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v3.3.2-pre
Questions raised by Paola:
- detector power and flow requirements are correct
- update of detector requirement doc (where needed)
- common T set point for operation in backup
- all system is qualified for design pressure of 130 bar, i.e. testing pressure of 187 bar
- all sub detectors will provide via DIP a “reading Temperature” which will be used at cooling system startup to initiate circulation at that T
Questions raised by Simone:
- Is it admitted to use Swagelok ferrule compression system to mount the detector cooling circuit?
- What alternative solution if we don't use the valves?
- We propose a simple T and P sensor location on the main CO2 flow. Could we have any control if the measurements indicate not perfect values?
- Are these signals usable from the control system ? Could we have any control if the measurements indicate not perfect values?
- Etc.
Explanations regarding the operation modes for MAUVE
The aim is to get a better understanding in the UT group for the standard operation modes of the cooling plant, but also for the implications when operating jointly VELO and UT from the same plant.
What are the implications for adding a Back Pressure Regulator or an Impedance in the cooling system?
We have to make sure that we don't operate the detector for an extended period of time (>1h) at very low temperature (<-10 oC) when the electronics are off.
Explain the operating modes for the standard LUCASZ plant and how could un upgrade of the standard LUCASZ look like (without going to a full local box) to ease UT detector commissioning?
When installing and commissioning the staves, we have frequent cycles in which the electronics are turned on and some cooling is needed for test purposes of a few staves. The system needs then to be emptied again to allow for the installation of further staves, followed by a repetition of the test cycle. How to ease this commissioning phase?