Instructables

How to make a Cheap & Portable Air Conditioner / AC unit



(Sorry about the widescreen issue, trying to fix it now)

I created this while playing badminton with my dad outside. It just came to me so here is how to make a cheap,easy AC unit.
 
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Step 1: Step 1: Materials

Picture of Step 1: Materials
The materials are below in the image. If the captions don't show up here: Tin foil, duct tape, paper plate, scissors, clear plastic wrap, salt (lowers melting point, basic chemistry), and finally ice.

Step 2: Step 2: Wrap tin foil around the paper plate

Picture of Step 2: Wrap tin foil around the paper plate
Wrap the paper plate in tin foil then tape it together with duct tape.

Step 3: Step 3: Add ice

Picture of Step 3: Add ice
salt.jpg
Add ice. It is crucial that you add salt because it lowers the melting point for the water which will make it change from solid to liquid to gas quicker.

Step 4: Step 4: Cover in clear plastic wrap then secure with duct tape

Picture of Step 4: Cover in clear plastic wrap then secure with duct tape
Reynolds_Clear_Plastic_Wrap-resized200.jpg
This is the final phase. It is now a cheap quick AC unit. I hope you enjoy!
So how does this cool off a room?
Redstormx12 years ago
This would hardly help to cool someone down.
A wet frozen towel on the head would work better.
But good job anyways :P
Matt214975 years ago
Might try this for my room.
teslafan1005 years ago
hey lemonie stop being such a downer.
lemonie5 years ago
Do you move air over this at all (like with a fan)? L
Undergroundoga (author)  lemonie5 years ago
What do you mean?
Do you blow air over the ice to circulate cold around the room, or do you just let natural air currents cool the space? L
Undergroundoga (author)  lemonie5 years ago
just let it stay, unless you would add a fan to the mix which would make the room cooler but dystroy the whole purpose of this tutorial.
Thanks, if I understand you correctly, there's no fan because this is cheap and easy? Have you measured how effective this is (e,g, with a thermometer)? L
Undergroundoga (author)  lemonie5 years ago
I tryed but the only thermometer was a medical (ear?) one and didn't work out too well, my cousin then did a before and after test, 3.5 out of 5 for it's coolingness, 6 out of 5 for weirdness.
Well it's easy - you don't mess with expensive copper-pipe and stuff. L