Chapter: Hydrogen Generator
Topic:
Using the Extended RunH2 Generator kit
The
SRI
Extended
Run kit
for
theH2-SO Hydro–
gen
Generator consists
of
a
mollified
Hydrogen
genet'lltor
U I
~nd
electronics.
apefislallic
pump, and a large dessic8nt chamber.
Th8
exteIided
run
eel
comes equipped with a water
level
sensor
which
turns
!he
peristaltiC
pu:Tlp
on
andoff automalicany tomaintain a conslant
water
\e'IIeI
inside the
cee,
A one gallon
botIIe
of
grooery
store
quality distilled water
is
sufli–
dent
lor
two
months
Of
ITIOI'e
of operation.
The
large
dessic:ant chamber holds about
two
pooolls
of
indieBtingmole
sieve
desslcant.
This quantity of dessicant
is
also enough
lor
two
month
continuous
operation
at
40mlImin
or
longer
if
lhe H2
tIow
requirement is
Iowef.
In
the
photo to the right, yoo can
see
the
bottom
third
of
the
chamber
has turned grey
after
one
month
of
use.
The peristallH;punp r&-Cilallates the dislilled
water
from
the bottla
pasI!he
oxygen
side of
the
PEM
{proton
e:«:Illlflge IT1eITIbrane
J.
EJec;.
tro-osmOlic
drag pulls the water through the
mernbrane to the hydrogen
side.
INher1 the
water
level lises
to the tip of the water level
sensor,
the peristaltiC
pump
Shutsoff. Elloess
water
is
returned
to
the
disliledwater bottle.
By
pumping
the water
aaoss
them<ygensi<le
of the
PEM
inslead of directly into
the
WIler
reservoi rwe can
avoid'
pumping
against
the 30
psi
of
H2
pressure in
the
water reservoir,
which
is
hant
on
any pump and prone
10
leaks.
The
oxygen
side
of
the
membrane
is
et
ambient
pressure. so
a
si'"llle
periSlalliC
pump can
be
expe<:ted
to
wOOl
reliably and
lor .
long
kill'.
Adisposable 5
micron
25mm
syringe finer
is
used
to prevent dogging of the passageways
insida the H2 generator
from
dust
and small
fibers
whictl
seem
to
find thei rway Into the
WII–
ter reservoi r despite aUprecautions. This finer
should
be
ctlanoed
wnenever lhe dessicant is
re-generated.
Almost
any
brand of
syrinoe
til–
ter is
OK
to
use.
buI
we supply 8 Millipore
Milex-LS
part3
SLlS025NS,
S~icone
.".
Tubing
back to
-"
_.
118' 10.
l i'" 0 .0
PVC inlet
lubing
