The qualities of this Repsol fuel make it perfect for jet engine turbines in civil aviation. It is a kerosene that comes from the distillation of crude oil, which is the raw material of the refining industry.
Its primary function is to supply power to the aircraft. The key parameters are its energy content and the quality of combustion..
It's colorless or slightly yellow, with an approximate average density of 6.7 lb/US gallon (0.8 kg/L), and it can be flammable at temperatures greater than 100.4°F (38°C) in the presence of a flame or spark. If there were only one thing worth mentioning, it'd be the great heat potential that enables maximum possible energy at minimum weight. It also has an excellent level of cold resistance with very low crystallization point temperatures, since at the altitudes at which the aircraft fly temperatures are very low.
Great product stability, to ensure that it is not affected by oxidation processes, as well as a high degree of thermal stability. In addition to providing energy, the fuel is also used as the hydraulic fluid in the engine control systems and as a coolant for certain fuel system components.
The use of JET A-1 is determined by the type of aircraft engine. In current models, this fuel is used not only to provide energy, but also as a lubricant and as a heat exchanger to cool:
JET A-1 is a liquid fuel that is injected continuously into a combustion chamber in which a constant current of gases is produced at high pressure and temperature. This stream of gas is what generates the jet reaction that propels the aircraft.
Today's high-performance turbojets compress the air up to three and four times more than piston-based engines. Compressing the air, prior to mixing it with the fuel and combustion, is one of the factors that has the most impact on fuel economy.
The quality of the product is checked at the Repsol refineries, renowned for their stellar quality, throughout the entire JET A-1 fuel manufacturing process. Continuous filtration of water and solid particles guarantees a fuel with a high level of purity, the main purpose of which is to maintain the product's qualities.
Our methodology for quality loss prevention is based on avoiding the accumulation of water, microbiological contamination, and solid particles.
At each stage in the JET A-1 production process, tests are run to determine the absence of these elements, and the fuel goes through different filtration processes. This ensures that the fuel supplied to the aircraft complies with all quality standards.
JET A-1 is used in aircraft propelled by turbine engines. In these, unlike in the spark-ignition engines, there are no pistons or rods that convert longitudinal movement into circular. On the contrary, they consist of a rotor, with small blades, that is moved by the combustion gases.
Turbines convert the kinetic energy of a fluid into movement, into mechanical energy by means of the fluid movement towards the rotors. The hot compressed gases leave the engine at high speed, generating the force or impulse that moves the aircraft forward. The turbine has three sections, each of which having a different function:the compression section, the combustion section, and the turbine section.