antifreezeˈæn tɪˌfriz, ˈæn ti-
antifreeze (n)
English Definitions:
antifreeze (noun)
a liquid added to the water in a cooling system to lower its freezing point
antifreeze (Noun)
A substance, such as glycol, used to lower the freezing point of water; used as an additive in the radiators of motorcars.
Antifreeze
An antifreeze is a chemical additive which lowers the freezing point of a water-based liquid. An antifreeze mixture is used to achieve freezing-point depression for cold environments and also achieves boiling-point elevation to allow higher coolant temperature. Freezing and boiling points are colligative properties of a solution, which depend on the concentration of the dissolved substance. Because water has good properties as a coolant, antifreeze is used in internal combustion engines and other heat transfer applications, such as HVAC chillers and solar water heaters. The purpose of antifreeze is to prevent a rigid enclosure from undergoing catastrophic deformation due to expansion when water turns to ice. Commercially, either the additive or the mixture may be referred to as antifreeze. Careful selection of an antifreeze can enable a wide temperature range in which the mixture remains in the liquid phase, which is critical to efficient heat transfer and the proper functioning of heat exchangers. Antifreezes are commonly used for de-icing such as for aircraft wings. Salts are frequently used for de-icing, but salt solutions are not used for cooling systems due to corrosion.
Antifreeze
An antifreeze is an additive which lowers the freezing point of a water-based liquid. An antifreeze mixture is used to achieve freezing-point depression for cold environments. Common antifreezes also increase the boiling point of the liquid, allowing higher coolant temperature. However, all common antifreeze additives also have lower heat capacities than water, and do reduce water's ability to act as a coolant when added to it.Because water has good properties as a coolant, water plus antifreeze is used in internal combustion engines and other heat transfer applications, such as HVAC chillers and solar water heaters. The purpose of antifreeze is to prevent a rigid enclosure from bursting due to expansion when water freezes. Commercially, both the additive (pure concentrate) and the mixture (diluted solution) are called antifreeze, depending on the context. Careful selection of an antifreeze can enable a wide temperature range in which the mixture remains in the liquid phase, which is critical to efficient heat transfer and the proper functioning of heat exchangers. Also important to note is most if not all commercial antifreeze formulations intended for use in heat transfer applications include different kinds of anti-corrosion and anti-cavitation agents that protect the hydraulic circuit from progressive wear.
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"antifreeze." Kamus.net. STANDS4 LLC, 2024. Web. 19 Apr. 2024. <https://www.kamus.net/english/antifreeze>.
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