Definition, pumps/compressors, was ?A/C questions ...

[dardal@xxxxxxxxxxxxxxx]

Quoting RandalPark@xxxxxxx:

> is a compressor. Now I have a question, what is a fradient?

...  typo, sorry.  Meant " pressure gradient" (f and g are too close on my
keyboard), a fancy word for pressure increase.

D^2

> In a message dated 8/31/2004 8:41:08 PM Eastern Daylight Time,
> dardal@xxxxxxxxxxxxxxx writes:
> 
>....
> >create more heat.  The incmompressible fluid in a pump behaves itself
> better,
> >and as a result, pumps can achieve very large pressure fradients with not
> too
> >much power, and generating not as much heat.
> >
> >D^2
> >