Comments on: Homebrew Air Conditioning

By: Chyden Finance: profit from hypocrisy » Blog Archive » Share Your Toys

Chyden Finance: profit from hypocrisy » Blog Archive » Share Your Toys — Sun, 27 Sep 2009 23:07:12 +0000

[...] Low-Cost ‘Air Conditioning’: Connect a coil of copper tubing to an electric fan, run cool water through it, et voilà, cool air. Use a DC fan, batteries, and a solar charger, and your costs are all upfront. [...]

By: Kavjit

Kavjit — Sat, 12 Sep 2009 12:10:32 +0000

hey geoff- thanks for the reply but i figured out an easier wy to start the siphon.
I fed water from the outside part of the vinyl tubing which then create a vccum inside the the tubing and starts the siphon in abt 20 secs.

Cheers, Im freezing
Kavjit

By: Geoff

Geoff — Thu, 03 Sep 2009 14:21:49 +0000

Hi Kavjit –

Two important things to consider:

1. Is everything sealed perfectly? Any leaks will cause the siphon to not work.
2. Is the water outlet end of the siphon a few feet below the water intake end of the siphon? There needs to be a difference in height in order to drive the water through. See http://en.wikipedia.org/wiki/Siphon

By: kavjit

kavjit — Thu, 03 Sep 2009 10:43:15 +0000

hey geoff
awesome idea and i tried it.
the first time siphon worked and all was good.but then the second time the water refused to even rise up through the tubing plz help me quick.

By: Geoff

Geoff — Sat, 22 Aug 2009 16:19:35 +0000

Hi Joe – Yep, sounds to me like the fan is just throwing too much heat for the coils to deal with. The coils are actually from the very first version I made and are not nearly as efficient as using a radiator – especially in high-load applications such as yours. If you’re going to use a big fan like that, you need an equally big heat exchanger, and the coils just aren’t going to cut it. Try a local surplus or parts store.

By: Joe

Joe — Sat, 22 Aug 2009 12:23:54 +0000

Geoff, I actually made a version of this using a huge 20″ industrial fan with coils on the front of the fan. Unfortunately, no matter how cold or how much water i pumped through the coils, it always warms up about less than halfway through the coils before making it all the way through. I can hardly feel a difference in room temperature.
Does the size of the fan or fan speed have anything to do with this? Maybe it doesn’t work when the fan is too big and too fast? What I mean is the rate of cooling simply cannot catch up because the diameter of the fan is too big and the rate of air flow is too great.

By: Homemade Evaporation Cooler « pam i am

Homemade Evaporation Cooler « pam i am — Fri, 24 Jul 2009 23:36:27 +0000

[...] or a portable air conditioning unit, I decided to make an evaporation cooler based on designs seen here and here and [...]

By: saad araib

saad araib — Thu, 23 Jul 2009 19:26:54 +0000

thx bro my friend and i need the inspiration

By: 3 reasons to use Firefox instead of Safari | mindreap

3 reasons to use Firefox instead of Safari | mindreap — Tue, 21 Jul 2009 20:24:50 +0000

[...] I just type in “homebrew ac” to my Awesome Bar and hit enter, and it brings up the site I want. On a similar note, it even seems to find things that aren’t in my history, I assume by using [...]

By: Anonymous

Anonymous — Sat, 04 Jul 2009 23:54:11 +0000

[...] [...]