CAI on turbo

Bruce.Hearn@cricatalyst.com Bruce.Hearn@cricatalyst.com
Mon, 28 Oct 2002 16:18:26 -0600


Brian scribbled:
>compressed air that is released quickly drops in temperature dramatically.

That relates to the empirically derived equality P(subscript: 1)/T
(subscript: 1) = P(subscript: 2)/T(subscript: 2). Any moving fluid is at
lower pressure than its surroundings, and as the above indicates, as
pressure falls so must temperature to maintain the equality. The greater
the delta P, the greater the delta T. "dramatic" temperature drops require
equally dramatic pressure drops.

What does this have to do with CAIs on turbos? Nothing. All cooling of
intake adiabatic heating is handled by the intercooler. Notice by tha above
relationship that intake pressure after the IC is lower than before it. For
those that remember basic chemistry, I am ignoring volume since it is
constant in typical turbo apps.

Bruce in Houston