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Updated 02/11/2025
6

Chilled water issues

Two possible solutions:

  • Keep low conductivity of the water - replace the water systematically


  • Ground all metal parts of the cooling water closed loop to ensure equal potentials - the best solution
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The project addresses instability in the dissolution of tantalum (Ta) anodes in hydrofluoric acid (HF), where hydrogen gas generated during the reaction becomes trapped in the solution, forming foam that disrupts the process and creates safety risks. Using the PRIZ Platform, a Functional Model of the system was developed. The model revealed that the HF solution is both the most functional and the most problematic component, leading to a physical contradiction: HF must interact with Ta anodes to enable dissolution, but must not retain the hydrogen gas produced during the reaction. Applying the PRIZ principle of Separation in Space, two reactor concepts were proposed: a spray interaction reactor, where HF is pumped to spray onto anodes placed above the solution, and a surface wetting reactor, where anodes are positioned at the top of the solution, allowing natural circulation and easy hydrogen release. Both designs eliminate foam formation and provide a stable, controllable, and safer dissolution process.

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?כיצד נוכל למנוע הצטברות של אדים על גבי העדשה בתנאי סביבה שונים כדי לשפר את הראייה והבטיחות

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