Comparison between conventional battery drones and hydrogen fuel cell drones.
Hydrogen fuel cell drones perform various tasks since it has better endurance and travels further compared to the battery-powered drones.
Long Endurance Flight
Long Endurance Flight
Hydrogen (4,000~8,000) > Gasoline (2,000) > Lithium Battery (200) (Unit : wh/kg)
A load of Gasoline / Battery increase the weight of UAV and occurs inefficiency since the flight power demand also raises.
Long endurance UAVs are primarily powering by the hydrogen.
Hydrogen Safety
hydrogen is much safer than conventional fossil fuels in public in consideration of the properties of hydrogen (diffusivity, non-toxicity, etc.) with the protection of the container.
▶ The Innovation Technology Institute of George Washington University also concluded that ‘hydrogen is much safer than conventional fuels’ at their report ‘Hydrogen and Legal Systems – Safety and Responsibility’
If hydrogen escapes from the container, it immediately spreads out into atmosphere through flaming
Hydrogen containers consist of carbon fiber composite; hence, the container will be ripped if the hydrogen leaks out instead of leading the explosion.
Unlike other fossil fuels, hydrogen does not release toxic elements in case of combustion. Also, the level of radiant heat is 10% compared to fossil fuels, so the danger of burns and fire possibility is low.