Handling Low Fluid Temperatures
Glycol-water mixtures should be used to protect chillers and dry coolers against freezing in applications requiring low fluid temperatures and/or in outdoor installations. Pre-mixed solutions are available in various concentrations, based on the lowest expected temperature. The type of glycol (ethylene or propylene) and concentration must be considered upfront to ensure proper performance in terms of heat transfer and fluid flow. Inhibited glycols contain additives to provide corrosion protection in fluid systems that are not non-ferrous.
