Freeze Protection of Water based Heat Transfer Fluids
Comparing antifreezes used in water based heat transfer fluids or brines.
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Different types and concentrations of antifreezes like
- ethanol
- methanol
- propylene glycol
- ethylene glycol
can be used to freeze protect water based heat transfer fluids or brines where the temperature in the fluid is below 0oC (32oF). Typical advantages and disadvantages for the freeze protection fluids are listed below.
Note! Check the related documents listed below for details.
Ethanol
- low corrosiveness
- high flammability (if pure)
- low toxicity
- high heat transfer capacity
- low pumping requirements due to viscosity
- moderate cost
Methanol
- low corrosiveness
- high flammability (if pure)
- high toxicity
- high heat transfer capacity
- low pumping requirements due to viscosity
- low cost
Propylene Glycol
- low corrosiveness
- low flammability
- low toxicity
- low heat transfer capacity
- high pumping requirements due to viscosity
- high cost
Ethylene Glycol
- low corrosiveness
- low flammability
- high toxicity
- low heat transfer capacity
- high pumping requirements due to viscosity
- high cost
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Related Topics
-
Air Conditioning
Air Conditioning systems - heating, cooling and dehumidification of indoor air for thermal comfort.
Related Documents
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Antifreeze - Ethylene Glycol Volume vs. Temperature Rating
Freeze protecting of cooling systems - temperature rating vs. required amount of antifreeze. -
Antifreeze - Ethylene Glycol vs. Propylene Glycol
Comparing ethylene glycol and propylene glycol antifreeze properties. -
Calcium Chloride Water Solutions
Freezing point, density, specific heat and dynamic viscosity of Calcium Chloride Water coolants. -
Ethanol - Dynamic and Kinematic Viscosity vs. Temperature and Pressure
Online calculator, figures and tables showing dynamic and kinematic viscosity of ethanol, C2H5OH, at varying temperature and pressure - Imperial and SI Units. -
Ethanol - Specific Heat vs. Temperature and Pressure
Online calculators, figures and tables showing specific heat , Cp and Cv, of gasous and liquid ethanol at temperatures ranging from -25 to 325 °C (-10 to 620 °F) at atmospheric and higher pressure - Imperial and SI Units. -
Ethanol Freeze Protected Water Solutions
Freezing temperature and flash points for ethanol based water solutions or brines. -
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. -
Isopropanol (2-Propanol) based Freeze Protected Water Solutions
Freezing and flash points of isopropanol (2-Propanol) based water solutions or brines. -
Methanol - Dynamic and Kinematic Viscosity vs. Temperature and Pressure
Online calculator, figures and tables showing dynamic and kinematic viscosity of liquid methanol,CH3OH, at varying temperature - Imperial and SI Units. -
Methanol - Thermophysical Properties vs. Temperature
Thermophysical properties of methanol. -
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. -
Sodium Chloride Water Solutions
Freezing point, density, specific heat and dynamic viscosity of Sodium Chloride and Water coolant.
