Forgot to mention these figures are for pure water (no antifreeze mixed
in, which will increase boiling points, depending on the mix ratio and
type of antifreeze).
>From Marks' Standard Handbook for Mechanical Engineers, Table 4.2.17:
(subtract 14.7 psi from the absolute pressure to determine gauge
pressure)
Absolute Pressure (psi) Temp (F)
14.696 211.99
15 213.03
20 227.96
25 240.08
30 250.34
35 259.30
You can find better steam tables in Thermodynamics books that will give
psi's between these 5 psi increments (unfortunately someone stole mine
from my office years ago).
Gary Boone
'70 2000
Brian Hollands wrote:
> I don't actually know the calculation used to determine boiling point
> so I
> don't know what the exact numbers are. I'll see if I can figure it
> out. I
> think you've got the jist and I know that we discussed this on the
> list last
> month but just to be sure, the higher pressure in the cooling system
> won't
> raise the coolant temperature but will raise the boiling point of the
> coolant.
> If I find the proper equation, I'll post it. Maybe Daniel knows? -
> It's
> physics, Boil's or Charles law? Something like that.
> Brian
>
> -----Original Message-----
>
> What then would a 15 LB. cap raise the temp.
> Pat
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