This website uses cookies
More information
Business Air News
Business Air News
The monthly news publication for aviation professionals.
Related background information from the Handbook...

ZeroAvia

Fuel/Lubricants

BAN's World Gazetteer

California
The monthly news publication for aviation professionals.

Request your printed copy

ZeroAvia to explore fuelling with cryo-compressed hydrogen
A denser form of hydrogen storage promises faster refuelling and lower costs for hydrogen aviation, and ZeroAvia plans to explore cryo-compressed hydrogen for airports and aircraft.
Cryo-compressed hydrogen could achieve greater usable density than liquid or gaseous hydrogen.
Read this story in our February 2024 printed issue.

ZeroAvia and Verne,, a hydrogen storage and refuelling technology startup, are to jointly evaluate the opportunities for using cryo-compressed hydrogen (CcH2) on board aircraft and for conducting CcH2 refuelling from gaseous hydrogen (GH2) and liquid hydrogen (LH2) sources.

Cryo-compressed hydrogen stores gaseous hydrogen at cold temperatures, increasing the energy density of the fuel, which could enable a longer range compared to GH2 powered aircraft.

According to analysis by Verne, cryo-compressed hydrogen can achieve 40 per cent greater usable hydrogen density than liquid hydrogen, and 200 per cent greater usable hydrogen density than 350 bar gaseous hydrogen. Additionally, the application of cryo-compressed hydrogen promises to significantly reduce the cost of densification and refuelling time, to increase dormancy time relative to LH2 systems and to potentially eliminate venting for pressure management.

The two companies will assess the potential benefits of scaling CcH2 storage and refuelling infrastructure at airports around the world as hydrogen-electric propulsion scales to support larger and larger aircraft. They will also work together to develop a model for initial airport locations in California.

Verne has developed large hydrogen storage systems enabling 4MWh of storage, and it recently demonstrated its 1MWh CcH2 storage prototype with Lawrence Livermore National Laboratory. Verne has received federal grants for the development of its technology, including from ARPA-E, and is backed by Amazon's Climate Pledge Fund, Caterpillar Venture Capital, Collaborative Fund and other leading investors. As well as undertaking rapid work to develop its propulsion technology, ZeroAvia has been active in demonstrating hydrogen airport infrastructure.

Chief business officer Sergey Kiselev says: "With our engines just a few years from flying passengers and cargo, it is important for us that we find the optimal solutions to support airport hydrogen ecosystems. Increasing storage capacity and refuelling speed using novel technologies is an important avenue for scaling up hydrogen aviation and we're delighted to work with Verne on assessing the role of cryo-compressed hydrogen."

Ted McKlveen, CEO and co-founder of Verne, adds: "Aviation is a massive potential market for Verne as it becomes clear that hydrogen is critical to tackling the industry's climate impact. Airports can be centres of hydrogen activity, with co-located hydrogen demand for aircraft, airport ground operations and on-road commercial transportation. Cryo-compressed hydrogen has a key role in optimising this ecosystem."

ZeroAvia is already flight testing a prototype of its ZA600 hydrogen-electric engine aboard a Dornier 228 aircraft at its UK base, and is working to retrofit a prototype of its ZA2000 to a 76 seat Dash 8 400 in the US. Hydrogen-electric engines use hydrogen in fuel cells to generate electricity, which is then used to power electric motors to turn the aircraft's propellers. The only emission is water.

Other News
 
ZeroAvia gains grant for liquid hydrogen refuelling trucks
January 25, 2024
The $3.25m enables ZeroAvia to design, build and test a rapid liquid hydrogen refuelling vehicle. It will open operations at Livermore Municipal airport ahead of aviation-focused LH2 fueling demonstrations.
Archer fine tunes battery cell safety with NASA
January 25, 2024
Under NASA's Space Act Agreement, Archer will collaborate on mission-critical eVTOL aircraft technologies. It also continues to attract top talent from Wheels Up and Delta to support Midnight's entry into service in 2025.
Full-scale prototype assembly by Overair signals start of Butterfly flight tests
December 28, 2023
This marks the build and assembly of the first-ever eVTOL aircraft to utilise Optimum Speed Tilt Rotor and Individual Blade Control technology. The Butterfly will begin flight testing in early 2024.