Subject: Tom Parkes Progress Report
From: ACRE NL
Date: 2/22/2003, 8:27 AM


Russell Kent wrote:
 >
 > > Thomas Parkes wrote:
 > >     Question for cooling system engineers.  I've set my EIS to
warn of
 > > coolant temperatures above 220 degrees, but I don't believe I've
seen
any
 > > data on the actual boiling temperature of 50/50 water/gycol
coolant
under 13
 > > lbs pressure.  What would be a realistic red-line to use?
 >
 > A 50/50 ethylene glycol (C2H6O2) water blend boils at 223 degF
under 1
ATM.
  The
 > 13 psi working pressure will raise the boiling point another 40
degF (
approx).
 > 220 degrees (assuming that's accurate) for 13 psi might be fine,
but it
really
 > depends on lots of things that are hard to quantify.  Where's the
temperature
 > reading occuring in the coolant loop?  How accurate is the
sender/receiver
system?
 >
 > Russell Kent


You might try making that a 90/10 glycol mix. Much better heat
transffer. And
run a 22 pound cap.

Lynn E. Hanover

Bill Hyde wrote:

Where can a 22psi cap be purchased?
Bill Hyde

Pep Boys.

Paul Lamar
 
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