numerical study of pulverized coal-LB blend combustion and pollutant emissions in a swirl burner. In the study of the mixture fraction PDF method, a system of arbitrary number mixture fractions is considered. General equations and procedures to solve turbulence mean chemical properties based on fast chemistry assumption are obtained. In the numerical study which is the major part of this work, the PCGC2 model for pulverized fuel combustion is modified by incorporating a moisture vaporization model, considering more char reactions, implementing adiabatic boundary condition, and including PO₂ and P₄O₁₀ calculations. The generalized mixture fraction PDF method is reduced to three mixture fractions which track primary air, fuel mixture offgas, and vaporized moisture, respectively. The PCGC2 program is significantly modified. Numerical predictions are conducted and a fairly good agreement with experimental data is achieved for the TAMU 100,000 BTU/hr (30 kW) boiler burner facility. The major features of moisture vaporization and its effects on flame structure and species emissions are successfully captured. The reaction 2C+O₂->2CO is generally the only important char reaction whereas the steam-char reaction is found important at some near-burner locations where water vapor concentration is high and O₂ concentration is low. At furnace exit most phosphorous emissions are in the form of PO₂ at a few hundred ppm while emission of P₄O₁₀ is very low (a few ppm). Parametric study is carried out numerically to determine effects of key parameters on combu…
  note: by Gengsheng Wei.
  note: Vita.
  note: "Major Subject: Mechanical Engineering".
  note: Issued also on microfiche from University Microfilm Inc.
  note: Ph. D. Texas A&M University 2002.
  note: Includes bibliographical references (leaves 130-134).
  subject:
    topic: Major mechanical engineering
  identifier: 30-72553 UMI
  identifier: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: http://proxy.library.tamu.edu/login
  record info:
    record content source: TXA
    record creation date: 030730
    record change date: 20190325110254.0
    record identifier: in00001772208