CTF TestLab Coordination Meeting Nov 09, 2016
Attendance
Creel, Wright, Saringer, Davis, Kushnick
Asked But Did Not Attend
Daly, Reily
Agenda and Notes
1. CTF Capacity
CTF is a variable capacity machine producing up to 750W at 4.5K and 800W at 35K temperatures and up to g/s of liquefaction capability. It also uses warm vacuum pumps to provide up to 10 g/s of 2.1K capacity. The plant has a liquid helium storage capacity of up to 10,000 liters at 4.5K.
3. Loads
Currently their are two primary loads connected to the CTF plant, the VTA, and the CMTF. The UITF will also be connected sometime in the spring.
2. Reliability
Operating CTF at higher capacities effects availability.
3. Topics of this meeting
A) Improving the daily start time that VTA dewars can begin filling (getting the cold stuff here earlier in the morning)
One possibility is to set up a piece of code that would allow a button to be pushed and a time entered where the computer would automatically start a cooldown of the line before Pete arrives in the morning. This would live on the cryo PLC and only need variables that are on the cryo system. In the short term Bob Bennett will perform this function. In the medium term we will write a piece of code to perform this function.
B) Technical path to fully automated VTA dewars fill/pumpdown
We will schedule a follow up meeting to discuss the constraints that will need to be implemented for item B.
C) Maintenance items for which we would like to request cryo help (arc cell installation, pair pump oil addition)
We need to meet in the VTA and make a plan to install the new arc cell.
D) Lessons learned from past cryomodule cooldowns and warmups
We have standard configuration procedures for CM in and CM out of the cave. We need to remind the CM test folks to minimize heat when they are not testing.
Action Items
Attendees will notify cryo of any changes to the plan or changes to the operating conditions including any new tests.
Action Item Updates
1. Cryo would like to track the transfer efficiency.
2. We will schedule a follow up meeting to discuss the constraints that will need to be implemented for item B.
