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World’s First Electric Aircraft Flight Powered by New Liquid Hydrogen–Flew for 3 Hours
(www.goodnewsnetwork.org)
this post was submitted on 09 Sep 2023
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This is really cool. Is this kind of tech being made available in cars, too?
No— it is more viable to set up cryogenic hydrogen infrastructure at an airport than replacing our gas stations with hydrogen stations along our roads today. Additionally, the amount of cooling, insulation, and pressurization equipment required will almost certainly be far too large and expensive to fit in a $20-30k passenger vehicle.
Realistically, if we assume a decarbonized future, it’s seeming that battery electric will be used in most small passenger vehicles (cars and trucks today), whereas hydrogen will be used in heavy equipment (construction, extraction, military) and aviation.
It's effectively the same though, if the electricity for the small vehicles is generated by burning hydrogen
It's a fuel cell, it doesn't "burn" hydrogen.
You wouldn't really need fuel cells at a power plant though, would you? Or are there advantages I'm unaware of?
Fuel cells can be more efficient than combustion because of direct electrification. With combustion, there needs to be a boiler, turbine, etc and that adds to the losses through the system.
At industrial scale, it is possible a turbine and boiler is probably the better bet, because the technology is very mature and large fuel cells may pose extra challenges with sourcing the membranes. It would need a more in-depth cost analysis.