THE GLACIER JOURNAL

A clearer view.
A better decision.

Ideas, explanations and practical questions for the people behind thermal systems.

Process cooling

6 articles

Insulated thermal oil pipework with a warm industrial glow, suggestive of high-temperature process heating

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.

September 11, 20266 min read

Industrial pipework being drained during a coolant changeover procedure

Process cooling

Switching your secondary coolant: what to confirm before you drain the loop

Changing a secondary coolant is more than draining and refilling. Confirm compatibility, the cleaning method and the first monitoring window before you start.

September 11, 20267 min read

A laboratory beaker with a pH probe, illustrating coolant fluid analysis

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.

September 11, 20267 min read

Technical equipment illustrating an industrial cooling system under maintenance

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 the catalogue specifies and what to confirm first.

September 11, 20266 min read

Industrial pumps and coolant pipe manifolds in a mechanical room

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.

September 11, 20266 min read

An LM-8 labelled sample flask containing yellow-green coolant

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.

September 10, 20263 min read

A clearer view.
A better decision.

Process cooling

Above 200 °C, heat pumps stop and thermal fluids take over

Switching your secondary coolant: what to confirm before you drain the loop

When should I change my coolant? A guide to degradation thresholds

Coolant maintenance: what to test, how often, and when to top up

Pumping energy, not heat capacity, decides a low-temperature coolant

Glycol-type or organic-salt coolant? A practical comparison

Your process is specific.
Your coolant should be, too.

A clearer view.
A better decision.

Process cooling

Above 200 °C, heat pumps stop and thermal fluids take over

Switching your secondary coolant: what to confirm before you drain the loop

When should I change my coolant? A guide to degradation thresholds

Coolant maintenance: what to test, how often, and when to top up

Pumping energy, not heat capacity, decides a low-temperature coolant

Glycol-type or organic-salt coolant? A practical comparison

Your process is specific.
Your coolant should be, too.

Process cooling

Above 200 °C, heat pumps stop and thermal fluids take over

Switching your secondary coolant: what to confirm before you drain the loop

When should I change my coolant? A guide to degradation thresholds

Coolant maintenance: what to test, how often, and when to top up

Pumping energy, not heat capacity, decides a low-temperature coolant

Glycol-type or organic-salt coolant? A practical comparison

Your process is specific.Your coolant should be, too.

Process cooling

Above 200 °C, heat pumps stop and thermal fluids take over

Switching your secondary coolant: what to confirm before you drain the loop

When should I change my coolant? A guide to degradation thresholds

Coolant maintenance: what to test, how often, and when to top up

Pumping energy, not heat capacity, decides a low-temperature coolant

Glycol-type or organic-salt coolant? A practical comparison

Your process is specific.Your coolant should be, too.

Your process is specific.
Your coolant should be, too.

Your process is specific.
Your coolant should be, too.