this post was submitted on 29 Dec 2023
143 points (95.0% liked)

Technology

59232 readers
4387 users here now

This is a most excellent place for technology news and articles.

Our Rules

  1. Follow the lemmy.world rules.
  2. Only tech related content.
  3. Be excellent to each another!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, to ask if your bot can be added please contact us.
  9. Check for duplicates before posting, duplicates may be removed

Approved Bots

founded 1 year ago
MODERATORS
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
143
Amazon plans to make its own hydrogen to power vehicles (www.theverge.com)
submitted 10 months ago by [email protected] to c/[email protected]
21 comments fedilink hide all child comments
 

Amazon thinks hydrogen can be a more sustainable fuel for vehicles at its warehouses, but it’ll have to clean up hydrogen production first.

you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 21 points 10 months ago (5 children)

Strange. I'm sure that H2 has benefits to larger vehicles like Trucks. But on small vehicles like forklifts, I thought that battery technology (even Lead-Acid batteries) were sufficient?

Did the H2 fuel cell shrink down in size recently to make forklift-sized vehicles usable for H2 fuel? This is a development that surprises me.

[–] [email protected] 19 points 10 months ago (1 children)

There are fuel cell powered drones out there. Size hasn't been an issue for a long time.

[–] [email protected] 13 points 10 months ago* (last edited 10 months ago) (2 children)

Do you know what the technology is for the pressurized H2 at these sizes? Its been my understanding that larger vehicles scale better (ie: thicker walls and bigger containers) to better deal with the H2 volume issue.

Bigger vehicles can take advantage of exotic / expensive processes like liquified H2 or 700-bar pressures or whatnot. I don't think that's been miniaturized to drone or forklift sizes though.

[–] [email protected] 8 points 10 months ago* (last edited 10 months ago) (1 children)

They're still using pressurized gas tanks. Apparently, not even a drone is not too small for such things.

[–] [email protected] 4 points 10 months ago

What an edifying thread, thank you both for knowing stuff about things

[–] [email protected] 1 points 10 months ago

The drones generally don't use compressed hydrogen (at least the ones I've seen). It's too dangerous. Instead they use a pellet based storage system. You can liberate hydrogen from it, but it's rate limited. It will burn, but it can't launch like a flaming rocket.

The downside is the pellet systems aren't as simple as just refilling the tank.

load more comments (3 replies)