Difference between revisions of "Minutes-4-12-2012"
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== Production == | == Production == | ||
− | - Dave: | + | - Dave: working on cathodes #44 and #45 for the fourth package, tension measurements today on wire plane #25 (second for fourth package), three wire planes waiting for deadening. The foil of the end window #10 (that was wavy) was removed: it turned out, by unknown reasons, the epoxy didn't cure after many days and the surface was still tacky. New foil will be tensioned. |
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== Results from the oxygen studies == | == Results from the oxygen studies == | ||
− | - Lubomir | + | - Lubomir: now performing oxygen measurements at Blue Crab; Brooks gas system with two flow controllers and the oxygen sensor were moved there. |
- Eugene: what's the acceptable oxygen level; must be <0.05%, but in the prototype we had ~0.1% and was still operational. Assuming we will have ~300ppm per cell at 200cc/min then we will have 1800ppm for the whole package, but if operating at 400cc/min for the whole package it will be 900ppm or 0.09%. However, for this estimation we have to subtract the contribution from the oxygen in the supply gas. More realistic estimation can be done at Blue Crab with the real package. | - Eugene: what's the acceptable oxygen level; must be <0.05%, but in the prototype we had ~0.1% and was still operational. Assuming we will have ~300ppm per cell at 200cc/min then we will have 1800ppm for the whole package, but if operating at 400cc/min for the whole package it will be 900ppm or 0.09%. However, for this estimation we have to subtract the contribution from the oxygen in the supply gas. More realistic estimation can be done at Blue Crab with the real package. |
Revision as of 17:10, 12 April 2012
April 12, 2012 FDC meeting
Agenda
- Production Construction Tracking (Dave)
- Production status
- Results from the oxygen studies (Lubomir)
- First production cell with Viton O-rings
- New tests with EPDM
- Engineering update (Bill)
- Frame deformations with new O-rings Ansys results,Ansys results
- Electronics update (Chris)
- Other