Audi competes in the Dakar Rally using reFuel

Audi uses residue-based products that do not compete with food to further reduce carbon dioxide emissions in connection with the fuel for the rally car. They are predicated on a procedure that first transforms biomass into ethanol. Numerous further methods are required before the final gasoline is produced. Ethanol-to-gasoline is the short name for this transformation (ETG). Biogenic plant components are the starting point for the process technicians.

The RS-Q e-fuel tank contains e-methanol and ETG, two renewable fuels that makeup 80 percent of the tank's total content. The gasoline is burned within the energy converter's internal combustion engine component, which operates at a high compression ratio and is thus very efficient, supplying power to the electric drivetrain. This improvement is necessary because the powertrain design must already consume less gasoline than standard systems. With this fuel mixture, the Audi RS Q e-tron reduces carbon emissions by almost 60%, according to Dr. Fabian Titus of the application and thermodynamics development group.

The combustion engine achieves greater efficiency than fossil-based gasoline, and the novel fuel satisfies the stringent chemical requirements of the FIA and ASO fuel standards. However, the energy density of reFuel is reduced due to its oxygen concentration, which lowers the fuel's volumetric heating value. It follows that the Audi RS Q e-tron necessitates a bigger tank capacity. It's important to note that the fuel flow meter determines energy usage with an eye toward fairness for all competitors by providing the most accurate results possible.