Hydrogen-Powered Aircraft: Hydrogen-Electric Hybrid Propulsion for Aviation
The ever-increasing demand for passenger air travel means unprecedented aircraft market growth in the coming decades. However, large airline fleets lead to serious environmental concerns. A clear goal was set during the 2021 United Nations Climate Change Conference (COP26): securing global net-zero emissions by midcentury while keeping 1.5 °C of temperature rise within reach. Hydrogen (H 2 ) propulsion technology provides one of the most promising opportunities to meet this target and decarbonize global aviation. Thus, this article reviews and collates state-of-the-art research related to H 2 –electric hybrid aircraft. After introducing the potential benefits of H 2 propulsion, fuel cell (FC) auxiliary power in airplanes and H 2 FC-powered aircraft are discussed.
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Hydrogen-Electric Aircraft Technologies and Integration: Enabling an Environmentally Sustainable Aviation Future
As the global community grapples with growing concerns of a changing climate, many eyes have turned to the sustainability of the transportation sector. In the United States, transportation is currently the leading category contributing to all greenhouse gas emissions, producing more emissions per year than the electricity generation, industry, commercial and residential, and agricultural sectors individually. As various transportation modes transition to more sustainable models, such as with the use of battery-electric vehicles, the aviation sector has struggled to identify effective solutions for future sustainability goals, largely due to the difference in power and energy requirements of aircraft, as compared to other vehicles.
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