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Posted by Joseph on September 28, 2006, 10:33 pm
>
> >> we all know cavitation can occur in pumps pumping liquid, the question
> >> at hand is can cavitation also occur in pumps pumping a saturated
> >> vapor? what if part of the saturated vapor condenses back to a
> >> liquid? what if the coil is flooded?
> >
> > Cavitation occurs fairly easily in refrigerant systems operating at less
> > than or close to low design pressures.
>
> You are full of? it would be better that you stick to what you know!
> Cavitations can occur only in pumps that pump liquid unless you have
> new dictionary for all of us, that knows what cavitations is and when it can
> occur.
> Jake I have consider you to be little smater then that.
Dido, your questioning of Jake's knowledge and abilities is laughable. You
can not even
command the language you post with. How can you begin to question the
descriptive words used in
that language. I am not impressed by your posts. Post something productive or
just lurk and learn.
Joseph
> >Because the discharge is operating at a vacuum (in relation to the suction)
> >"Wao"
>
> Good luck from Dido
>
> >
> > My guess is that it's much more a possibility for a scroll, because of
> > physical design.
> >
> > The engineer's definition of suction cavitation is when the compressor
> > encounters 'bubbles' of liquid at the impeller. These are pumped through
> > with vapor. Because the discharge is operating at a vacuum (in relation to
> > the suction)... the liquid is drawn back into the impeller.
> >
> > That's what causes the noise... and compressor wear.
> >
> > It is not only a liquid pump phenomenon... it happens with everything from
> > air compressors to jet engines.
> >
> > It doesn't take a flooded coil... but the noise is greater with higher
> > amounts of cavitation... until the compressor is completely flooded.
> >
> > Seen it happen many times on commercial systems.. mostly from poor system
> > design.
> >
> > Jake
>
>
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