I made a sort of Homemade air conditioner today.

It’s based of a powerful fan (150 w, sounds like a large aircraft) and 5 meters of copper tubing in a coil mounted on the fan. Cold water (around 10 degrees Celsius) goes trough the copper tube at around 2 liters per minute.

I also added strips of 0,2 mm thick copper plating to help disperse the heat.

I measured it’s cooling capacity today at around 2000 BTU/H, but I’m going to reserve judgment until tomorrow (it will be around 30 degrees Celsius, just like today).