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Thermal Blitz


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

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Thermal Blitz

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