Environment & Energy
Related: About this forumHycopter: World's First Hydrogen Fuel Cell Quadracopter
Forget bulky batteries. Hycopter uses its structure to store compressed hydrogen to power its fuel cell generator.
Evworld.com Published: 16-May-2015
How often have you heard this lament? "My cellphone battery is running down!" Whether it's a dead cellphone or electric car in limp home mode, it's always the battery, it seems.
It's one thing have the battery drain in a phone or car. It's another in a flying machine. Run out of charge and down it comes; in the case of a mini-UAV, that happens around 15-20 minutes of flight time, even with the most advanced lithium batteries available on the consumer market...
...In the case of its new Hycopter micro UAV quadracopter, pictured above, it stores 120g (0.26 pounds) of hydrogen in its structure, which is the equivalent of 3kg (6.6 pounds) of lithium batteries. Since the Hycopter has less weight to lift, it can fly longer: the company claiming up to four hours of flight time...MORE
http://www.evworld.com/news.cfm?newsid%3D32610
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Related, From Hydrogen Energy Systems: Boeing's fuel cell technology is making sustainable flight closer to reality
Published on Feb 24, 2015
Powering an aircraft could soon be a sustainable endeavor. Fuel cell technologies being explored by Boeing use a fusion of hydrogen and oxygen to help power aircraft electricity, produce heat, and provide clean water. Learn more at http://www.boeing.com/innovation/
Flying Fuel Cells!- And someone said "Fuel Cells are so bullsh*t"
NYC_SKP
(68,644 posts)Hydrogen is an energy carrier, it's only as sustainable as the true energy sources that are used to create it.
Hydrogen might be the most abundant element, but it's not sitting out there in an available form.
Sixth grade science.
longship
(40,416 posts)The answer is usually accompanied by stammers and stumbles.
Hydrogen is not an energy source, at least not on Earth.