sci.energy.hydrogen

Eeyore wrote:
>
> Don Lancaster wrote:
>
>
>>Eeyore wrote:
>>
>>>knews4u2chew@ wrote:
>>>
>>>
>>>> /acrobat/
>>>
>>>
>>>" Non-Faradic generation of hydrogen gas is sometimes 80 times higher than the gas from normal electrolysis. Excess > hydrogen has proved difficult to replicate by other laboratories, although we are able to reproduce it regularly. "
>>
>>>I wonder why that is.
>>
>>
>>Mostly because the gas is really steam.
>>
>> /glib/ for a detailed analysis.
>
>
> Actually, I took a look at one of those 'experiments' on youtube.
>
> The promoters of the idea claim that 'pulsing' the current at high frequency is the key. In the youtube clip, the 'experimenter' was using a cheap clamp type DMM to measure the current.
>
> What do you reckon the chances are that the frequency in use was well beyond the -3dB point of the meter's AC frequency response ?
>
> Graham
>
More fundamentally, the crest factor would make the meter lie like a rug
on most any pulse waveform.

Always GROSSLY UNDERSTATING the result.

It is enormously difficult to measure the power of pulsed waveforms.
It most certainly can NOT be done with any reasonably priced DMM.

Depending on the duty cycle, the simultaneous voltage and current A/D
sampling would have be a mnimum of 100 to 1000 times the frequency of
the pulses being studied. Digital multiplication, of course, would be a
must for accurate power calculation.

The "research" is thus not even wrong.

ONLY the zero frequency term of any pulse waveform contributes
significantly to electrolysis. Although the highy nonlinear cell may in
fact create additional zero frequency terms through its highly
inefficient rectification.

/glib/ for a detailed analysis.

--
Many thanks,

Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss: / email: don@

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