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Description of the thermal blitz procedure used to access the H.H. cell heat balance

Description of the thermal blitz procedure used to access the H.H. cell heat balance

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Thermal Blitz Presentation Transcript

  • 1. Thermal Blitz
    • Hukseflux Heat flow meters and probes used in a thermal blitz
  • 2. Thermal Blitz
    • Old Kyoto-KEM Heat flow meters and probes used in a thermal blitz
  • 3. Thermal Blitz
    • Assessing the thermal balance of a cell by measuring heat fluxes
  • 4. Thermal Blitz
    • Up to 200 positions on the cathode shell and cradles are measured
  • 5. Thermal Blitz
    • Up to 60 positions on the anode panel (prebaked example) are also measured
  • 6. Thermal Blitz
    • Measurements are then transfer into an Excel spreadsheet
    • 6 side slices and 4 end slices measurement are transfer for the cathode part
  • 7. Thermal Blitz
    • The Excel spreadsheet is used to perform heat flux averaging
  • 8. Thermal Blitz
    • The measurement of 6 anodes are also transfer to the spreadsheet
    • which performs the flux averaging similarly to the cathode part
  • 9. Thermal Blitz
    • For each surfaces, the average heat flux is multiply by the surface area in order to obtain the surface heat loss.
    • The summation of all the surfaces heat losses gives the total cell heat loss.
    • By using a spreadsheet, the blitz results are available as soon as the measurements are transferred into it.
  • 10. Thermal Blitz
    • To be judge reliable, the cell heat loss measured in a thermal blitz must be comparable with the assessment of the cell internal heat.