Replacing Jet-A Kerosene’s abundant energy sources with zero-carbon alternatives is no easy task for the aviation industry. There are “sustainable aviation fuels” made from recovered carbon, but nothing that works in cars and trucks can cut it down to achieve zero emissions.Batteries are too heavy and hydrogen gas is too It takes up a lot of space. Intercontinental Green Aviation seems most likely to start using liquid hydrogen at this point.
Hydrogen, by weight, can carry about 2.8 times more energy than current liquid fuels. But even when cryogenically cooled to a liquid, it takes up about 3.7 times more physical space than jet fuel. Therefore, it is lightweight but bulky. Some of that lightening goes away when you start looking at the full system. After all, hydrogen does not stay liquid unless it is kept below 20 Kelvin (-253 °C /-423.4 °F).
h2 fly
Therefore, it is very painful to work with it. So, with the exception of covert military operations in the mid-1900s, most of the new hydrogen aviation companies researched it, bookmarked it, and set out to run planes on gas. hydrogen instead. The rest of these systems, from fuel cells and storage to electric propulsion, are safe and ready for prime time without having to deal with cryogenic liquids that even Lockheed’s Skunk Works couldn’t handle. I have a lot to do to prove that.
But Stuttgart’s H2Fly does just that. Having already made its first manned purely hydrogen-powered flight in 2009 and most recently doing pioneering work with a gaseous hydrogen system built into his twin-fuselage Pipistrel Taurus G4, the company is now , carrying liquid on the same his HY4 plane. Air Liquide’s storage system, hoping to empty the charge back with liquid H2.
Today’s announcement covers the successful completion of the ground refueling test. The company has already conducted extensive vibration and leak testing of cryogenic tanks located solely in the left fuselage, well isolated from pilots in the right fuselage.
h2 fly
Dr. Josef Kallo, co-founder and CEO of H2FLY, said: A flight test campaign scheduled for this summer will demonstrate the feasibility of liquid hydrogen as a fuel for medium and long range flights. ”
In fact, if HY4 takes off as planned this summer, it will be the world’s first crewed flight of a liquid hydrogen-powered airliner. This is pioneering work that will have a major impact on the transition to the environment. We wish these guys well!
Source: H2Fly
