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submitted 2 years ago by mac@programming.dev to c/tech@programming.dev
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[-] Bangeo@aussie.zone 72 points 2 years ago

I get the whole "this isnt new" sentiment but we cant just swap right back to 100% wind power without developing NEW wind propulsion methods. We need to either match the speed of engine powered ships or increase efficiency (like this has).

Unless you want to go back to ships taking many more months or years to cross the ocean like they used to. Being snarky about ships using wind again is completely the wrong attitude to have if we want to make this work.

[-] Ulvain@sh.itjust.works 8 points 2 years ago* (last edited 2 years ago)

The long term solution is probably a combination of technologies - hydrogen and solar to power some propellers cleanly, batteries to regulate the solar and wind power, new and improved "sails" like this, channeling energy from waves, new types of coating that significantly reduce friction and increase gliding factor, new much lighter containers to reduce total weight, etc...

[-] thedeadwalking4242@lemmy.world 5 points 2 years ago

Probably just need to use biofuels and or very large battery systems. Generating enough energy on a vessel of that size probably isn't feasible. Could maybe switch to nuclear instead that seems risky

[-] Ragnarok314159@sopuli.xyz 3 points 2 years ago

Giving all these ships access to nuclear generators would be really bad.

Biofuel tanks might work in some situations, but it would either take away from shipping volume or limit access due to height of the ship.

[-] thedeadwalking4242@lemmy.world 3 points 2 years ago

Why would it take away from shipping volume? A biodiesel or equivalent shouldn't take up any more room then current field?

[-] nilloc@discuss.tchncs.de 4 points 2 years ago

Bio fuels are typically less energy dense than dinosaur squeezings. Diesel is around 40 mega joules per liter. Biodiesel is around 33.

So in this example you only get 82.5% of the energy unless you increase capacity of the fuel tanks, which would decrease the available space for cargo.

[-] ceiphas@feddit.de 71 points 2 years ago

Wow... The innovation... Sails on ships... Next they add wheels to sleighs, These nerdy bastards

[-] mac@programming.dev 36 points 2 years ago

Rather than usual sails these are solid and foldable and act more like plane wings

[-] Jake_Farm@sopuli.xyz 2 points 2 years ago

I mean sails form an aerofoil but these are ridged aerofoils.

[-] spujb@lemmy.cafe 32 points 2 years ago

lowkey tired of being able to guess the exact snarky deadpan top comment before opening the post

no hate to you commenter. :) its a funny comment and the world is fucked i just wish we could for once be genuinely happy and celebrate that engineers are helping us do better

[-] RaoulDook@lemmy.world 27 points 2 years ago

Next they should replace the diesel engines with bigass electric motors, and put solar panels over every top surface of the vessel that they can, and even possibly on the sail-wings too. Wind and solar powered shipping would be a good combo since there are plenty of both out on the seas. Charge the boat batteries at port as needed, cruise while collecting solar power etc

[-] Red_October@lemmy.world 13 points 2 years ago

Not even close to enough surface area to power them with solar. Even if the entire ship held up a solar array that completely shadowed the ship would it be enough.

[-] onlinepersona@programming.dev 5 points 2 years ago

I look forward to hydrogen-fueled ships and hydrogen-fueled planes. That's going to be fun.

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[-] GarytheSnail@programming.dev 6 points 2 years ago

Are you copyrighting your comment?

[-] onlinepersona@programming.dev 4 points 2 years ago
[-] GarytheSnail@programming.dev 3 points 2 years ago

Can an instance blanket copyright all of their users comments?

Also, I'm not sure why you're getting down voted, sorry.

[-] onlinepersona@programming.dev 2 points 2 years ago

Can an instance blanket copyright all of their users comments?

They probably get the right to distribute it because that's their primary purpose. But I'm not sure if they get the right to distribute it under another license? No idea... copyright is beyond me.
However, if it gets commercial AI makers in trouble, that's fine by me.

Also, I’m not sure why you’re getting down voted, sorry.

Eh, not a problem. They're just make believe points. Of no importance.

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[-] RememberTheApollo_@lemmy.world 5 points 2 years ago

IIRC it still burns a crapload of regular fuel, say 14T a day; so yeah, it’s a savings, but it needs to be better.

[-] mapleseedfall@lemmy.world 25 points 2 years ago

Any savings is a good step. stop discounting those steps

[-] Tebbie@lemmy.world 4 points 2 years ago

14% gain is still extremely good.

[-] Pulptastic@midwest.social 4 points 2 years ago

That's a good start. Now get rid of the rest of the diesel fuel used.

this post was submitted on 02 Apr 2024
226 points (100.0% liked)

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