Process cooling
Why the refrigerant phase-down puts more secondary loops in your plant
As HFC quotas shrink, plants move to ammonia, CO2 and flammable refrigerants. Those gases stay in the plant room, so a secondary coolant carries cooling out.
THE GLACIER JOURNAL
A clearer view.
A better decision.
Ideas, explanations and practical questions for the people behind thermal systems.
Process cooling
13 articles
Process cooling
Brine cooling systems: why chloride attacks the loop, and how to control it
Calcium chloride brine is efficient and severely corrosive. Compare it with modern secondary coolants at the same freezing point, and see how inhibitor programmes work.
Process cooling
Can I mix two coolants, or top up with a different fluid?
Mixing is prohibited across most Glacier families for a reason. See what blending does to inhibitor packages and what a correct top-up looks like.
Process cooling
Spill and fire response: two coolant families, two procedures
Not every heat transfer fluid responds to a spill the same way. See why one group is diluted with water and the other needs detergent, and what to check first.
Process cooling
Food-grade and agricultural secondary coolants: what the label does and does not mean
Food-industry duty and food-contact approval are separate questions. See which coolant families suit food and agricultural duty, and what to confirm first.
Process cooling
Indirect refrigeration design for cold storage: the fluid decisions
Cold storage loops are built around indirect secondary cooling. See how fluid choice, concentration and temperature drive pump sizing, materials and running cost.
Process cooling
Why do anhydrous coolants need a dry loop, nitrogen and no mixing?
Anhydrous coolant families need a dry, closed loop, nitrogen protection and no mixing. What those three instructions mean — and what they do not specify.
Process cooling
Above 200 °C, heat pumps stop and thermal fluids take over
Industrial heat pumps are commercialised to about 200 °C. For processes above that, thermal oils and silicone fluids are still the default heat transfer route.
Process cooling
Switching your secondary coolant: what to confirm before you drain the loop
Changing a secondary coolant or thermal fluid is more than draining and refilling. Confirm compatibility, the cleaning method and the first monitoring window.
Process cooling
When should I change my coolant? A guide to degradation thresholds
Published condemning limits for heat transfer fluids contradict each other. Learn how to read the trend, not the threshold, before deciding to change a charge.
Process cooling
Coolant maintenance: what to test, how often, and when to top up
Brine inhibitors, cooling-water treatment and alcohol-coolant additives follow different schedules. See what applies to each and what to confirm first.
Process cooling
Pumping energy, not heat capacity, decides a low-temperature coolant
Low-temperature secondary coolants differ only slightly in volumetric heat capacity, yet their pumping demand can differ by an order of magnitude.
Process cooling
Glycol-type or organic-salt coolant? A practical comparison
Compare Glacier LM-4 and LM-8 coolant families by chemistry, model selection, materials and documentation—not generic performance or safety assumptions.