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Hydrogen locomotive (www.money.pl)
submitted 1 year ago by Mixel@szmer.info to c/technology@lemmy.world

First hydrogen locomotive started working in Poland.

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[-] Gregorech@lemmy.world 3 points 1 year ago

Would this be a viable option for cruise or cargo ships as well?

[-] roguetrick@kbin.social 6 points 1 year ago* (last edited 1 year ago)

The only real green option for oceangoing cargo ships at our current technology would be nuclear plants. Since small nuclear plants generally require highly enriched uranium suitable to making bombs, I don't foresee it being an option, however.

[-] topinambour_rex@lemmy.world 5 points 1 year ago

Nuclear cargos exist. Or at least existed. URSS then Russia had one for reach a port in the north. It was an ice-breaker.

[-] Gregorech@lemmy.world 3 points 1 year ago

Or back to wind.

[-] iforgotmyinstance@lemmy.world 2 points 1 year ago

Idk how expensive these reactors are tho. The US Navy operates dozens in their fleet between CVNs and SSBNs, but that dwarfs the rest of the world.

[-] heird@lemmy.ml 0 points 1 year ago* (last edited 1 year ago)

Thorium Molten Salt reactor can't be used for weapons because it's no fissable so it can't have a chain reaction that creates explosions

https://ulstein.com/news/ulstein-thor-zero-emission-concept

[-] roguetrick@kbin.social 1 points 1 year ago* (last edited 1 year ago)

Yeah, I wouldn't consider the thorium fuel cycle as part of our current tech. India's going to be the first to start thorium breeding at scale which they haven't gotten close to doing to date. That said, Thorium fuel absolutely can produce nuclear weapons in a breeder reactor design, it's just more difficult because you have to reprocess the fuel for U233 which is what Thorium is bred into.

There are lower enrichment targets you could theoretically use for a small uranium reactor depending on your moderator. It's just easier to use highly enriched uranium, or maybe some sort of MOX fuel.

[-] supercriticalcheese@feddit.it 3 points 1 year ago

Not a very good one.

Hydrogen density is too low, there is more hydrogen in things like ammonia or methanol. All of these are potential solutions to fossil bunk fuel or LNG, but all have issues and there is no clear winner yet.

[-] Gregorech@lemmy.world 1 points 1 year ago

Okay rowing it is.

this post was submitted on 17 Sep 2023
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