with a high probability we will get some cryoprobes (presumable 3)
within the
couple of the next year.
Now I have to solve the technical problems to install these devices.
There is one main problem:
where shall I install the compressors?
To my informations one of the compressors needs 9 kW of electrical
power.
That's why I have a problems concerning the heat production.
Of course, I believe, it's helpful to discuss all of the problems with
the
specialists in Faellanden and of course I will do this next time.
Nevertheless there could be some good ideas here. Maybe others have
comparable problems and we could ask the developers to introduce
some changes into the concept.
So please allow to come back to the primary problem: a convenient place
for the compressors. An ideal place to install the compressors would
be available in a distance of about 70 meters from the spectrometers.
Even more, there exists a system of helium tubes within the building
(70 mm id), which could be used for the transport of the normal
pressured helium. The specialists say: too long.
The above mentioned location furthermore allows an autarc cooling of
the compressors. In the case of all other possible locations I need
water cooling (no room is able to remove 9 kW by air cooling).
We have a closed water cooling circuit within the building, but the
capacity of this circuit is about only 540 kW for the whole building.
Even more, for about 10 days in the summer the capacity of this
water cooling circuit is insufficient (without the compressors).
That are my first thoughts and of course they are somewhat fragmented.
Now I am looking for other ideas or even better experiences.
Best regards
Rainer Haessner