minimum voltage where electrolysis
begins.
Figure 16 illustrates that our
minimum voltage is 1.47 volts where
a minimum current of 24 milliamps is
flowing. More voltage will result in a
lower internal resistance that allows
for more current to flow as shown in
Figure 17.
Figure 17. Adding
More Voltage For
Greater Electrolysis.
Summary
to computer and
communications
technologies in that
short amount of
time. We shall see.
In the meantime
conserve energy
and “stay
green.” NV
In this first article, you were
introduced to some of the fuel
cell’s basic operational characteristics
like the dual modes of operation and
minimum water decomposition
voltage. Future articles will address
more of its inner workings, as well
as applications for portable
electronics and for powering vehicles.
If recent history is any guide, the fuel
cell will most likely gain greater
prominence in the coming years. For
example, the first decade of the 21st
century lead the way to the
expansion of the Internet and the
“always connected generation” with
Internet-enabled portable computers
and cell phones.
The second decade will most
likely lead to independent, portable
power sources that run off grid and
produce little or no pollution — plus
be economically competitive and
ready to use 24/7. Fuel cells will be a
big part of this. If that sounds impractical
or a bit too optimistic, then just look
back 10 years to see what’s happened
Credits: Unless otherwise noted, photo and other image credits used in this
article go to Wikipedia, Fuel Cell Store, and Horizon Fuel Cell Technologies.
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May 2010 53
