Deicing and Anti-icing Equipment Information

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Description

 

Deicing and anti-icing equipment refers to the range of equipment used to prevent the accumulation of snow, ice, and frost, whether by electromechanical, chemical, thermal, or pneumatic measures. These are most commonly used to remove snow and ice from aircraft and throughfares, but serve other limited purposes.

 

 

Deicing and Anti-Icing Equipment

 

Equipment

 

Most equipment associated with deicing operations include applicators, power and pressure systems, reservoirs/hoppers, and handling equipment.

 

Application

 

Applying deicing agents can be done by an external or integral system, and in the latter instance detection equipment is often used to begin a deicing process. In severe winter weather these processes are often not enough to alleviate risks and dangers.

 

Methods in Aerospace Applications

 

A deicing process is initiated when the aircraft begins to buildup almost any level of frozen precipitation, which can be catastrophic in certain instances. Deicing and Anti-Icing Equipment

 

Several methods are used to keep an aircraft relatively ice-free:

 

  • Chemical fluids applied by a crew or an aircraft-mounted nozzle
  • Built-in, electrically-heated elements melt ice and snow along aircraft components
  • Pneumatic bladders inflate and dislodge snow and ice from sensitive instruments
  • Coils within the aircraft body contract/extend under electrical current to remove snow and ice

 

Methods in Transportation Applications

 

Typically, flatbeds or plow trucks release a rock salt or glycol agent onto a plowed road surface to help eliminate ice and prevent further frost growth. These enhance the traction of subsequent travellers and specialized equipment is used to apply substances to road surfaces.

 

Undersized versions exist for application to walkways by ATVs or tractors.

 

Standards

 

A-A-59145 - Cleaning truck-mounted spraying unit

 

SAE ARP1971 - Self-propelled aircraft deicing vehicle

 

References

 

Image credit:

 

PAS Aircraft Deicing

Airline Services

 

 

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