Testing and verification of the quality of JET A-1 fuel and lubricants from the aspect of device operation and engine unit testing

In the aviation industry, in order to ensure the safe operation of jet engines in all modes and in all application conditions, the fuel and lubricants used must have a safe quality prescribed by relevant international standards. Conventional jet fuels are chemically complex mixtures consisting of four basic groups of hydrocarbons: paraffin, naphthene, aromatics and olefins. Their content in the fuel ranges from 98% to 99%, while the rest from 1% to 2% are non-hydrocarbon compounds: sulfur, nitrogen, oxygen and traces of various metals or compounds containing metals. In the last decades of the twentieth century, the development and use of sustainable alternative jet fuels emerged as a key factor in reducing the decarbonization of the airspace (reducing aviation-related CO2 emissions). “Refuel Aviation” initiative promotes the development and use of sustainable aviation fuels. of SAFs (sustainable aviation fuels) for the decarbonization of air traffic, highlighting the obligation of suppliers to increasingly sell sustainable fuels at all airports within the EU.