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Antifreeze - Ethylene Glycol Volume vs. Temperature Rating

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Required amount of antifreeze to protect cooling systems at specific temperature ratings can be estimated from the charts below:

  • tC = 0.56 (tF - 32) = 5/9 (tF - 32)
  • 1 Gallon (U.S.) = 3.785x10-3 m3 = 3.785 dm3 (liter) = 231 in3 = 0.13368 ft3 = 4.951x10-3 yd3 = 0.8327 Imp. gal (UK) = 4 Quarts = 8 Pints

Never use more than 70% antifreeze in a cooling system.

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Related Topics

• Air Conditioning Systems

Design of Air Conditioning systems - heating, cooling and dehumidification of indoor air for thermal comfort.

• Material Properties

Properties of gases, fluids and solids. Densities, specific heats, viscosities and more.

• Miscellaneous

Engineering related topics like Beaufort Wind Scale, CE-marking, drawing standards and more.

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Comparing ethylene glycol and propylene glycol antifreeze properties.

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Freezing point, density, specific heat and dynamic viscosity of Calcium Chloride Water coolants.

Ethylene Glycol Heat-Transfer Fluid Properties

Properties like freezing point, viscosity, specific gravity and specific heat of ethylene glycol based heat-transfer fluids, or brines.

Freeze Protection of Water based Heat Transfer Fluids

Comparing antifreezes used in water based heat transfer fluids or brines.

Isopropanol (2-Propanol) based Freeze Protected Water Solutions

Freezing and flash points of isopropanol (2-Propanol) based water solutions or brines.

Liquids - Thermal Conductivities

Some fluids and their thermal conductivities.

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Volumetric - or cubical - expansion coefficients for common liquids.

Methanol Freeze Protected Heat Transfer Liquids

Freezing and flash points for methanol or methyl based heat-transfer fluids or brines.

Propylene Glycol based Heat-Transfer Fluids

Freezing points of propylene glycol based heat-transfer fluids suitable for the food processing industry.

Secondary Coolants - Properties

Comparing properties like specific gravity, freezing points and viscosity for secondary coolants like calcium chloride, sodium chloride, ethylene glycol and propylene glycol.

Snow Melting Systems

Sizing snow melting systems - water and antifreeze.

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