Technology

59613 readers

3193 users here now

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

Our Rules

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

Approved Bots

founded 1 year ago

MODERATORS

143

Finland to build world’s largest air-to-water heat pump plant (www.pv-magazine.com)

submitted 2 months ago by ArtikBanana@lemmy.dbzer0.com to c/technology@lemmy.world

16 comments fedilink hide all child comments

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

[–] HarriPotero@lemmy.world 8 points 2 months ago* (last edited 2 months ago) (1 children)

Helen runs your wastewater through a heat exchanger before this step. I guess the actual heat is from the water treatment when the solids are being nommed on in a big bubbly pool of bacteria that give off heat. But outgoing water is warmer than incoming by itself, too.

There's just not a whole lot of industry close enough to an urban center like Helsinki, but paper mills and burning sorted trash is usually the source for these networks.

[–] CrimeDad@lemmy.crimedad.work 1 points 2 months ago* (last edited 2 months ago)

Okay, district heating with a heat pump makes more sense to me if there are processes that require cooling and can act as the source, like lowering the temperature of treated wastewater before adding it back to a waterway. However, the heat supply for the water treatment plant should still probably come from cogeneration. District cooling with a central heat pump system also makes sense, especially if it eliminates noisy condensers on the sides of buildings.