Engineering

744 readers

1 users here now

A place to geek out about engineering, fabrication, and design. All disciplines are welcome. Ask questions, share knowledge, show off projects you're proud of, and share interesting things you find.

Rules:

Be kind.
Generally stay on topic.
No homework questions.
No asking for advice on potentially dangerous jobs. Hire a professional. We don't want to be responsible when your deck collapses.

The community icon is ISO 7000-1641.

The current community banner image is from Lee Attwood on Unsplash.

founded 1 year ago

MODERATORS

kersploosh@sh.itjust.works

Does anybody have a table of coke or charcoal burn rates? (lemmy.sdf.org)

submitted 2 months ago by CanadaPlus@lemmy.sdf.org to c/engineering@sh.itjust.works

2 comments fedilink hide all child comments

In air. This seems like it should be incredibly basic information but I can't find it anywhere.

you are viewing a single comment's thread
view the rest of the comments

[–] CanadaPlus@lemmy.sdf.org 1 points 2 months ago* (last edited 2 months ago)

Thanks for the answer! I've been going a little nuts.

Burn rate per what? Coal surface area?

Yep. I didn't say, because Wikipedia makes it sound standard. Sorry, I'll try and be a bit more exact next time. Wouldn't any other unit of measurement just derive from it and the complexities of fluid dynamics, given the way solid fuel combustion in an oxidising atmosphere works?

It's for a small, fully enclosed regenerative furnace design. If it was a fire pit of similar you're right that this would be a bad question, but I can assume an exact uniform temperature and as much air as it needs, so the basic chemistry is useful. It doesn't even have to nail it the rate down precisely. The question I'm trying to answer is how much flow I need per load to stay fuel lean, and I'm probably going to add 50% margin anyway.

Something may exist in an older HVAC/power plant engineering handbook somewhere in the world though.

Geez, I really hope it doesn't come to scouring the globe for ancient tomes. It might be easier just to make a table myself at that point, unless I can figure out which one has the table in advance.

Edit: The size of fuel granual to be used is open ended right now, too.