c/solarpunk · by scroll_responsibly@lemmy.sdf.org · 3y

Stationary Bike Air Compressor/Energy Storage - Low Tech Magazine

https://solar.lowtechmagazine.com/2023/07/human-powered-air-compressor-and-energy-storage-system/

44 points · 8 comments · view on lemmy.world

8 Comments

carl_dungeon@lemmy.world · 9 pts · 3y (3 replies)

I like this idea from a practical getting into shape prospect. I got an under desk elliptical but I really wish it was setup to charge a phone or battery- then I’d really feel like I was getting something tangible out of the work put in.

poVoq@slrpnk.net · 3 pts · 3y (1 reply)

https://solar.lowtechmagazine.com/2022/03/how-to-build-a-practical-household-bike-generator/

carl_dungeon@lemmy.world · 1 pts · 3y

Neat! Thanks!

HubertManne@kbin.social · 2 pts · 3y

Yeah I feel like it could be a nice motivator. Like can I do it enough to be the sole source of my phones charge.

teft@lemmy.world · 5 pts · 3y (3 replies)

The process of filling the empty tanks to 100 psi takes 5-10 pedaling sessions per day for roughly a week.

Eeesh.

luthis@lemmy.nz · 3 pts · 3y (2 replies)

Compared to 5 minutes when using electricity, it really puts things into perspective.

neutronicturtle@lemmy.world · 5 pts · 3y (1 reply)

Generally for extended periods you would pedal with something like 100 - 200 W while small electric compressors seem to be in > 1 kW region (and don't get tired as quickly :D).

So basically with pedal power you could feasibly run some led lights and portable electronics but anything beyond this is not practical.

neutronicturtle@lemmy.world · 1 pts · 3y

I wonder what the round up efficiency is like.