Quote:
Originally Posted by osbornsm
... In regards to the thread title... at what point does coolant no longer "cool"
I was under the impression that coolant boiling point was just a "skooch" higher than the boiling point of water.
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The coolant will continue to work until it boils. Steam is still capable of removing heat but the density is much lower so it doesn't absorb as much as liquid water.
FWIW, the boiling point of water/antifreeze goes up about three degrees F per psig. Straight water is about 2 degF/psig. But those are just a rule-of-thumb numbers.