Seems like a company like Ingersoll Rand would have that information.
Here is a web page for a company who repairs rotary air compressors.
However, this information is waaay off topic for a heating and AC
Christopher A. Young
You can\'t shout down a troll.
simple: lektricity turns the motor, which spins the compressor, which does
the squeezin' of the air it pulls in from outer space and pushes into a
tank. It is often used to put the smoke into electrical parts that get let
out when the part "burns up" . Parts don't really burn up, only the smoke
Ingersol Rand has been building air squeezers for a very long time now, so
yes, they are the experts if anybody is.
I remember using an old IR compressor (big, big trailer thing that was
diesel powered, but you hand to start it with a gasoline pony engine that
was started with an arm busting hand crank. It was so big it reminded me of
a circus trailer. It was not funny though
Sure. Compression results when pumping occurs around a restricted or
blocked (throttled) circuit.
Compression ratio is the ratio of absolute pressures on either side of
the pump, and absolute pressure is referenced off of zero psia
(absolute vacuum or void).
Compression ratio is determined by adiabatic pumping volume vs flow
rate. In a standard air compressor, it would approach infinity until
the motor overloaded or the tank exploded, so there is a cycling
(cutout/cutin) switch. There is also and emergency release valve and
sometimes a "soft plug" (often also found on CO2 bottles).
This is for non-condensing gases (such as dry air), water vapor and
oil vapor notwithstanding. Partial pressures throw things off a
little, and then we have to deal with Dalton's law. Also, compression
adds heat, so we have to deal with Charle's law, unless the gas is
intercooled (happens in the tank eventually, anyway).
In a refrigerant circuit, things are very different, as pressures
(and therefore compression ratio) are determined by several
and pressures occur at or near saturation (liquid/vapor line on P-h
chart). Superheating, subcooling, losses and noncondensible
You will need to read some good books on pneumatics, hydraulics,
mechanical compression, refrigeration, and thermodynamics.
Also, Google is your friend.
But also, there is a lot of misinformation both online and offline,
so when you study and research, discernment is really your best
And before anyone asks:
No, I don't know why I answered this..
I just felt like it.
I woke up, fired up the newsreader, and saw
an honest question (however open-ended).
If I sound too much like C.Y., too bad!
I DO know my shit, even though I am sometimes
full of it. But my eyes are blue, so I must
be at least a quart low. Go with the flow, Moe.
I'm retired, but not finished. :-)
Aw, don't feel so bad. Many of my friends have
And sorry for the coarse jesting. It's fun stuff.
Besides, this newsgroup is 50% joke... no kidding!
Thus, I hail wisdom but refute discipline,
and I let the tattered shreds of my self-control
fly to the winds. If I offended any of you, you
are cordially invited to my shorts and then kiss
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