Ethylene Glycol (EG) is a commonly used fluid in the aviation industry due to its excellent heat transfer properties and low cost. EG is used as a coolant in various aircraft systems such as engine cooling, air conditioning, and hydraulic systems. One of the most popular forms of EG is EGW fluid, which is a water-soluble solution of EG.
EGW fluid has several advantages over pure EG, such as lower viscosity, higher boiling point, and a lower freezing point. This makes it an ideal coolant for aircraft engines and air conditioning systems. Additionally, EGW fluid has excellent corrosion inhibiting properties, making it suitable for use in hydraulic systems.
In aircraft engine cooling systems, EGW fluid is used to regulate engine temperature and prevent overheating. The fluid is circulated through the engine and absorbs heat generated by the combustion process. The heated fluid is then transferred to a heat exchanger where it is cooled by air or liquid. The cooled fluid is then recirculated back into the engine.
EGW fluid is also used in aircraft air conditioning systems to cool the cabin air. The fluid is circulated through a heat exchanger where it absorbs heat from the cabin air. The heated fluid is then transferred to a compressor where it is compressed and cooled before being circulated back through the heat exchanger.
In hydraulic systems, EGW fluid is used as a hydraulic fluid due to its excellent lubrication and anti-wear properties. It also has good stability at high temperatures and can handle high-pressure applications.
Despite its advantages, EGW fluid also has some disadvantages. It can be toxic if ingested or inhaled, and it can also be flammable. Additionally, it can be corrosive to some metals if not properly inhibited.
To ensure the safe and effective use of EGW fluid in aircraft systems, it is important to follow manufacturer specifications and use the appropriate EGW fluid for each application. It is also essential to have proper training and safety measures in place for handling and storing the fluid.
In conclusion, EGW fluid is a versatile and cost-effective coolant and hydraulic fluid that plays a vital role in the aviation industry. Its excellent heat transfer and corrosion inhibiting properties make it suitable for use in various aircraft systems. However, it is important to use the appropriate EGW fluid for each application and follow proper safety procedures to ensure safe and effective use.