Characterization of open-cycle coal-fired MHD generators. Quarterly technical summary report No. 6, October 1--December 31, 1977. [PACKAGE code] Metadata

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  • Main Title Characterization of open-cycle coal-fired MHD generators. Quarterly technical summary report No. 6, October 1--December 31, 1977. [PACKAGE code]


  • Author: Kolb, C.E.
    Creator Type: Personal
  • Author: Yousefian, V.
    Creator Type: Personal
  • Author: Wormhoudt, J.
    Creator Type: Personal
  • Author: Haimes, R.
    Creator Type: Personal
  • Author: Martinez-Sanchez, M.
    Creator Type: Personal
  • Author: Kerrebrock, J.L.
    Creator Type: Personal


  • Name: Aerodyne Research, Inc., Bedford, MA (USA)
    Place of Publication: United States


  • Creation: 1978-01-30


  • English


  • Content Description: Research has included theoretical modeling of important plasma chemical effects such as: conductivity reductions due to condensed slag/electron interactions; conductivity and generator efficiency reductions due to the formation of slag-related negative ion species; and the loss of alkali seed due to chemical combination with condensed slag. A summary of the major conclusions in each of these areas is presented. A major output of the modeling effort has been the development of an MHD plasma chemistry core flow model. This model has been formulated into a computer program designated the PACKAGE code (Plasma Analysis, Chemical Kinetics, And Generator Efficiency). The PACKAGE code is designed to calculate the effect of coal rank, ash percentage, ash composition, air preheat temperatures, equivalence ratio, and various generator channel parameters on the overall efficiency of open-cycle, coal-fired MHD generators. A complete description of the PACKAGE code and a preliminary version of the PACKAGE user's manual are included. A laboratory measurements program involving direct, mass spectrometric sampling of the positive and negative ions formed in a one atmosphere coal combustion plasma was also completed during the contract's initial phase. The relative ion concentrations formed in a plasma due to the methane augmented combustion of pulverized Montana Rosebud coal with potassium carbonate seed and preheated air are summarized. Positive ions measured include K/sup +/, KO/sup +/, Na/sup +/, Rb/sup +/, Cs/sup +/, and CsO/sup +/, while negative ions identified include PO/sub 3//sup -/, PO/sub 2//sup -/, BO/sub 2//sup -/, OH/sup -/, SH/sup -/, and probably HCrO/sub 3/, HMoO/sub 4//sup -/, and HWO/sub 3//sup -/. Comparison of the measurements with PACKAGE code predictions are presented. Preliminary design considerations for a mass spectrometric sampling probe capable of characterizing coal combustion plasmas from full scale combustors and flow trains are presented and discussed.
  • Physical Description: Pages: 217


  • Keyword: Fuels
  • Keyword: Charged Particles
  • Keyword: Manuals
  • Keyword: Electron Attachment
  • Keyword: Computer Calculations
  • Keyword: Mathematical Models
  • Keyword: Document Types
  • Keyword: Efficiency
  • Keyword: Computer Codes
  • STI Subject Categories: 014000 -- Coal, Lignite, & Peat-- Combustion
  • Keyword: Spectroscopy 300104* -- Mhd Generators-- Duct Engineering & Fluid Dynamics
  • Keyword: Mhd Generators
  • Keyword: Magnetohydrodynamics
  • Keyword: Plasma Diagnostics
  • Keyword: Fluid Mechanics
  • Keyword: Slags
  • STI Subject Categories: 30 Direct Energy Conversion
  • STI Subject Categories: 01 Coal, Lignite, And Peat
  • Keyword: Direct Energy Converters
  • Keyword: Coal
  • Keyword: Ashes
  • Keyword: Electric Conductivity
  • Keyword: Physical Properties
  • Keyword: Combustion Products
  • Keyword: Mass Spectroscopy
  • Keyword: Flow Models
  • Keyword: Electrical Properties
  • Keyword: P Codes
  • Keyword: Coal-Fired Mhd Generators
  • Keyword: Ions
  • Keyword: Mechanics
  • Keyword: Hydrodynamics
  • Keyword: Anions
  • Keyword: Open-Cycle Mhd Generators
  • Keyword: Residues
  • Keyword: Fossil Fuels
  • Keyword: Energy Sources
  • Keyword: Seed-Slag Interactions
  • Keyword: Systems Analysis
  • Keyword: Vapor Condensation
  • Keyword: Cations
  • Keyword: Carbonaceous Materials


  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI


  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report


  • Text


  • Report No.: ARI-RR-116
  • Grant Number: EX-76-C-01-2478
  • DOI: 10.2172/6440551
  • Office of Scientific & Technical Information Report Number: 6440551
  • Archival Resource Key: ark:/67531/metadc1207188


  • Display Note: Dep. NTIS, PC A10/MF A01.