01-18-2013, 04:03 PM
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#185
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Registered User
Join Date: Sep 2012
Location: Louisville, KY
Posts: 1,065
My Ride: 2004 325Ci vert
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Quote:
Originally Posted by WDE46
Seems faily obvious. If you're at 209F and not boiling, a very small reduction in pressure will result in boiling. Good thing our system runs pressurized.
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Yeah, but after posting, I realized that the water itself is raising the pressure.
Quote:
Originally Posted by kmulder
Pressure at this temperature (126 C) was 20.5 PSI.
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The vapor pressure of water at 126C (260F) is 35.4 psia, which is about 19.7 pisg (close to what they measured). I would've expected the measured pressure to be bit higher.
I'm going to have to ponder this for a while.
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