8320
Series
Tenuline®
Attenuator
4
Coolant Expansion
Models
8321,
8322
and
8323
allow
for
expansion
of
the
coolant
by
using
under
‐
filled
radiator
tanks
and
a
derating
of
their
load
carrying
capacities.
Model
8325
includes
an
expansion
tank
and
a
vent
plug
located
on
the
output
end
at
the
top.
When
power
is
applied
to
the
attenuator,
the
coolant
expands
into
the
expansion
tank,
as
the
air
in
the
expansion
tank
is
compressed
it
is
allowed
to
escape
through
the
vent
plug.
Heat Dissipation
Heat
Dissipation
is
accomplished
by
convection,
the
cooling
fluid
carries
the
heat
generated
in
the
resistor
elements
to
the
walls
of
the
coolant
housing.
This
housing
is
encased
in
a
set
of
radiating
fins
which
are
attached
to
its
outer
surface.
These
radiating
surfaces
dissipate
the
heat
of
the
coolant
into
the
surrounding
air.
