I am experiencing a lot of water pickup in my heat transfer fluid causing ice buildup and reduced cooling capacity. A nitrogen blanket helps, but isn’t solving the problem.
Does anyone have any experience utilizing desiccants in chillers or have a low temperature heat transfer fluid that they are happy with?
Is it a sealed system under pressure?
Or is it vented? You can always add a desiccant vent if it’s not a sealed system.
Either way you need to remove all the moisture and it’s pretty easy to do with the right plumbing.
On my low temp chillers I had to add a filter that I can bypass the flow through to catch the ice that will form during the first start after opening the system to atmosphere for any period of time.
I will run my chiller through the bypass past a 20 micron filter for a few hours at -10c to capture all the ice. After that I pull out the filter and smack the filter on the ground and you’ll see how much ice was in the system.
Huber has a setting to boil the moisture out of the system
Lauda units have that setting as well. It’s just essentially a boil off program.
@thesk8nmidget that’s an awesome method
