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Using glycol in your chiller may prove to be beneficial because it reduces the freezing point of process fluid and ensures that it continues to flow at the operating temperature. Using inhibited glycol in your system will prevent scale and corrosion from forming, algae and bacteria will not grow and metals such as copper, brass, steel cast iron and aluminum are protected. However, there are some things to know when using glycol in your chiller that if not followed properly, problems may follow.
1 &#;Don&#;t Use Automotive Grade Anti-Freeze!
Do not use automotive grade anti-freeze. Automotive glycols are not designed for industrial applications any may foul the heat exchanger and compromise heat transfer
2 &#;Don&#;t Mix Glycols!
Do NOT mix different types or brands. Mixing of glycols can often result in clogged filters or gelling. If switching types or brands you will need to thoroughly clean the system to remove the current fluid. Once it is thoroughly flushed, it is perfectly fine to change the type of brand.
3 &#;What is the Difference Between Ethylene and Propylene ?
Glycol comes in two varieties: ethylene glycol (EG) and propylene glycol (PG). Though both materials are bad for living things, ethylene is most often used in industrial applications and is more economical and propylene becomes more viscous at very cold temperatures and is most often used near food.
4 &#;What are the Affects on my Chiller?
Glycol is denser than water and the cooling capacity will be slightly reduced which will in turn increase the pumping power and the fluid temperature will increase.
5 -Applications and Locations Determine Water/Glycol Mix Percentages
When determining the percentage of water/glycol mix the location and environment of the chiller (indoors vs. outdoors) is the determining factor. If your chiller will be located indoors with zero (or no) chance of freezing, the percentage of glycol lessens. If the chiller is located outside with low temperatures the percentage of glycol will be greater. Applications that have a very low operating temperature(below 20°F) should use a glycol mixture that is similar to an outdoor system.
The location of the chiller and environmental concerns must be taken into account when selecting the proper mixture of glycol and water for the chiller process. A process located completely indoors, with no chance of freezing, will require less glycol than a system located outdoors where low temperatures can cause the fluid to freeze and piping to burst. Applications with a very low operating temperature (below 20&#; F) should use a glycol mixture equivalent to an outdoor system.
6 -Fluid Maintenance and Filtration.
The secret to extending the life of your chiller and reducing costly down-time is utilizing a fluid filter and performing fluid maintenance. Keep the process water and correct glycol mix maintained along with filtering dirt out of the system will prove to be the necessary steps to receiving years of service from your chiller
Budzar Industries has the capability and experience to design, engineer and manufacture both stationary and portable air-cooled chillers to your exact specifications.
Need information specific to your requirements? One of our sales managers can help you. It&#;s easy, contact our team today.
Contact us to discuss your requirements of Glycol for Chiller Systems. Our experienced sales team can help you identify the options that best suit your needs.
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Glycol coolant is one of the most common cooling liquids used in chillers everywhere. It comes in two forms: propylene and ethylene.
Propylene: Propylene glycol is a synthetic liquid substance that absorbs water. Propylene glycol is also used to make polyester compounds, and as a base for deicing solutions. Propylene glycol is used by the chemical, food, and pharmaceutical industries as an antifreeze when leakage might lead to contact with food.
Ethylene: Ethylene glycol, a derivative of ethylene oxide, is used for the manufacture of polyester fiber for clothes, upholstery, carpet, and pillows and the blending of automotive engine antifreeze and coolant. Ethylene glycol is also used to manufacture fiberglass for products such as jet skis, bathtubs, and bowling balls. A major use is in the production of polyethylene terephthalate (PET) resin, a recyclable plastic, such as soda and water bottles.
Glycol of both types are used in chillers as an antifreeze due to their low freezing points. Its use as a heat transfer fluid is unparalleled, but different industries use one or the other depending on the level of toxicity that they can handle. Food industries use propylene ethanol, as doing so won&#;t harm consumers, while ethylene glycol is preferred in industries where contamination is not a factor.
Ethylene glycol&#;s freezing point is much higher than propylene glycol. When ethylene is mixed with water, however, the freezing point drops considerably.
North Slope Chillers offers the best in chiller technology, regardless of which type of heat transfer fluid you use. For more information about how North Slope Chillers can meet your cooling needs, call (866) 826- or [ protected].
If you want to learn more, please visit our website Glycol in Chiller System.