Physical properties of antifrogens N, L, KF and SOL

GLYC module

The program calculates the physical properties as a function of temperature and composition or the frost resistance of

• ^®Antifrogen N (ethylene glycol-water mixtures)
• ^®Antifrogen L (1,2-propylene glycol-water mixtures)
• ^®Antifrogen L (Aqueous solution of organic salts (formates))

as well as the physical properties as a function of the temperature of

• ^®Antifrogen SOL (propylene glycol mixed with higher boiling alkylene glycols).
  This should be used undiluted and has a frost resistance of -27 °C.

The following properties are calculated

	®Antifrogen
Property	N	L	KF	SOL
Density ρ	x	x	x	x
Specific heat capacity cp	x	x	x	x
Dynamic viscosity η	x	x	x	x
Kinematic viscosity ν	x	x	x	x
Thermal conductivity λ	x	x	x	x
Prandtl number	x	x	x	x
Coefficient of cubic expansion β	x	x		x
Boiling temperature ϑ s	x	x
Vapour pressure ps	x	x		x
Frost resistance FS	x	x	x

Price  module package GLYC see price list

® Registered trademark of Clariant GmbH

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Recommendations

^®Antifrogen N

If no special requirements are made, the ethylene glycol-based Antifrogen N should be used instead of Antifrogen L due to its better physical properties.

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^®Antifrogen L

Antifrogen L based on the physiologically safe 1,2-propylene glycol should be used in apparatus in which the heat transfer medium could come into contact with drinking water or food (e.g. breweries, dairies, ice cream factories, deep-freeze chains, fish processing factories, etc.).

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^®Antifrogen KF

The low viscosity Antifrogen KF cooling sole is used especially for low-temperature systems below -20 °C in the food and luxury food sector, e.g. in supermarkets, dairies, ice cream factories, deep-freeze chains, fish processing factories, etc. The low viscosity Antifrogen KF cooling sole is used for the production of food, beverages and tobacco.

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^®Antifrogen SOL

Antifrogen SOL should be used in solar systems with high thermal loads, especially with vacuum tube collectors. Antifrogen SOL has a boiling point of approx. 106 °C. However, it can be used under pressure at much higher temperatures (up to 260°C).

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see also:

• Shell and Tube Heat Exchangers (WTS)
• Pure substance condensers with desuperheating zone, condensation zone and subcooling zone. (KOND)
• Evaporator/ pure substances (VERD)
• Electrically heated forced-flow heaters
• Air coolers/ Tube register heat exchangers with plain or finned tubes (AC)
• Helical coil heat exchangers
• Coiled double-pipes (KOAX)

Dieser Beitrag ist auch verfügbar auf: Deutsch (German)