[Healeys] Aluminum Radiator
Bob Spidell
bspidell at comcast.net
Thu Oct 16 06:57:26 MDT 2014
It doesn't boil, just goes to 212 then gradually cools. Yes, with a 7psi cap boiling would be a few degrees higher
(forget the exact formula). Also, doesn't always go to 212, only when it's a warm day and the engine is running nominal
temp (180) or better.
This seems intuitively correct, but I can't explain it. It seems the 'latent heat' will increase the temps, but only to
a point (no additional heat is added since combustion has ceased). Any thermodynamicists out there who can explain this?
Bob
On 10/16/2014 5:45 AM, warthodson at aol.com wrote:
> I would expect the coolant boiling point to be above 212 F due to the increased pressure from the radiator cap & also
> the coolant being a mix of water & anti freeze.
> This seems to indicate that your gage is inaccurate or the coolant is not actually boiling, but then you would not
> expect it to rise to exactly 212 every time.
> Gary Hodson
>
>
> Also, on a warm day when I shut down the temp will go to exactly 212degF
> (100degC), which gives me more confidence the
> gauge is correct (what my dad calls 'latent heat' causes the coolant to go the
> boiling point).
>
> Bob
>
>
>
--
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Bob Spidell San Jose, CA bspidell at comcast.net
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