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Stave After 1st T Cycle

This report describes the cooling process of stave modules in a freezer and compares the performance of each module before and after irradiation.

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Stave After 1st T Cycle

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  1. Stave After 1st T Cycle • Stave placed in freezer - see temperature plot next page • Operating conditions • Flow - 1.03 l/min • Inlet temp - 21.0 degrees • Differential pressure - 5.08 psi • Power/module = 7.0 to 7.1 watts • Platinum apparently scraped off of modules 2 and 6 during paint removal cycles, open so no heat load on these. Will attempt to repair later. • This makes comparison not so simple since total heat load is affected. • Also note ambient temperature warmer than before. Set up was moved to different room. • Nevertheless looks OK after 1st cycle. • Setting up to do faster cycling using LN2 but have to see if this works

  2. Cool Down in Freezer

  3. Before Irradiation After 1st Temp. Cycle After 1st irradiation After 2nd irradiation

  4. Module 1 - Before Module 1 - After

  5. Module 2 - Before Module 2 - After

  6. Module 3 - Before Module 3 - After

  7. Module 4 - Before Module 4 - After

  8. Module 5 - Before Module 5 - After

  9. Module 6 - Before Module 6 - After

  10. Module 7

  11. Module 8

  12. Module 9

  13. Module 10

  14. Module 11

  15. Module 12

  16. Module 13

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