Dear Traian,
Breeder-type reactors especially use liquid sodium cooling in the
primary circuit. The problem found was that under severe
neutron flux, the sodium metal became itself radioactive
and the disposal issue was astronomical in cost alone, never mind
the safety ramifications.
Our company is now using "glassification," whereby we mix radioactive
waste with ordinary sand and heat it to where the sand melts and forms
a glass type admixture with the waste. This then is much more stable
than a drum of let's say radioactive nitric acid. The drums are then
stored way below the Utah salt flats.
Hal
W4HBM
On Mon, 06 Sep 2004 10:35:11 +0300 Traian <yo9fzs@office.deck.ro> writes:
> As I know, the sodium is used for heat transfer for some
> power plant nuclear reactors also?!...
>
> 73,
> Traian
>
>
> Vic Rosenthal wrote:
>
> > CLIVE COLLINS wrote:
> >
> > > Their answer after a
> > > lot of research was to make the exhaust valve stem hollow and
> fill it
> > > with Sodium with significantly good results.
> >
> > Sodium valves were used in a lot of internal combustion engines,
> not
> > just Nortons! The idea is that the liquid sodium inside the valve
> stem
> > would actually flow, thus transferring heat by convection away
> from the
> > valve face and through the valve guide to the cylinder head. In
> the
> > case of coils, there's no obvious analogue for the cylinder head
> to
> > dissipate heat.
> >
> > --
> > 73,
> > Vic, K2VCO
> > Fresno CA
> > http://www.qsl.net/k2vco
> >
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>
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