Thermosiphon meeting

Thursday 20 Feb 2014, 10:00 → 12:05 Europe/Zurich

298/1-003 (CERN)

Michele Battistin (CERN)

10:00 → 10:20 TS Condenser status report

Speaker: Michele Battistin (CERN)

10:20 → 10:40 Brine pump repair status report

Speaker: Pierre Bonneau (CERN)

10:40 → 11:00 Commissioning status report

Speaker: Lukasz Zwalinski (CERN)

11:00 → 11:10 Action List

Condenser repair: waiting for repair procedure 14/2/2014. Brine pumps repair: pumps opened: two bearings are broken on the magnetic coupling Possible cavitation problem: Install a PT on the subjoin of the pump Move the desy filters ut of the circuit Increase the pressure of the expansion tank Prepare a DN200 pipe to improve the volume of the liquid tank (nothing to do with the pump problem). Commissioning: all what could be done has been done. The commissioning team is stopped now. Water P&ID: the P&ID. Cecilia ti change the yellow color that is not visible on the print. Water circuit: completed. Expansion tank has a too high pressure. Cabling: the cable tray on the roof is protected for 3/4: to be completed. Cyril and Jan to ask Mito, Michail and Juri. Cabling missing: - sonar system. TT on the pit Red telephone (Olivier). One general alarm signal (Olivier). Condenser: Reparation running. waiting for repair procedure from DATE -> before Friday 14/2. 3D drawing of the repair steps from Cyril. Pneumatics: DONE (a part degassing system) Vacuum: pump installed and connected. Electrical connection is missing. C6F14 pipe: pumps are missing: under repair to GrosClaude Triac problem to be solved by Florian. Waiting fro the liquid inside the ducts. C3F8 Water available on the balcony Glicol to be moved and filled in the balcony unit: today 13/2/14. filters and dryers to be installed. Lagging: postponed to condenser to be back Tchuflian shall wait for the final connection to the condenser of the C6F14. Chiller: Two platforms shall be installed to work at the level of the EL cabinets of the chiller: Cyril to design and build them. Etiquettes: Pierre is filling the Infor database on excel format -> NO ADVANCEMENT SINCE 17/10/2013 Claudio to retrieve the information from Stefano Moccia concerning Water circuit. Claudio started entering the information for the chiller. Etiquettes for external installation to be done. Hard etiquettes shall be produced (Claudio). From the beginning of next year on. Civil Engineering: Fix the pipe passages on the walls on different locations: Olivier will check the holes. Ask Eliseo concerning the roof on the condenser: roof is ready. Waiting for last calculation of the structure with roof, snow and earthquake + HSE verification. Documentation: all docs on EDMS. Control: Stephane will start working on TS from April flu time! Welcome to Steph! Daniel will join the team from May on. Lucaks to modify the PLC finctional analysis. To be rev owed with Olivier + Jan + Michele on 14/2/14. Thermosiphon PLC program is ready: Benjamin presented the synoptics. Monday 18th we will se the simulator. J&E Hall intervention: it shall be postponed to April 2014! Michele has contacted J&E Hall to postpone the commissioning Michele to write the report of the phone call AoB: 2 kW TS dismantling is running: Juri and Michail.

11:10 → 11:20 Any Other Business

Speakers: Claudio Bortolin (Universita e INFN (IT)), Cyril Degeorge (Indiana University (US)), Daniel Lefils (CERN), Florian Corbaz (CERN), Gregory Hallewell (Centre National de la Recherche Scientifique (FR)), Jan Godlewski (CERN), Lukasz Zwalinski (CERN), Olivier Crespo-Lopez (CERN)