1. IBL CO 2 cooling planning 03 July 2013 Jan Godlewski, Bart Verlaat, Lukasz Zwalinski 1 bverlaat@nikhef.nl

2. IBL CO 2 cooling sub units Several sub projects all with their own planning –Fluid systems: CO2 circulation plants (2x) CO2 accumulator Unit (1x) R404a chiller units (2x) Vacuum transfer line (97m) Junction box (1x) Manifold box (2x) Flex lines (14x) –Support systems Vacuum system –Electronics CO2 control cabinets (2x) Maintenance control cabinet (1x inside accu unit) Chiller control (2x, inside chiller units) Vacuum control cabinet (1x) 2 Inside USX Inside USA

3. Pump Assembly and commission approach Cooling system commissioning will be done via the junction box dummy load. Target for hardware installation =>September - December 2013. 1 st circulation before xmas (cooling the xmas Champaign bottle!) Commissioning campaign January- April 2014 IBL cooling connection after IBL installation Cold tests with IBL from June to September 3 Cooling plant (2x CO2 + 1x accu + 2x chiller) Transfer line Junction box Manifold box Flex lines 3kW dummy heater

4. Current focus Current focus is on the hardware needed for junction box commissioning. –Fluid systems: CO2 circulation plants (2x) CO2 accumulator Unit (1x) R404a chiller units (2x) Vacuum transfer line (97m) Junction box (1x) Manifold box (2x) Flex lines (14x) –Support systems Vacuum system –Electronics CO2 control cabinets (2x) Maintenance control cabinet (1x inside accu unit) Chiller control (2x, inside chiller units) Vacuum control cabinet (1x) Commissioning is a length process: –Tuning of PID parameters –Make it work in full phase space of temperature and heat load –Test procedures like start-up, switch over, standby, back-out. 4 Needed for junction box commissioning Needed after IBL installation

5. Road to CO2 circulation Rough schedule of units (Everything will be directly installed in the pit): –CO2 plants: Nikhef delivery begin of September. Activities: Cabling and IO checks Possibility of local CO2 circulation using fill bottle as accumulator and small chiller as condenser –Accumulator unit end of September: Activities: Cabling and IO checks CO2 filling for specific accu tests –Chiller units delivery half October Activities: Cabling and I\O checks Direct connection to CO2 plant, circulation for test possible –Transfer line installation: 4 weeks in October –Installation of Junction box in October –Inter connection of units with orbital welding in November –1 st circulation of Junction box in December. See detailed planning in Excel file in this meetings indico. 5

6. Road to IBL cooling Commissioning via junction box and dummy load (January to April 2014). –Test all procedures –Tune parameters –Long duration testing During junction box commissioning focus on other hardware like –Vacuum system –Flex line integration –Manifolds IBL installation in March 2014 IBL to cooling connection in April-May 2014 –Flex lines will be installed after the IBL is in. IBL with cooling commissioning: June to September 2014 Beam pipe back-out October 2014. –When still alive IBL with cooling is ready for physics! See detailed planning in Excel file in this meetings indico. 6