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Suppliers: Hydrogen Drones
BlueBird Aero Systems
Tactical Hybrid VTOL UAS & Loitering Systems for Multi-Domain Operations
Gold Partner
ISS Aerospace
Autonomous Drone Design, Manufacturing and Operations For Wide Area Actionable UAS Intelligence
Gold Partner
Gadfin
Fixed-Wing Hybrid Drones for Long-Range Medical Package Delivery & Infrastructure Inspections
Gold Partner
H3 Dynamics
Enablers of Long-Range Hydrogen Electric Flight | Hydrogen Solutions for UAVs; Lightweight PEM Fuel Cells & Mobile Hydrogen Refueling Stations
Gold Partner
Phoenix Flight Industries
Innovative Hydrogen-Powered UAV Systems & Hydrogen Refueling Services
Silver Partner
Products
Hydrogen Powered Drones
Hydrogen Fuel Cell Drones
Hydrogen-powered UAVs (unmanned aerial vehicles) and drones, also known as H2 drones, use fuel cells to convert hydrogen into useful electrical energy that can be used to power the drone’s propulsion system and other components. The fuel cells also take in oxygen from the air and produce only water as an emission, making them highly environmentally-friendly compared to other drone power methods.
Hydrogen-Powered Fuel Cells
One of the most common fuel cell technologies utilized by hydrogen drones is PEM (proton exchange membrane). PEM cells use a solid polymer membrane to separate the positive and negative terminals of the cell. Hydrogen is fed to the anode, where the atoms are separated into protons, which move through the membrane to the cathode, and electrons, which take an external route to the cathode. This flow of electrons is harnessed to provide the current output of the cell. PEM cells are highly suited to drone applications as they are power-dense and thus provide an excellent power-to-weight ratio.
H2 Drones & Batteries
Hydrogen UAVs may also be equipped with a small rechargeable battery in addition to the fuel cells. This allows extra power to be provided during times of peak demand such as takeoff and high-speed flight. Multiple fuel cells may also be stacked within the hydrogen drone propulsion system in order to provide extra power output.
Advantages & Applications
In addition to environmental footprint, hydrogen drones also have a number of other advantages. These include the ability to provide greater flight endurance than drone batteries, with many H2 multirotors able to extend mission times from a typical 30 or 40 minutes to several hours. Hydrogen cylinders can also be refilled very quickly, whereas batteries can take many hours to fully recharge.
Hydrogen drones are suitable for a variety of long-range, long-endurance and BVLOS (beyond visual line of sight) missions, including delivery, inspection and monitoring of large-scale assets such as pipelines and powerlines, SAR (search and rescue), and military ISR (intelligence, surveillance and reconnaissance).
Hydrogen fuel cells and hybrid propulsion systems are also being trialled for other unmanned systems such as USVs (unmanned surface vehicles), UGVs (unmanned ground vehicles) and AUVs (autonomous underwater vehicles).
