 |
Thermal-Hydraulics | |||||||||||||
Natural Circulation |
||||||||||||||
|
|
||||||||||||||
|
I |
Natural
circulation
arises
from
the
buoyancy
effect
due
to
temperature
differences.
Hot
substances
rise
and
cool
substances
sink.
This
is
caused
primarily
by
the
buoyancy
effect
of
the
hotter
substances
(lower
density)
being
forced
up
by
the
cooler
substances
(higher
density).
An
example
of
this
is
the
temperature
distribution
in
your
house.
You
will
notice
that
the
house
is
usually
warmer
at
the
higher
elevations
verses
the
basement
where
it
is
cooler.
Another
example
is
the
circulation
of
the
coolant
in
the
reactor
coolant
system
without
the
use
of
the
reactor
coolant
pumps.
The
circulation
is
due
to
the
natural
convection
resulting
from
the
different
densities
of
relative
cold
and
heated
portions
of
the
system.
Some resource links are provided below:
|
|||||||||||||
 |
||||||||||||||
