Challenges face the dream of using hydrogen-powered aircraft over long distances, particularly in terms of the space and weight required to accommodate this type of fuel. However, the development of cryo-compressed hydrogen could potentially solve this complex issue.
ZeroAvia, an Anglo-American company that is pioneering the development of hydrogen-powered electric aircraft, has entered into a partnership with Verne, a specialist in cryo-compressed hydrogen. The goal of this partnership is to eventually enable the use of this type of fuel to power long-distance flights.
While hydrogen is typically encountered in gas or liquid form, it can also be cryo-compressed, meaning it is cooled to a very low temperature (below -253 degrees Celsius). This process increases the energy density of the gas, reducing the size and weight of the tanks needed to store it. According to Verne, cryo-compressed hydrogen can achieve 40% greater usable hydrogen density than in liquid form, and 200% higher than in gaseous form. Additionally, this configuration is considered to be less flammable, enhancing safety.
The aim of the partnership is to explore the potential of cryo-compressed hydrogen for powering electric aircraft and to optimize the range of these aircraft. This technology could not only increase range, but also reduce refueling times, making electric aircraft more attractive to passengers.
Currently, cryo-compressed hydrogen technology is still in the development stage. ZeroAvia hopes to conduct its first full-scale test in 2027, on an aircraft with seating for 40 to 80 people and an estimated range of 700 miles (approximately 1,120 km). – AFP Relaxnews
