...
Overall
...
Data
...
Analyses
...
and
...
Conclusions
...
Data
...
from
...
the
...
lab
...
prototype
...
and
...
robust
...
CD
...
designs
...
collected
...
in
...
the
...
Fall
...
2008
...
experiments
...
...
and
...
...
were
...
analyzed.
...
Both
...
lab
...
set
...
ups
...
used
...
the
...
same
...
FC
...
so
...
the
...
doser
...
tubing
...
lengths
...
were
...
the
...
same,
...
making
...
analysis
...
simpler.
...
All
...
data
...
was
...
corrected
...
in
...
MathCAD
...
so
...
that
...
float
...
heights
...
and
...
lever
...
arm
...
positions
...
were
...
converted
...
into
...
chem
...
doser
...
heights
...
at
...
each
...
position
...
out
...
from
...
the
...
pivot.
...
The
...
chem
...
doser
...
height
...
is
...
actually
...
the
...
change
...
in
...
height
...
downward
...
from
...
the
...
zero
...
level,
...
which
...
corresponds
...
to
...
the
...
driving
...
head
...
on
...
the
...
system
...
being
...
applied
...
by
...
the
...
moving
...
lever
...
arm.
...
This
...
was
...
then
...
plotted
...
on
...
a
...
graph
...
to
...
show
...
the
...
relationship
...
between
...
doser
...
height
...
and
...
outflow
...
measured,
...
which
...
can
...
be
...
seen
...
below.
The data fall along a nearly-linear path with a spread of about 0.2 mL/sec that appears to fall off around 1.1 mL/sec outflow. There is relatively little data collected at the heigher flowrates, though, so this conclusion is not very concrete. The MathCAD program (ACDFall08LeverT) used to analyze this data can be found attached here.