Thanks Mike for applying so much clarity to this issue. I think you
have described it exactly right.
Calculating the total silver released into the solution, or at least the
maximum possible, based on watt-seconds was the basis of Bob Lee's and
Mike Monet's posts indicating how to calculate the amount of silver in
the CS (Faraday's equations of electrolysis, I think...)
This is what I used to determine the amount of time to run my 1/2 gallon
of CS when I make it with a constant current system but no conductivity
sensor. I did the integration of the current before the current limit
kicked in, and after that I had a constant current situation which could
be regulated for ppm by the time of brewing. This works quite
consistently for a known brewing cell with a known distilled water.
The thing that's bothering me is illustrated in Ole Bob's graph of the
"Effects of Initial Conductance on Brew Time" on page 8 of his CS book.
One brew, starting with higher conductivity water, took 45 minutes, the
other,starting with lower conductivity water, took 120 minutes. Both
brews ended up with the same general silver ion ppm. However, the first
one required 244 watt-seconds and the second one took 348 watt-seconds
to get to the same silver ion concentration. This was a polarity
switching cell; what happened to the extra liberated silver? The graph
says very little tyndall. This implies that it is more efficient to
start with higher conductivity distilled water and brew for a shorter
time at higher current than to start at a lower conductivity DW and brew
longer at a lower current!?...
Dan
(What? You don't have a copy of Ole Bob's book? Get your a$$ in gear
and get one right away! You don't know how long they will be
available!... I just bought two more - I had given one away, and now I
have one to keep and one to loan out. ;-))
M. G. Devour wrote:
Bob writes:
Power factor becomes a problem in alternating current systems, NOT
switched DC systems. It involves the phase angle bewteen the voltage and
current in the system.
Bob's right, in that the term Power Factor has a specific meaning in
alternating current systems with reactive loads, neither of which apply
in a typical low voltage CS generator, no matter how sophisticated or
simple its design.
I think the original person (Wayne?) who suggested "Power Factor" was
simply thinking of the relevance of voltage and current -- which, when
multiplied together gives you the power being dissipated in a circuit --
to the making of CS.
I think the most relevant answer was alluded to early on on this
thread, probably by Bob, again, that if you integrate the current
driven through the generating cell, you'll get a number which is very
closely related to the total amount of silver that's been put into the
water.
You can think of this integration process as adding together the
current reading every second for the duration of the run. You'll get a
figure in milliamp-seconds or amp-seconds. Multiply each reading by the
corresponding voltage reading, you'll get a value in milliwatt-seconds
or amp-hours, both of which are a measure of work.
There might be a lot of information that a careful researcher could
tease out of such readings and calculations regarding the form the
silver takes in the water in response to applied voltage, relative to
surface area, geometry, initial purity, and other factors that affect
the process. In fact, Bob has done a lot of just that sort of study.
It's easy to confuse matters when one innocently attempts to express an
idea with a term that sounds right but already has another, precise but
totally different meaning.
Be well,
Mike D.
[Mike Devour, Citizen, Patriot, Libertarian]
[[email protected] ]
[Speaking only for myself... ]
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