From: David Mann
On Mar 17, 2011, at 8:08 AM, Joseph McAllister wrote:
As I discussed with some friends yesterday, I think any reactors
built in the future should be situated uphill from the ocean, and
downhill from a gazillion gallon water source, like a lake or
man-made reservoir, that could gravity feed reactors for a few
weeks in an emergency. It would need to be much higher than the
plant, as it takes quite a but of pressure to pump water into a
pressurized containment vessel.
In that case they may as well use the reservoir to build a
hydroelectric power station. Not that you'll get the same power
rating but if you have such a reservoir you may as well make use of
it.
There's one in West Virginia that works sorta' that way.
The reservoir is on top of a mountain with the nuke plant down by a
river below. The nuke plant runs at a steady load around the clock.
Any time demand for electricity drops below what the nuke plant is
generating the excess electricity is used to pump water up to the
reservoir on top of the mountain.
When demand gets high the water is allowed to run down again to power
hydro generators.
I don't think there was any provision made to use the water from the
reservoir for emergency cooling.
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