Anyone tried home made aircon
 

I'm sitting in my room melting at the moment, ain't got a bean to spend as were moving soon so wondered how to make it cooler, then remember seeing a post on here a while ago about home made aircon. Copper pipe is coiled on the front and rear of a fan and iced water is pumped round the piping to cool the airflow. Seems theres a few comments on how good it works and I got all the materials, most ex fishtank stuff, pumps and hose and some copper brake line so would it be worththe effort.

That is a nice way to cool, but only works in dry areas.

Is it dry where you are? The drier the better. If it is humid, you will need some kind of mechanical cooling and a heat exchanger. Air conditioners move enthalpy (heat AND humidity) from a space. Passive evaporative cooling, like what you suggest, only works well without the humidity part. In fact, it will ultimately raise the humidity in your space.

BTW, your image link does not work.

How are you going to chill the water and not have the heat dumped inside the same room? You can only move heat and usually generate more doing so.

If you let water evaporate, it uses up energy. Of course, the question would be what happens with the water.

The water is pumped from a cointainer full of ice water and back into the same container, whenthe ice melts, more is added and the water is changed

Not much use at the end of the day but keeping the curtains closed during the day will stop the room heating up too much.

You'd get a better effect pumping ice water through an old car radiator as it has far more surface area.

That said, it won't work very well. You should look into evaporative cooling. There are some pads you can buy at stores that work well enough in low humidity conditions.

http://en.wikipedia.org/wiki/Evaporative_cooler