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mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Fixed bed gasification studies on coal-feedlot biomass and coal-chicken litter biomass under batch mode operation
  name:
    name part: Priyadarsan, Soyuz.
    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
    form: remote
    extent: xxvi, 295 leaves : illustrations ; 28 cm.
  abstract: In the U.S. alone, approximately 200 million tons of dry cattle waste are being produced annually. Recently, cattle and poultry manure have been classified as biomass fuels and have been identified as sources of renewable energy. One of the processes for energy conversion of biomass fuels is thermochemical gasification. For the current study, a laboratory scale, 10 kW[th], fixed-bed gasifier (reactor internal diameter 0.15 m, reactor height 0.30 m) facility was built at the Texas A&M University Boiler Burner Laboratory, and was fired with a) coal, b) feedlot biomass (FB), c) chicken litter biomass (LB), d) high ash feedlot biomass (HFB), e) coal: FB blend (CFB), f) coal: LB blend (CLB), g) coal: HFB blend (CHFB), and h) LB: HFB blend (LHFB). The temperature profiles, and the gas species profile in the bed are measured and the species analyzed for heat contribution. The parametric studies include the effect of fuel particle size (average particle used were 0.52 mm and 9.5 mm), and the air flow rate (45 and 60 SCFH) on the gasification characteristics of the fuels. A summary of the results is as follows: The peak temperature in the bed was about 1500 K for coal (4.28 % ash), 1350 K for FB (14.83 % ash), and 1200 K for LB (43.85 % ash), correlating the decreased peak temperature with increased ash content. The devolatilization of coal, FB, and LB yielded the following: CH₄ (%): 2.5, 1.8, 1.0, CO (%): 27.9, 29.1, 29.1, H₂: 8.5, 8.0, 7.0. On an average, the heating value of the product gas leaving the gasifier was about 5.0 MJ/m³ for coal, 4.8 MJ/m³ for FB, and 4.5 MJ/m³ for LB. The gasification efficiency (45 SCFH) was the lowest for coal (37 %), followed by 39 % for FB, and 68.47 % for LB fuels. LB (18.9 % (Na₂O + K₂O) in ash) showed consistent bed agglomeration, while FB (7.03 %) showed a reduced tendency for agglomeration, and coal (1.98 %) exhibited no agglomeration in the bed. Based on the current gasification study FB is preferred compared to LB, since the former …
  note: by Soyuz, Priyadarsan.
  note: "Major subject: Mechanical Engineering".
  note: Vita.
  note: Also available online.
  note: Issued also on microfiche from Lange Micrographics.
  note: M.S. Texas A&M University 2002
  note: Includes bibliographical references (leaves 234-238).
  subject:
    topic: Major mechanical engineering
  identifier: https://hdl.handle.net/1969.1/ETD-TAMU-2002-THESIS-P75
  related item:
    location:
      url: https://hdl.handle.net/1969.1/ETD-TAMU-2002-THESIS-P75
  record info:
    record content source: TXA
    record creation date: 030716
    record change date: 20220103134517.0
    record identifier: in00001763875