Linnard?s hydrogen on demand system without electricity !

[z_p_e]

Dave,

One idea that just came to me was to use a second small DC motor driven by your fan motor. Use a higher voltage motor in "generator mode" to create the higher voltage/lower current supply needed to supply the switching circuitry.

We'd be shooting for about a 5VDC output from this little generator.

Just an idea.

Darren

[ResinRat2]

Have you tried maxing out the load on the fuel cell to see what it can supply in terms of current?

The biggest challenge to creating an automatic switching circuit would be generating a several volt/low current supply from such a low starting voltage.

No Darren, I have not tried maxing out the fan driving fuel cell yet. I was going to stop at Radio Shack over the weekend to pick up a few LEDs but my wife had other plans (lol) and projects (lol) that conflicted with my best laid plans.

I will get to this as soon as I can.

[ResinRat2]

The biggest challenge to creating an automatic switching circuit would be generating a several volt/low current supply from such a low starting voltage.

Darren,
I think the switching circuit will be more realistic once this model is scaled up to a larger size and there is a larger cushion of power output to play with. This would be something I would need help with anyway, I have no idea how to set up a simple switching circuit or how to design and power it off the fuel cell. Also, the larger unit would have a larger fuel cell or several fuel cells to run off of.

Thanks for your willingness to help. I appreciate any ideas you have.

Dave(RR2)

[z_p_e]

Hi Dave.

I tend to agree with you that it might be better to wait until the unit is scaled up to allow more voltage and or current to work with.

What you have now really is a solid proof of concept to base your up-scaled models on. It's a huge first step.

I do have a couple things in mind that should work well for the electrode switching. The first step is to acquire at least 5 Volts (AC or DC) to work with as start. So that either has to come directly from the fuel cell or cells, or via some small generator means I mentioned earlier.

Cheers,
Darren

[Tinker]

Hey Dave

I know you are trying to be thrifty with your power output, But.

This, http://www.norkro.com/ and a cam and reed switch/s might work for anode switching.

And a couple of questions? Any chance that your Electrolite is degraded due to lack of circulation or dead zones between the chambers. Leaving a gap under the divider between chambers (no holes, more surface area, below the bubbles) as long as the divider extends below the bottom of the electrodes/anodes help?

Short answers just fine, looking forward to your synopsis and update. Movies a real improvement thanks.

Tinker