Hi Luke,
We also use water/water heat exchangers on all of our equipment (building
chilled water for heat exchange, and a closed water loop for our equipment).
We have various sized Haskris heat exchangers (two smaller units on each of
our cryoprobe compressors, and a larger one for our water cooled He recovery
equipment).
We have a fairly reliable chilled water source in the building (which has its
own backup), although it does seem to go down once or twice a year. The
only major problem we've dealt with is debris getting into the building line
and clogging the heat exchanger "brick". This is fairly easy to
fix by using some back-flow and blowing out the debris.
We also installed some strainers on the building water inlet. These are
nice since they allow us to open a valve and flush out some debris without
dismantling the setup.
We also have pressure/temperature sensors on the water lines as well as the
heat exchanger water baths. I would highly recommend it for monitoring
the equipment.
Best,
Samrat Amin
Magnetic Resonance Research Center
Arizona State University
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Received on Wed Jul 30 2025 - 09:03:55 MST