[eastforker]

500 degrees with preasures over 2000 pounds,something wrong here.600 pound steam is about 750 degrees.

[The Magical Mischief Tour]

[Sangamon Kid]

I just hope no one turns on the cold water spigot to the darned thing!

[P8riot]

500 degrees with preasures over 2000 pounds,something wrong here.600 pound steam is about 750 degrees.

You don't want steam in a reactor vessel, you need liquid coolant. I assume that you are checking saturation tables. Water at saturation temperature is borderline steam. You want a pressure that will prevent steam from occurring in the core and removing the cooling effect of the water. So 500 degrees and 2000 lbs is a perfectly acceptable combination.

[brianl703]

There may be a source of pressure other than that caused by the expansion of water.

Kinda like how the pressure relief valve on your water heater doesn't care if the excessive (over 150 PSI) pressure is due to thermal expansion or due to excessive water main pressure; it'll vent anyway.