| Abstract |
Even if the impact of aviation on global warming is 'only 3.5\%', in absolute terms we are speakingabout gigatons of CO2, which must be massively reduced by 2050: net zero CO2 by 2050 is the goal.To support this, Airbus wants to be a pioneer of decarbonized aviation and already in 2018, Airbusdecided to take disruptive steps and continued to do so during the Corona crisis. We evaluatehydrogen powered propulsion technologies in regards to electronics & electric motors, fuel cells,liquid hydrogen storage and gas turbines. The fuel cell uses hydrogen to convert it into electricalenergy. The electrical power of the fuel cell is used via power electronics to drive electric motors,which are connected to the propeller shaft via gears. Hydrogen direct combustion is the second formof drive for the propeller shaft. For this, the hydrogen (ideally in liquid form) is compressed and thensprayed into the combustion chamber. The heat generated by the ignition is used in a thermodynamicprocess to drive the shaft via turbine blades (similar to a classic jet engine). But on the way to thisgoal there are still some challenges to overcome _ technically, logistically and also politically. |
