CMS cooling operational model
P. Tropea for the CMS cooling team
(J. Daguin, V. Delachenal, G. Fetchenhauer, N. Frank, J-F.
Pernot, D. Deyrail, E. Albert)
Tracker cooling operation and maintenance plan review
16 April 2010
CMS cooling operation & CMS cooling team role
CMS cooling team: a group of engineers & technicians from PH-CMX and PH-DT,
with the mandate of supporting the CMS cooling users and the CV team in their
activities for the CMS cooling systems
CMS
subdetectors
Whishes for changes
in the existing system,
upgrades….
CMS
Technical
Coordination
Long term plans,
setting priorities,
checking costs…
Activity planning
CMS cooling
team
CMS
EAM
Demands for
improvements, share
of info on
performances,
organization of
maintenance activities
CMS
Technical
Shifter
Doubts concerning DCS
readings, alarms
EN/CV
Activity planning
16 April 2010
P. Tropea
2
Support to the users
• Coordination of CV activities with the users and the TC
• Collection and analysis of requirements for consolidation
or upgrade works, to be reported to CV for feasibility
studies
• Support to the DCS for infrastructure monitoring
implementation
• Monitoring of cooling system performances, in
collaboration with users and EN/CV, writing monthly
reports on perfluorocarbon cooling system performances
(checked by EN/CV and distributed to users)
• Participation to TC and subdetectors operation meetings
• Regular meetings “CMS cooling” (Indico)
• Weekly meetings with EN/CV/DC
16 April 2010
P. Tropea
3
CMS cooling expert on call
During working hours, a CMS cooling expert on duty can be
reached by technical shifters, users, CV, etc. at 163021. The
expert on call role is:
• Make a first diagnose on the cooling system behavior and
evaluate the need for a call to CV (using DCS views & CV/DC
supervision)
• Coordinate the corrective maintenance activities and provide
technical support to CV whenever demanded
• Adjust, on user request, the cooling set points for the
fluorocarbon cooling plants (T, p, flow)
• Report on e-logs any intervention
16 April 2010
P. Tropea
4
Operation and maintenance
Geographically, CMS responsibilities on cooling systems
- For fluorocarbon circuits: the cooling loop serving the detector
after the manifold valves in UXC
- For water circuits: all the circuit part in UXC + the rack
distribution in USC
The CMS cooling team takes care of:
• Organize the documentation (working space pointing to EDMS is
being created)
• Write the procedures for the cooling system operation
• Organize a storage area & spare parts
• Execute maintenance (corrective and preventive) activities on that
part of the circuit (repair leaky flexibles, change purgers, clean
filters…) and document the activities
• Provide technical support for any other intervention, under the
request of CV
16 April 2010
P. Tropea
5