Hi Luke
As you know, we’ve had good luck using a water-to-water ’cooler’ to
isolate from the building’s/campus chilled water line. You are still subject to
system outages and fluctuations. However, you will also need to service any chiller you install.
Cost was under $10k plus the plumbing (and flow and pressure meters as well as in-line thermometer)
from the chilled water line to the water-to-water cooler.
BTW, if they say the water is clean, don’t believe them. The reliable test is done
over time at the point your device pulls from the chilled water line.
Keep up the good work!
Marc
My work day may differ from your work day. Please do not feel obligated to
respond outside your working hours.
Marc ter Horst (he/him/his)
Research Professor
NMR Laboratory
056 Caudill Labs
Department of Chemistry, CB #3290
UNC at Chapel Hill
Chapel Hill, NC 27599-3290
e-mail: terhorst_at_unc.edu
NMR Lab: (919) 962-1149
Office: (919) 843-5802
> From: main_at_ammrl.groups.io On Behalf Of Fulton, Luke via groups.io
> Sent: Tuesday, July 29, 2025 12:27 PM
> To: main_at_ammrl.groups.io
> Subject: [AMMRL] Coolant for He Compressors
Hi all,
I'm planning end-of-life transition for our chilled water recirculator which
services two helium compressor cold heads. The main unit sits in a hallway
just outside the lab, and the building's design doesn't allow for putting
it anywhere else.
1) Any recommendations for vendor or chiller type? I'm also interested in general
quotes (feel free to message me privately with any insights on what
we might expect).
2) Some in my department are pushing for integrating into the chemistry building's
existing chilled water network. I've not heard of labs choosing this approach,
and my impression is endless complications from algae and other sundry building
issues. Anyone seen success with this? Or is it one of those
39-and-a-half-foot-pole topics?
Kind regards,
Luke
Luke Fulton, PhD
CHEM BLDG R003
NMR Core Facility Director
Unit 3060
COR2E & Department of Chemistry
55 N Eagleville Road
University of Connecticut
Storrs, CT 06279
email: fko24003_at_uconn.edu<mailto:fko24003_at_uconn.edu>
(alias): luke.fulton_at_uconn.edu<mailto:luke.fulton_at_uconn.edu>
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Received on Tue Jul 29 2025 - 11:52:41 MST