I was just researching about the coanda effect (aerodinamic effect) with my new pc fan when I have just seen a strange effect. I don't know about electronics, so I want let me know your opinion.

2 Wall transformers. (A: 24 Volts @ 0.29 A,    B: 9 Volts @ 0.33 A)

TESTS I HAVE MADE
* I connect 2 black wires together and 2 red wired together to the fan. The fan seems to be running at the same speed like when is only connected to the A transformer (24V@0.29A).

* If I connect 2 black wires together and the A wire (24v 0.29a) it runs ok

But...
* When I connect 2 black wires together to the black wire of the fan and then I connect ONLY the red wire of the B (9V 0.33A) the fan starts running at a very high speed!!! Remeber that the red wire of the transformer A is not connected, only the black wire is connected.
You can see it in the picture.

This is only disinformation or is a Energy Amplification effect?

The fan: 12 VDC @ 0.33A

And the B transformer is 9.5 Volts 0.55 A, instead 9V @ 0.33A sorry

I believe this is as simple as you are just creating a common ground, which probably increases the voltage..  that is my guess.

It isn't a good idea to hook up two different voltages in parallel.  There isn't any free energy that you can get from this.

This site may help: http://www.batteryuniversity.com/partone-24.htm

Also look up "common ground" and "floating ground"

Jason

Magnethos,

What kind of mains are you connecting to? 230VAC or 110VAC system?

Groundloop.

Quote from: Groundloop on October 12, 2008, 01:41:23 AM
Magnethos,

What kind of mains are you connecting to? 230VAC or 110VAC system?

Groundloop.

Here in Europe, the main is 230V 50-60Hz