Researchers from SINTEF and Rolls-Royce are pioneering a hybrid aircraft engine designed to significantly reduce emissions from regional flights. By integrating electric motors with traditional combustion engines, this new engine type could decrease CO2 emissions by up to 30%, especially for shorter routes such as Trondheim to Oslo. The project aligns with efforts to make aviation more sustainable and reduce its environmental footprint.
The principle mirrors that of hybrid cars, combining fuel and electricity for propulsion. A key aspect involves optimizing electrical insulation for high-voltage and high-frequency operation, an area where SINTEF and Rolls-Royce are collaborating closely. They have developed a novel testing method to evaluate the lifespan of insulation materials under these demanding conditions, which is critical for ensuring engine safety and reliability.
According to researcher Torstein Grav Aakre, focusing on regional flights is strategic because batteries necessary for electric engines are heavier and less suitable for longer journeys. The ongoing research includes developing lighter materials for engines and improving energy management systems. A demonstration engine is scheduled for testing in France next summer, with commercialization targeted for 2035.
As part of the development process, the collaboration aims to address current limitations in electrical insulation technology and engine weight, which are vital steps toward practical hybrid aircraft. This advancement promises a future where regional aviation can operate more sustainably, reducing its contribution to climate change and setting a new standard for environmentally conscious air travel.
