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Freeze Protection Closed Loop Systems
Antifreeze is used to freeze protect water based heat transfer fluids or brines
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Various types and concentration of antifreeze like
- ethanol
- methanol
- propylene glycol
- ethylene glycol
can be used to freeze protect brines where the temperature in the fluids are below 0oC (32oF). Typical advantages and disadvantages for the freeze protection fluids are listed below:
Ethanol
- low corrosiveness
- high flammability if pure
- low toxicity
- high heat transfer capacity
- low viscosity
- moderate cost
Methanol
- low corrosiveness
- high flammability if pure
- high toxicity
- high heat transfer capacity
- low viscosity
- low cost
Propylene Glycol
- low corrosiveness
- low flammability
- low toxicity
- high heat transfer capacity
- higher viscosity
- high cost
Ethylene Glycol
- low corrosiveness
- low flammability
- high toxicity
- lower heat transfer capacity
- higher viscosity
- high cost
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Related Topics
- Air Conditioning - Air Conditioning systems - heating, cooling and dehumidification of indoor air for thermal comfort
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Related Documents
- Calcium Chloride - Water - Freezing point, density, specific heat and dynamic viscosity of Calcium Chloride - Water coolant
- Comparing Ethylene Glycol and Propylene Glycol - Comparing the properties of ethylene glycol and propylene glycol
- Ethanol Freeze Protected Water Solutions - Freezing and flash points of ethanol based water solutions - brines
- Ethylene Glycol Heat-Transfer Fluid - Freezing point, viscosity, specific gravity and specific heat capacity of ethylene glycol based heat-transfer fluids, or brines
- Methanol - Thermophysical Properties - Thermophysical properties methanol
- Methanol Freeze Protected Heat-Transfer Fluids - Freezing and flash points of methanol based heat-transfer fluids - 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 - Freezing point, density, specific heat and dynamic viscosity of Sodium Chloride - Water coolant
