Chilling systems rely on coolants to effectively and efficiently remove heat from objects or fluids. When extreme temperatures are expected, Glycol-based coolants are often added to water in order to further improve heat removal capabilities through a Glycol chiller. Glycols provide an anti-freeze effect, enabling the chiller to operate close to the freezing point of water without actually reaching it – Propylene Glycol provides a freeze point of 7°F or -14°C when mixed at a 30% volume ratio with water. The comparative low heat capacity of Glycol relative to that of water means that mixtures low in Glycol can still achieve a good cooling performance due to the wider temperature differential created than if just pure water had been used instead. What Is The Process a Glycol Chiller Takes? Glycol chiller systems are a vital component of any cooling system, such as in draft beer systems, as they are capable of efficiently removing heat from a liquid to then be used for cooling. By circulating the coolant through a heat exchanger, these Glycol chillers can aid in reducing the risk of damage or harm due to overheating and help maintain precise temperatures needed in all kinds of applications in food or beverage processing and storage. The Propylene Glycol refrigerant in the chiller forms an effective heat exchange by absorbing thermal energy from your process and then converting the refrigerant into gas. This gaseous refrigerant is directed to a condenser where its heat is expelled through evaporative condensation, cooling the refrigerant back down into a cooler gas and liquid mixture. The cooled-down mixture is then sent back to the process heating source, completing the cycle. By using this method, chillers are able to maintain sustained temperatures for any type of process. When it comes to Glycol chillers, remember that Glycol is used as the primary source of cooling, making them an ideal choice for those who want safe and reliable results with minimal energy consumption. Moreover, it is important to note that the efficiency of these systems depends on their components such as compressors, evaporators, condensers, and electric control systems which are designed based on the needs of respective users. It’s certainly one of our top considerations with our custom draft beer system designs. The Ratio of Water to Glycol to Use in a Glycol Chiller Choosing the right ratio of Propylene Glycol to water for a refrigeration system is critical – too much Glycol reduces efficiency, but without enough the system could be at risk of freezing and its pipes bursting. The most effective way to determine the optimal ratio is by calculating peak cooling loads and referring to industry standards for respective differences. By selecting an exact mixture based on these measurements, a chilled water system can run smoothly, with no danger of loss or defect. We at Glacier are happy to assist with determining this perfect amount, as we know it is particularly complicated. The Use of a Glycol Chiller with Beverages The Glycol chiller system offers restaurants a highly effective solution to maintain full control over the process of cooling beverages. Not only can it quickly lower temperatures to desired levels, but it also allows businesses like yours to easily regulate those temperatures over prolonged periods. Investing in a reliable Glycol chiller and controlling your beverages’ temperature helps ensure an exceptional taste that captures the degree of quality sought by even the most discerning drink connoisseurs. At Glacier, we are happy to provide preventative maintenance on your Propylene Glycol units, or even assist in their installation. Let us help ensure your investment into this vital piece of equipment is one that brings in dividends for years to come.